Laboratory testing services

Commission Regulation (EU) No 2023/915 specifies maximum levels for heavy metals in various foods, and Directive 2002/32/EC does the same for various feeds. This analysis can be used to quantify traces of the heavy metals lead (Pb), cadmium (Cd), arsenic (As), and mercury (Hg) in food, feed, and dietary supplements. The method applied is ICP-MS according to the EN 15763 standard.

Determination of carbon, hydrogen, nitrogen, sulfur, and oxygen content of an organic sample. CHNS analysis (”LECO analysis”) is performed using a flash combustion method, where the sample is combusted under 25 kPa of O2 at an elevated temperature (1000 °C), followed by gas chromatography separation and detection using a thermal conductivity detector. Oxygen is analyzed by reduction on granulated carbon at 1480 °C, utilizing high-temperature thermal decomposition and conversion of oxygen into carbon monoxide before gas chromatography separation and detection with a thermal conductivity detector. The sample can be either solid or liquid, but water in the sample affects the results. In the case of aqueous samples, it is possible to dry the sample before analysis. The displayed price by includes the full CHNOS package with two parallel measurements and applies to conventional organic samples. The results are reported as wt-% of the initial sample. The ash, drying and dry loss measurements will increase the minimum required sample material need to 300 mg. The analysis gives the total carbon, hydrogen, nitrogen, sulfur, and oxygen content of the material, but it does not identify any chemical structures. The measurement can be combined with other methods, such as GC-MS, 1H, and 13C NMR, to perform substance structure identification. Analysis can be split into the following packages: CHN, O, and S.

XRF is a quantitative and qualitative method that can be used to analyze solid and liquid materials. This method is intended for a standard screening of homogeneous materials that do not require special sample preparation, precautions, or have any other special requirements. Wavelength-dispersive XRF (WDXRF) is used to perform the measurements unless energy-dispersive XRF (EDXRF) is specifically requested.

Time-of-Flight Elastic Recoil Detection Analysis (ToF-ERDA) measurement for determining the elemental concentrations of thin films. ToF-ERDA is capable of identifying all elements, including various hydrogen isotopes. It provides elemental depth profiles by determining the concentration of each element at different depths within a sample. Typically, the method achieves detection limits ranging from 0.1 to 0.5 atomic percent and depth resolution between 5 and 20 nm. It is suitable for analyzing films with thicknesses between 20 and 500 nm. For accurate measurements, the sample surface should be smooth, with a roughness of less than 10 nm. The method is inherently quantitative when analyzing thin films on typical substrates, such as silicon (Si), gallium nitride (GaN), silicon carbide (SiC), gallium arsenide (GaAs), or indium phosphide (InP). So, reference samples are not needed to obtain quantitative results. The technique is particularly useful when analyzing light elements due to its good detection limits. In addition to typical ToF-ERDA measurements, we also offer LI-ERDA (also referred to as Foil ERDA) for more precise determination of hydrogen isotopes. The detection limits with LI-ERDA are typically around 0.01 atomic percent, and depth resolutions of ~1nm can be achieved. LI-ERDA only allows detection of hydrogen isotopes.

The Finnish National Regulation 268/1992 (CTM) applies to contact materials manufactured in Finland or imported directly from third countries which do not have harmonized EU legislation. However, although harmonized legislation exists on ceramic contact materials (Directives 84/500/EEC, 2005/31/EC), which has been put into force nationally in Finland by Regulation KTM 165/2006), this Decision applies to ceramic products with a lip line and/or intended for toddlers. Limits defined by the Degree: Pb 0.50 mg/dm2, Cd 0.10 mg/dm2, Cr 2.0 mg/dm2, Ni 2.0 mg/dm2.

This measurement detects the migration of heavy metals and aluminum to cold water from paper or board intended as food contact material. The method is suitable for the determination of migration of aluminum (Al), lead (Pb), and cadmium (Cd) in accordance with BfR XXXVI recommendations. The migration of cadmium (Cd), lead (Pb), and mercury (Hg) can also be determined using the CEPI testing recommendations for food contact paper and board.

