Total fluorine in natural- and biogas

Analysis of gaseous samples using Raman spectroscopy.

Our δ13C stable isotope analysis determines the ratio of 13C to 12C 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. We have more than 30 IAEA, USGS, and in-house isotopic standards available to accommodate a wide range of expected ratios. The price and turnaround time displayed apply to conventional sample matrices. The analysis is suitable for a wide range of sample materials, including, but not limited to, those listed in the table below. All of our stable isotope analyses are conducted at ISO 17025-accredited facilities. Please contact us using the form below to arrange testing on your samples.

Determination of the hydrogen sulfide (H₂S) content of natural gas or biogas samples. The analysis is conducted with µGC-µTCD equipment. Please contact Measurlabs experts to check the suitability of other sample vessels for 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 nitrogen content in pyrolysis oil and other liquid, particle-free petroleum samples by oxidative combustion and chemiluminescence detection (ASTM D5762). Results are reported in mg/kg over a measurement range of 40–5000 mg/kg, with a limit of quantification (LOQ) of 0.5 mg/kg. Nitrogen-containing compounds affect downstream upgrading, catalyst performance, and emissions, making nitrogen content a relevant parameter for both process development and quality control. 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.

Standard EN 228 outlines the testing requirements and methods for gasoline quality testing. The following tests are included in the package: Standard Parameter Requirements EN ISO 5164 RON Min. 95 EN ISO 5163 MON Min. 85 EN 237 Lead content Max. 5 mg/l EN ISO 12185 Density at 15 °C 720–775 kg/m3 EN ISO 20846 Sulfur content Max. 10 mg/kg EN 16136 Manganese content Max. 2 mg/l EN ISO 7536 Oxidation stability Min. 360 minutes EN ISO 6246 Washed gum content Max. 5 mg/100ml EN ISO 2160 Copper corrosion Class 1 ASTM D4176 Appearance Bright and clear EN ISO 22854 Hydrocarbon composition Benzene max. 1 v%, aromatics max. 35 v%, olefins max. 18 v%, oxygenates* EN 13016-1 Vapor pressure at 37.8 °C (DVPE) Depends on volatility class** EN ISO 3405 Distillation characteristics Final boiling point max. 210 °C, distillation residue max. 2 v%, evaporated volumes*** * For gasoline with max. 3.7 m% of oxygen, allowed oxygenate contents are methanol 3 v%, ethanol 10 v%, iso-propanol 12 v%, iso-butanol 15 v%, tert-butanol 15 v%, ethers with five or more carbon atoms 22 v%, and other oxygenates 15 v%. For gasoline with max. 2.7 m% of oxygen, allowed oxygenate contents are methanol 3 v% and ethanol 5 v%. ** For volatility class A: 45–60 kPa, B: 45–70 kPa, C: 50–80 kPa, D: 60–90 kPa, E: 65–95 kPa, and F: 70–100 kPa *** Percentage evaporated at 70 °C (E70): winter 22–50 v%, summer 22–48 v%, at 100 °C (E100): 46–71 v%, and at 150 °C (E150): min. 75 v%

BTEX analysis of natural gas and biogas samples with an in-house GC-MS method. The analysis includes the following substances, with results reported in the V-% unit (typical LOQs in parentheses): Benzene (10 ppm-vol), Toluene (10 ppm-vol), Ethylbenzene (10 ppm-vol), Sum of xylenes (10 ppm-vol). Please note that gas samples must be collected in multifoil bags (2 L), and the safety data sheet (SDS) must be provided with the shipment.

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.

Diene value analysis for pyrolysis oil to determine the concentration of reactive diene compounds that can accelerate polymerization and gum formation, affecting product stability and downstream process performance. The analysis is performed in accordance with the UOP 326 standard, which is widely applied to diene value determination in petroleum- and pyrolysis-derived oil matrices. The sample is reacted with maleic anhydride, and the diene content is determined by back-titration of the unreacted anhydride. Results are reported in g/100 g. Typical applications include process control, feedstock qualification, and specification setting prior to hydrotreatment, blending, or other upgrading steps. The results can also be used to compare pyrolysis conditions and monitor batch-to-batch variation. 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.

Determination of total chemically bound oxygen in pyrolysis oil, gasoline, and other petroleum products. The analysis is conducted using a reductive pyrolysis method specified in the ASTM D5622 standard, and the results are reported as the mass percent (%) of oxygen in the sample. Typical applications of the test include refinery and terminal quality control, oxygenate blending verification, and regulatory compliance testing. Applicable limits include 2.7–3.7% (m/m) under EN 228 and 2.0–2.7 wt% under US EPA requirements. The displayed price applies to small sample sets, while larger batches and recurring orders are eligible for discounted pricing. Please request an offer from our experts using the form below.