Total chlorine in natural- and biogas

Analysis of gaseous samples using Raman spectroscopy.

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. 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.

Qualitative identification of chemical groups in solid samples by Attenuated total reflectance Fourier-transform infrared spectroscopy (ATR-FTIR). Results will be delivered as an FTIR spectrum. In addition, a comparison to an FTIR library will be provided. The method is not quantitative, but it can be used to identify the main chemical components of the sample.

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 (1,000 °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 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 addition of ash, drying, and dry loss measurements will increase the minimum required sample material 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.

Determination of selected volatile organic compounds (VOC) in water using the GC-MS and GC-FID techniques. Analysis can be conducted according to the following standard methods: EPA 624, EPA 5021A, EPA 8260, EPA 8015, EN ISO 10301, ISO 11423-1, and EN ISO 15680 The results of the analysis are reported in µg/L. Analysis includes the following analytes: Analyte: Reporting limits: chloromethane 1 µg/l bromomethane 1 µg/l dichloromethane 0.1 µg/l dibromimetaani 1 µg/l bromochloromethane 2 µg/l trichloromethane (chloroform) 0.1 µg/l tribromomethane (bromoform) 0.2 µg/l bromodichloromethane 0.1 µg/l dibromochloromethane 0.1 µg/l sum 4 trihalometanit 0.5 µg/l tetrachloromethane 0.1 µg/l trichlorofluoromethane 1 µg/l dichlorodifluoromethane 1 µg/l monochloroethane 1 µg/l 1,1-dichloroethane 0.1 µg/l 1,2-dichloroethane 0.1 µg/l 1,2-dibromietaani 0.5 µg/l 1,1,1-trichloroethane 0.1 µg/l 1,1,2-trichloroethane 0.1 µg/l 1,1,1,2-tetrachloroethane 0.1 µg/l 1,1,2,2-tetrachloroethane 1 µg/l vinyl chloride 0.1 µg/l 1,1-dichloroethene 0.1 µg/l cis-1,2-dichloroethene 0.1 µg/l trans-1,2-dichloroethene 0.1 µg/l amount of 1,2-dichloroethene 0.2 µg/l trichloroethylene 0.1 µg/l sum of 11 chlorinated hydrocarbons 1.1 µg/l tetrachloroethene 0.1 µg/l Sum of trichloroethylene and tetrachloroethylene 0.2 µg/l sum 5 chlorinated ethylenes 0.5 µg/l 1,2-dichloropropane 1 µg/l 1,3-dichloropropane 1 µg/l 2,2-dichloropropane 1 µg/l 1,2,3-trichloropropane 1 µg/l 1,2-dibromo-3-chloropropane 1 µg/l 1,1-dichloro-1-propene 1 µg/l cis-1,3-dichloro-1-propene 1 µg/l trans-1,3-dichloropropene 1 µg/l hexachlorobutadiene 1 µg/l 2-chlorotoluene 1 µg/l 4-chlorotoluene 1 µg/l monochlorobenzene 0.1 µg/l bromobenzene 1 µg/l 1,2-dichlorobenzene 0.1 µg/l 1,3-dichlorobenzene 0.1 µg/l 1,4-dichlorobenzene 0.1 µg/l amount of 3 dichlorobenzene 0.3 µg/l 1,2,3-trichlorobenzene 0.1 µg/l 1,2,4- trichlorobenzene 0.1 µg/l 1,3,5-trichlorobenzene 0.1 µg/l amount of 3 trichlorobenzene 0.4 µg/l benzene 0.1 µg/l toluene 0.5 µg/l ethylbenzene 0.1 µg/l o-xylene 0.1 µg/l m/p-xylene 0.2 µg/l sum of xylenes 0.3 µg/l sum of BTEX 1 µg/l styrene 0.2 µg/l isopropylbenzene 1 µg/l n-propylbenzene 1 µg/l 1,2,4-trimethylbenzene 1 µg/l 1,3,5-trimethylbenzene 1 µg/l n-butylbenzene 1 µg/l sec-butylbenzene 1 µg/l tert-butylbenzene 1 µg/l p-isopropyltoluene 1 µg/l naphthalene 1 µg/l Diisopropyl ether (DIPE) 0.6 µg/l ETBE (ethyl tert-butyl ether) 0.2 µg/l MTBE (methyl tert-butyl ether) 0.2 µg/l tert-amyl ethyl ether (TAEE) 0.2 µg/l TAME 0.2 µg/l tert-butyl alcohol (TBA) 5 µg/l ethanol 100 µg/l A customized offer can also be prepared if you are interested in analyzing only individual compounds from a sample. Suitable sample containers for analysis can be ordered through us. Sample containers picked up from Measurlabs are included in the price of the analysis, but sample containers can also be shipped to the customer for a separate fee.