Testing for the migration of aluminum, antimony, arsenic, barium, boron, cadmium, chromium (III), chromium (VI), cobalt, copper, lead, manganese, mercury, nickel, selenium, strontium, tin, organic tin, and zinc from toy materials and parts as well as drinking items and cutlery intended for small children. The migration of chromium (VI) and organic tin will be assessed if the value for the total content is exceeded. The test is a key part of toy safety testing by EU regulations.

Determination of total organic fluorine (TOF) in paper, polymers, and textiles. As these types of samples generally have low inorganic fluorine content, TOF is analyzed as total fluorine (TF), unless requested otherwise. If needed, total inorganic fluorine (TIF) can also be measured, and TOF can then be calculated as the difference between TF and TIF. Please note that the additional determination of TIF involves extra analytical steps, which will be reflected in the price. TOF analysis gives information about the total amount of organic fluorinated compounds in the material. It can also be used to evaluate the overall presence or absence of PFAS, even though this method cannot identify individual PFAS compounds. Do not hesitate to contact us for more information and a quote for your sample batch.

This metal screening analysis includes the semi-quantitative determination of 70 elements. The method can be used, for example, to determine the background concentrations of metals in environmental samples or to study the elemental distribution of unknown samples. Screening is also often performed to assess which metals should be analyzed by a quantitative method. The measurement is performed using a high-resolution ICP-MS technique (ICP-SFMS), which can identify very low elemental concentrations. A semi-quantitative determination of the following elements is included: Ag, Al, As, Au, B, Ba, Be, Bi, Br, Ca, Cd, Ce, Co, Cr, Cs, Cu, Dy, Er, Eu, Fe, Ga, Gd, Ge, Hf, Hg, Ho, I, Ir, K, La, Lu, Mg, Mn, Mo, Na, Nb, Nd, Ni, Os, P, Pb, Pd, Pr, Pt, Rb, Re, Rh, Ru, S, Sb, Sc, Se, Si, Sm, Sn, Sr, Ta, Tb, Te, Th, Ti, Tl, Tm, U, V, W, Y, Yb, Zn and Zr. However, please note that some elements may not be determinable due to matrix interference. During this semi-quantitative analysis, the instrument is calibrated for about 30 elements and the rest of the analytes are quantified using sensitivity factors for calibrated elements with similar mass and first ionization potential considering isotope abundances. Quantitative analysis is also available at an additional price. During this analysis, all elements are calibrated (excluding halogens and Os). Please ask for an offer for this service.

Determination of the total organic fluorine (TOF) content in combustible materials using combustion ion chromatography (CIC). By default, TOF is analyzed as total fluorine (TF). If required, total inorganic fluorine (TIF) can be measured as well, and TOF calculated as the difference between TF and TIF. TOF analysis gives information about the total amount of organic fluorinated compounds. It can also be used to evaluate the presence of per- and polyfluoroalkyl substances (PFAS) in the material, even though individual PFAS compounds can't be analyzed with this method. The analysis is suitable for many different materials. Please describe the sample in detail when requesting an offer to help us prepare a quote quickly.

Determination of total organic carbon (TOC) content of water samples. The results of the analysis will be reported in mg/l.

Determination of Be, Ba, Co, Al, Mg, Cu, Li, Mn, Ag, Sn, Ti, V, Zn, Tl, B, Hg, Mo, Fe, Ca, K, U, P, Cd, Na, Cr, Ni, Pb, Sb, As, and Se in water samples with ICP-MS-technique. The sample is homogenized and acidified (HNO3), after which the analysis is performed from the liquid phase. The displayed price applies to natural waters. If the sample contains a lot of solids or the matrix is significantly different from natural water (for example, wastewater and industrial waters), additional steps may be needed, and this will be reflected in the price. The concentration of each element is reported in µg/l.

We offer two methods for determining the total fluorine (TF) content of combustible materials: Accredited EN 14582 method, based on combustion ion chromatography (CIC). This is the default approach, recommended by the Nordic Council of Ministers as a quick and powerful total fluorine screening technique., EN 15408 mod. method using oxygen bomb combustion treatment followed by ion chromatography (IC). This method can be applied to plastic sheets and granules, and it is also possible to determine the total content of S, Cl, and Br. Please let us know if you wish to use this method.. The displayed starting price includes an analysis according to EN 14582, with sample preparation (air drying and milling of the sample to particles smaller than 1 mm) included.

