CHNOS stable isotope analysis in solid samples

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.

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 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.

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 elemental impurities in pyrolysis oil by microwave digestion (in-house method) followed by ICP-OES analysis according to EN ISO 11885.  The following elements are quantified after microwave digestion: Al, Ag, As, B, Ba, Be, Bi, Ca, Cd, Co, Cr, Cu, Fe, K, Li, Mg, Mn, Mo, Na, Ni, Pb, Sb, Se, Sr, Ti, Tl, V, Zn, S, Si, and P. Results are reported in mg/kg. The displayed price applies to small sample sets; larger batches and recurring orders are eligible for volume discounts.

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.

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, Rb, Re, S, Sb, Sc, Se, Sn, Sr, Ta, Te, Th, Ti, Tl, U, V, W, Y, Zn, and Zr. 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 is 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.

Determination of total halogen content (F, Cl, Br) in aromatic hydrocarbon matrices such as pyrolysis oil and other petroleum products, where halogen impurities can affect catalyst performance, corrosion risk, and downstream processing. Testing is conducted according to EN 15408, or DIN 51727, with the most suitable method selected based on the sample matrix and expected concentration levels. All methods are based on oxygen combustion followed by detection using ion chromatography or other suitable analytical techniques. The typical reporting range is between 10 and 2000 mg/kg per element. The displayed price applies to small sample sets. Please specify the number of samples when requesting a quote, as volume discounts are available for larger batches.

Analysis of gaseous samples using Raman spectroscopy.

Analysis package for black liquor and pulp mill process liquids, covering the following parameters: Parameter Method Dry matter content SCAN-N 22 Carbonate SCAN-N 32 Dissolved calcium (Ca) In-house Sodium (Na) SCAN-N 38 Results are reported in mg/kg dry basis or mg/L. Please note that a sample destruction fee will be applied to smelly or otherwise hazardous samples. The displayed price applies to small sample sets; large batches are eligible for discounts.