This analysis provides quantitative information about the crystalline and amorphous phases within your sample using high-resolution synchrotron X-ray diffraction (XRD). A standard analysis includes: Quantification of crystalline phases as weight percentages, Quantification of the total amorphous content, High-resolution powder diffraction data and the resulting diffractogram, A comprehensive test report detailing the findings. For more advanced needs, we also offer total scattering/pair distribution function (PDF) analysis to reveal the local atomic structure in amorphous or nano-structured materials. Do not hesitate to ask for a quote.

Determination of biobased carbon content in plastics and plastic additives by accelerator mass spectrometry (AMS) according to ISO 16620-2. The method applies to monomers, polymers, polymer resins, plasticizers, and additives containing any combination of biobased and fossil-based carbon. Results are reported as biobased carbon content (%) relative to total carbon (TC), derived from the measured percent modern carbon (pMC) value. The data can be used to support biobased carbon content declarations under ISO 16620-5. ISO 16620-2 is almost identical to the European EN 16640 standard and technically similar to ASTM D6866. All three are based on the radiocarbon (¹⁴C) method, which allows unambiguous quantification of biobased carbon content without prior knowledge of the production process. However, ASTM D6866 is broader in scope, as it applies to a wide range of solid, liquid, and gaseous matrices, while ISO 16620-2 is specific to plastics. The displayed price applies to non-volatile samples. If your sample is volatile, please discuss the testing options with our experts. Please also note that we cannot accept samples that contain artificial carbon-12, carbon-13, or carbon-14 isotopes because they will damage the equipment.

This ash content test is conducted according to ASTM D482 or EN ISO 6245, and is typically used for pyrolysis oil, fuels, crude oils, lubricating oils, waxes, and related petroleum matrices where ash-forming material is considered an undesirable impurity. In the test, the sample is ignited under controlled laboratory conditions at 775 °C, and the remaining ash residue is determined gravimetrically. Results are reported as numerical values in w%, with a typical quantification limit of 0.001 w%.  Both ASTM D482 and EN ISO 6245 are generally applicable in the approximate ash range of 0.001 to 0.180 w% for petroleum products that do not contain intentional ash-forming additives; products with such additives may require a different method. Please note that the displayed price applies to small sample sets, while larger batches and recurring orders are eligible for volume-based discounts.

Karl Fischer titration is a classic titration method in chemical analysis that uses coulometric or volumetric titration to determine trace amounts of water in a sample. This analysis is conducted according to ASTM D6304, EN ISO 12937, or DIN 51777 Verfahren A, with the method selected based on sample suitability. Results are reported as numerical values in mg/kg. The test is best suited for petroleum products and pyrolysis oils with a final boiling point below 390 °C, although samples with a higher boiling point can also be analyzed. Please note that aldehydes and/or ketones in the sample may cause interferences in the KF titration. If the sample material includes these substances, please notify us upon requesting an offer.

With this analysis, the volatile organic compounds (VOCs) present in a biogas sample can be quantified. Typically, the boiling range of the detected VOCs is 60-280 °C, but lighter hydrocarbons are also quantified and identified. The analysis employs a GC-MS method (typically TD-GC-MS) and utilizes external standard materials and mass-spectrum libraries to identify and quantify the compounds. The analysis results will be reported in the V-% unit. Price includes the quantification (in toluene equivalents) and identification of the 30 major peaks from the chromatogram (substances up to 280 °C boiling point). Samples must be delivered in gas sampling bags (2 liters in volume), and the safety data sheet (SDS) must be provided with the samples.