ICP-OES measurement package for soil, sludge, or sediment samples. Pre-treatment of the sample with aqua regia decomposition is included in the price. The following elements are quantified using the ICP-OES technique: Ag, As, Ba, Be, Cd, Co, Cr, Cu, Fe, Hg, Li, Mn, Mo, Ni, Pb, Sb, Sn, Sr, Tl, V, and Zn. The concentrations are expressed in mg/kg d.m. The analysis is also available with an express turnaround time. Ask our experts for more information. More specific packages, such as heavy metals or nutrients, can also be provided for soil, sediment, or sludge samples.

Migration of lead and cadmium from ceramics, glass, and enameled articles. For ceramic articles and tableware, limits defined in Commission Directive 2005/31/EC (amending Council Directive 84/500/EEC) apply: Category Limit for lead Limit for cadmium Articles which cannot be filled and articles which can be filled, the internal depth of which, measured from the lowest point to the horizontal plane passing through the upper rim, does not exceed 25 mm 0.8 mg/dm2 0.07 mg/dm2 All other articles which can be filled 4.0 mg/l 0.3 mg/l Cooking ware; packaging and storage vessels having a capacity of more than three liters 1.5 mg/l 0.1 mg/l In addition, limits for the release of lead (2 mg/article) and cadmium (0.2 mg/article) for articles with a lip and rim area (such as cups and mugs) have been defined in standard ISO 4531-1/2:1998. For glass and enameled products, no harmonized regulation exists currently within the European Union. By convention, limits defined by Commission Directive 2005/31/EC can be applied. However, member states can impose additional or separate restrictions regarding migration limits, tested elements, and/or test conditions. Examples of specific requirements defined at the national level are listed below: Member state Regulation Specific requirements* France Fiche MCDA n°2 (V01 – 01/05/2016) Ceramics & glass: separate migration limits for articles with a lip and rim area, migration limits for Al, Co, and As. Enameled and decorated articles other than ceramics: migration limit for Cr VI. Italy Ministerial Decree of 21/03/1975, as amended Lead glass: separate test method and migration limit for Pb. The Netherlands Commodities Act (Packagings and Consumer Articles) Glass and glass ceramics: separate migration limits for Sb, As, Ba, B, Cd, Ce, Cr, F, Co, Li, Pb, Mn, Ni, Rb, Zr. Ceramics and enamels: separate migration limits for As, Ba, B, Cd, Cr, Co, Hg, Li, Pb, Rb, Se, Sr. Finland Degree (KTM) 268/1992 Glass, enamels, and ceramics with lip and rim area and/or intended for toddlers: separate migration limits for Pb, Cd, Ni, Cr. * Testing for specific requirements is possible for an additional cost Some of the available test methods are listed below: Material type Product type Migration method Available methods Ceramics Flatware (e.g. plates) Total immersion EN 1388-1, ASTM C 738 Ceramics Holloware (e.g. cups) Article fill EN 1388-1, ASTM C 738 Glass Flatware (e.g. plates) Total immersion EN 1388-2 Glass Holloware (e.g. cups) Article fill ISO 7086-1 Ceramics, glass, enameled metal Holloware (e.g. cups) Lip and rim test ASTM C 927

Determination of the concentrations of Co, Si, P, S, B, and Na in solid chemicals. This method is meant for chemicals like Co(NO3)2. The results include the concentration of the main component (Co) and the concentrations of selected impurities.

Determination of elements in food, feed, and dietary supplements with ICP methods (ICP-MS, ICP-AAS, ICP-OES). Elements can contribute to the quality and properties of food and feed in several ways. Some are essential minerals that enhance nutritional value, while others (e.g., heavy metals) are considered undesirable contaminants with maximum levels set in EU food contaminant legislation. Some elements can also contribute to the sensory properties of products. Regulation (EU) No 1169/2011 allows the declaration of certain minerals if the food contains them in significant amounts in relation to daily reference intakes. The EU also keeps a database of authorized mineral additives in feed and regulates the allowed tolerances between declared amounts and analyzed amounts. Elements that are generally considered hazardous contaminants are regulated by Regulation (EU) No 2023/915 and Directive 2002/32/EC. The most common elements that are available for analysis include: Aluminium (Al), Arsenic (As), Boron (B), Cadmium (Cd), Cobalt (Co), Chromium (Cr), Iron (Fe), Manganese (Mn), Mercury (Hg), Nickel (Ni), Lead (Pb), Selenium (Se), Tin (Sn), Zinc (Zn), Molybdenum (Mb), Calcium (Ca), Phosphorus (P), Magnesium (Mg), Potassium (K), Sodium (Na), Titanium (Ti), Sulfur (S). It may be possible to analyze other minerals or heavy metals upon request. You can get more information on the analysis options and a quote for quantifying selected elements by contacting us.

High-resolution mass spectrometry (HRMS) analysis to determine the exact molecular masses of various compounds, ranging from small organic molecules to large biological macromolecules. High accuracy makes HRMS ideal for the identification of molecular structures. Sample requirements: Information regarding the solubility of the sample in common high-performance liquid chromatography (HPLC) solvents (e.g., H2O, methanol, acetonitrile) or other solvents should be provided., 0.1% formic acid is used as an additive in the test. It is essential to confirm the sample's stability in this acid., Providing the expected molecular weight of the analyte(s) and molecular structure of the sample as a ChemDraw file is beneficial.. Measurement details: Scans can be performed in both positive (+ve) and negative (-ve) ion modes., An ACQUITY RDa Detector is utilized for detection..

The ICP-MS technique provides information on the concentrations of metals in a sample. The measurement includes the following elements: Na, Mg, K, Ca, Li, Be, B, Al, Si, P, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Ga, As, Se, Rb, Sr, Zr, Nb, Mo, Ag, Cd, In, Sn, Sb, Te, Cs, Ba, Hf, Hg, Tl, Pb, Bi, U. In the results, the elemental concentrations are expressed in units mg/kg.

ICP-MS elemental analysis for geological samples (rocks, ore, mining samples) with aqua regia digestion. The analysis includes the following elements: Ag, Al, As, Au, B, Ba, Be, Bi, Ca, Cd, Ce, Co, Cr, Cs, Cu, Fe, Ga, Ge, Hf, Hg, In, K, La, Li, Mg, Mn, Mo, Na, Nb, Ni, P, Pb, Pd, Pt, Rb, Re, S, Sb, Sc, Se, Sn, Sr, Ta, Te, Th, Ti, Tl, U, V, W, Y, Zn, and Zr. The following rare earth elements (REE) are also included: Dy, Er, Eu, Gd, Ho, Lu, Nd, Pr, Sm, Tb, Tm, and Yb. Gold determinations by this method are semi-quantitative due to the small sample weight used. The price does not include pretreatment, such as crushing or sieving. Shipping included up to 5 kg total weight, extra cost for larger shipments. Please note that we may be unable to offer these tests for small one-off projects involving just a few samples.

The following analyses are included in this nanoparticle analysis package, intended to characterize nanoforms according to the REACH Regulation. Particle size distribution and aspect ratios by SEM-EDX Preparation with isopropanol, Sample dispersion on a slide, with centrifugation, SEM analysis and particle count by image analysis, Nanoparticle detection and classification according to the 2022 EC recommendation on the definition of nanomaterial, Reporting of PSD parameters for ~300 particles, including the following: PSD diagram, accumulated and individual., Feret min (min, d10, d25, d50, d75, d90, d95, max), Feret max (min, d10, d25, d50, d75, d90, d95, max), Equivalent circular diameter (min, d10, d25, d50, d75, d90, d95, max), Aspect ratio (calculated based on individual Feret min and Feret max measurements), Number based nano-fraction (%).. Crystal phase analysis by XRD/Rietveld method Sample preparation: drying, grinding, X-ray preparation, XRD analysis over an angular range extending from 10° to 90°, Identification of the crystalline phases present in the sample, Semi-quantitative analysis of phase distribution, using the Rietveld method, Interpretation of diffractograms. Chemical composition/purity by ICP-AES and CHNS analysis ICP-AES quantification of inorganic and metallic elements: Ag, Al, As, B, Ba, Be, Bi, Ca, Cd, Co, Cr, Cu, Fe, K, Li, Mg, Mn, Mo, Na, Ni, P, Pb, S, Se, Sb, Si, Sn, Sr, V, Zn, Ti, and Tl, Determination of C, H, N, and S with an elemental analyzer. Volume-specific surface area (VSSA) and VSSA diameter calculations (optional) BET specific surface area measurement of powder by nitrogen adsorption, True (skeletal) density measurement by He pycnometry, excluding intergranular and intragranular porosity, Both analyses include sample preparation. You can request a quote for the analysis using the form below. Please note that the OECD 125 guideline does not apply to this analysis.

Classic stable isotope analysis of carbon (13C) with isotope-ratio mass spectrometry (IRMS). The results are reported in the unit VPDB, ‰. The analysis is suitable for various sample materials. Please contact the Measurlabs expert for more detailed information on the analysis.

Diesel exhaust fluid (DEF) is an additive used in diesel-powered vehicles to help the catalytic reduction of nitrous oxides. Thus, the use of AdBlue and other exhaustive fluids improves ambient air quality. DEF testing package according to ISO 22241:2019 includes the measurements listed below: Urea content (ISO 22241-2C), Density at 20 °C (EN ISO 12185) , Refractive index at 20 °C (ISO 22241-2C), Alkalinity as NH₃ (ISO 22241-2D), Biuret (ISO 22241-2E), Aldehydes (ISO 22241-2F), Insoluble matter (ISO 22241-2G), Phosphate (ISO 22241-2H), Determination of Al, Ca, Cr, Cu, Fe, K, Mg, Na, Ni, and Zn content (ISO 22241-2I).

Determination of total metal concentrations in a water sample using ICP-MS technology. The analysis package includes the elements Sb, As, Hg, Cd, Co, Cr, Cu, Pb, Ni, Zn, and V. The concentration of each element is expressed in µg/l. The method is suitable for various sample types, from natural waters to wastewater. However, for highly contaminated samples, the method's reporting limits may increase. More elements can be added to the analysis package upon request. We will be happy to prepare a customized offer for you.

ICP-MS elemental analysis for geological samples (rocks, ore, mining samples) with Four Acid digestion. The analysis includes the following elements: Ag, Al, As, Ba, Be, Bi, Ca, Cd, Ce, Co, Cr, Cs, Cu, Fe, Ga, Ge, Hf, In, K, La, Li, Mg, Mn, Mo, Na, Nb, Ni, P, Pb, Rb, Re, S, Sb, Sc, Se, Sn, Sr, Ta, Te, Th, Ti, Tl, U, V, W, Y, Zn, and Zr The following rare earth elements (REE) are also included: Dy, Er, Eu, Gd, Ho, Lu, Nd, Pr, Sm, Tb, Tm, and Yb Lead (Pb) isotope analysis is available for an extra cost (20 €) The price does not include pretreatment, such as crushing or sieving. Additional logistics costs are billed if the sample weighs more than 5 kg. Please note that we may be unable to offer these tests for small one-off projects involving just a few samples.

Rutherford Backscattering Spectrometry (RBS) can be used to measure the composition of solid samples quantitatively at the surface as well as depth profiling. RBS is used for the analysis of heavy elements and can be combined with ToF-ERDA when lighter elements also need to be analyzed. Elements with similar mass can be difficult to differentiate.

Our δ15N stable isotope analysis determines the ratio of 15N to 14N in a given sample material by a continuous flow isotope ratio mass spectrometer (IRMS). Results are expressed in per mille (‰) as the deviation of the isotope ratio from a standard reference material. In the case of 15N analysis, this is typically atmospheric nitrogen (15N/14N = 0.0036765). The analysis is suitable for a wide range of sample materials, including, but not limited to: water, sediment, soil, plant tissue, animal tissue, bone, and other organic materials. All of our stable isotope analyses are conducted by ISO 17025-accredited facilities. Please contact us using the form below to arrange testing on your samples.

Metal analysis package for a lignin sample including the following elements: Al, Cd, Co, Pb, Hg, P, Na, Zn, Sb, Ca, Cu, Mg, Mo, K, Ti, As, Cr, Fe, Mn, Ni, Si and V. The analysis is performed with ICP.

Spark-OES is a commonly used method to determine the elemental composition of metals and alloys. The method provides a better alternative to other similar analysis techniques (ICP-OES, ICP-MS, XRF) due to its speed and low detection limits. All metallic elements and some non-metallic elements, such as C, N, and S, can be detected in the ppm range. The method is suitable for solid metal pieces with a minimum size of 1 x 1 cm. Sample preparation is included in the analysis.

Volumetric (static) or dynamic (pulse) chemisorption analysis by CO or H2. The method is mainly used to determine catalyst activity and active sites. When coupled with TPX (temperature programmed experiments, TPO, TPR, TPD), this method can give information about adsorbed species and surface species. Chemisorption can also be conducted with other reactive gases, please contact us for more information.

Analysis package for dietary supplements. All supplement products must comply with maximum levels for heavy metals lead (Pb), cadmium (Cd), and mercury (Hg), as specified in Commission Regulation (EU) No 2023/915. Microbiological quality should also be assessed to ensure high-risk pathogens do not end up in the product. The displayed price includes the following analyses: Heavy metals (As, Cd, Hg, and Pb), Aerobic plate count, Yeasts and moulds, Escherichia coli, Coagulase-positive staphylococci, Salmonella in 25 g, Listeria monocytogenes in 25 g. Upon request, additional parameters can be added to the package at an additional cost. Commission Regulation (EU) No 2023/915 sets maximum levels for the following contaminants in certain supplement products: Citrinin in food supplements based on rice fermented with red yeast Monascus purpureus, Pyrrolizidine alkaloids in food supplements containing botanical preparations, including extracts and pollen based food supplements, Polycyclic aromatic hydrocarbons (PAH 4) in food supplements containing botanicals and their preparations, or propolius, royal jelly, spirulina, and their preparations. Other available analyses that can be relevant depending on product composition include: Additional microbiological parameters, such as presumptive Bacillus cereus, Mycotoxins, such as aflatoxins, Other plant alkaloids, such as tropane alkaloids and opium alkaloids, Pesticide residues, especially in supplements containing plant-based ingredients, Mineral oil hydrocarbons (MOSH/POSH and MOAH), Dioxins and PCBs, especially in supplements containing marine oils, Verification of the amount of active ingredients, such as vitamins, fatty acids, and amino acids. Contact us for more information.

Measurlabs offers tailor-made analysis packages for unidentified samples. Our experts will formulate the needed analysis package based on the information provided by the customer. The formulated package aims to provide sufficient information to identify the sample components and their quantities. Most typically, the following methods are used to analyze unknown substances: CHNOS elemental analysis and TGA: These methods will provide information on the sample composition, mainly if the sample is organic or inorganic and if it has one or more constituents. XRD, XRF, ICP, and IC: These methods will be used to provide more detailed qualitative and quantitative information on the inorganic constituents of the sample. 1H & 13C NMR, and GC/HPLC-MS: These methods are used to identify and quantify organic constituents. Our whole analysis catalog can be used to analyze the sample if required. Please contact our experts to start building the unknown sample analysis package designed specifically for your needs. Please also note that the stated required sample amount is the preferred amount. Analysis of smaller sample quantities can also be conducted.

Determination of metal concentrations on semiconductors (coated or uncoated wafers) using LA-ICP-MS. The standard analysis package includes the quantification of the following elements: Ca, Cr, Cu, Co, Er, Fe, Ge, Pb, Mn, Mo, Ni, K, Na, Sn, Ti, Ta, Zn, Bi, Au, Sn, V, Sr, and Y. We also offer a 70-element package, where the following elements are quantified; Ag, Al, As, Au, B, Ba, Be, Bi, Br, Ca, Cd, Ce, Co, Cr, Cs, Cu, Dy, Er, Eu Fe, Ga, Gd, Ge, Hf, Hg, Ho, I, In, Ir, K, La, Li, Lu, Mg, Mn, Mo, Na, Nb, Nd, Ni, Os, P, Pb, Pd, Pr, Pt, Rb, Re, Rh, Ru, Sb, Sc, Se, Sm, Sn, Sr, Ta, Tb, Te, Th, Ti, Tl, Tm, U, V, W, Y, Yb, Zn, and Zr. Values will be reported in ppm (μg/g). Analysis of other elements outside of these packages may be possible. Contact us for details.

18O stable isotope analysis of oxygen determines the content of 18O in a given sample material. The results are reported in the VSMOW, ‰-unit. Measurement is conducted with isotope ratio mass spectrometer (IRMS) techniques. The analysis is suitable for various sample materials. The method expert will provide more detailed information about the analysis.

We have various testing services available for ultrapure water. Pricing depends on the selected analyses and the number of samples. Please contact Measurlabs to get an offer. Note that we will provide suitable shipping containers based on the analyses that are ordered. Trace elements by ICP-MS For the determination of elemental impurities, we offer a basic 36-element and an extended 67-element package. The basic package includes the following 36 elements: Li, Be, B, Na, Mg, Al, K, Ca, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Ga, Ge, As, Sr, Zr, Nb, Mo, Ag, Cd, Sn, Sb, Ba, Ta, W, Pt, Au, Tl, Pb, and Bi. The extended analysis includes the following elements in addition to the basic package: Ce, Cs, Dy, Er, Eu, Gd, Hf, Ho, In, Ir, La, Lu, Hg, Nd, Os, Pd, Pr, Re, Rh, Rb, Ru, Sm, Sc, Se, Te, Tb, Th, Tm, U, Yb, and Y. Reporting limits depend on the element and sample matrix, but typically vary between 0.001 ppb and 0.6 ppb. For this analysis, samples must be delivered in Teflon containers. Hardness Hardness value can be calculated based on the ICP-MS results. Silicon and silica (Si, SiO2) Our service catalog includes the determination of total, dissolved, and colloidal silica (SiO2). Total silicon is analyzed using the ICP-OES technique, and dissolved silicon by UV-VIS (molybdenum heteropoly blue method). Colloidal silica is calculated as the difference between total silica and dissolved silica. Total organic and inorganic carbon (TOC and TIC) We offer TOC determination for ultrapure water samples with a 5 ppb quantification limit. For this analysis, samples must be delivered in certified 40 ml TOC vials. Total inorganic carbon (TIC) analysis can also be performed using a TOC analyzer. Anions by ion chromatography (IC) For anions, we have a basic package and a separate package for organic anions. The basic package includes the following anions: bromide(Br⁻), chloride (Cl⁻), fluoride (F⁻), nitrate (NO₃⁻), nitrite (NO₂⁻), phosphate (PO₄³⁻), and sulfate (SO₄²⁻). Analysis of organic anions includes: acetate, formate, glycolate, propionate, and butyrate. Reporting limits depend on the anion and sample matrix, but typically vary between 0.02 and 1 ppb for basic anions and are around 25 ppb for organic anions. For this analysis, samples must be delivered in HDPE bottles. Cations by ion chromatography (IC) The analysis package for cations includes the determination of the following cations: ammonium (NH4+), calcium (Ca2+), lithium (Li+), magnesium (Mg2+), potassium (K+), and sodium (Na+). Reporting limits typically vary between 2 ppb and 5 ppb. Samples must be delivered in HDPE bottles. PFAS compounds (24 compounds) Analysis includes PFOS, PFOA, PFNA, PFHxS, and 20 other selected PFAS compounds. The complete list of compounds can be provided upon request. The reporting limit of the results is typically 1 ng/L. The sample must be delivered in a plastic PFAS-free bottle, preferably made from HDPE.