connected to IRMS DELTA plus, Thermo Scientific.
Standard analysis:
δ13C and δ18O determination in mono-carbonate samples.
Method PDF >>
with autosampler and NO BLANK system connected to IRMS DELTA V Advantage, Thermo Scientific.
Standard analysis:
δ13C and δ15N determination in organic and inorganic solid samples
δ18O determination in BaSO4 and Ag3PO4
δ34S determination in BaSO4 and Ag2S
Method PDF >>
with autosampler Combi PAL connected to IRMS MAT 253, Thermo Scientific.
Standard analysis:
δ13C determination of inorganic carbon in water (DIC)
δ18O determination in water
Determination of δ13C and δ18O in mono-carbonate samples.
Method PDF >>
with IsoLink GC Thermo Scientific connected to IRMS MAT 253, Thermo Scientific.
Standard analysis:
Stable isotopic composition of N, C , O and H in all compounds separated by columns:
Rt Q Bond length 30 m diamater 0,32 mm, Film 10 µm;
DB 5 lenght 30 m diameter 0,25 mm, Film 0,25 µm;
ZB 5 MS lenght 60 m diameter 0,25 mm, Film 0,25 µm
connected to IRMS MAT 253, Thermo Scientific.
Standard analysis:
δ2H determination in water
Method PDF >>
KIEL IV Carbonate Device
Oxygen and carbon isotopes in carbonates
Stable isotopic composition of oxygen and carbon in carbonates is determined using a Thermo KIEL IV Carbonate Device connected to a Finnigan Delta Plus isotope ratio mass spectrometer in a Dual Inlet system. CO2 is extracted from carbonates using the method described by McCrea (1950). Sample (minimum weight 20 µg) is reacted with orthophosphoric acid (density 1.94 g/dm3) at 70 °C. International standard NBS 19 is analyzed per every ten samples. Isotope ratios are reported as delta (δ) values and expressed relative to VPDB standard.
Measurement precision:
Standard deviation (1σ) δ13C ± 0.03‰
Standard deviation (1σ) δ18O ± 0.07‰
McCrea, J.M. (1950): The isotopic chemistry of carbonates and a paleo-temperature scale. J. Chem. Phys. 18: 849-857.
Flash EA 1112HT
Nitrogen and carbon isotopes in organic and inorganic solid samples
Stable isotopic composition of nitrogen and carbon is determined using a Thermo Flash EA 1112HT elemental analyzer connected to a Thermo Delta V Advantage isotope ratio mass spectrometer in a Continuous Flow system. Minimal weight of samples depends on the wt% amount of both elements. Samples wrapped in tin capsules are combusted at 1020 °C. Released gases (CO2 and N2 ) split in a GC column are transferred to MS source through a capillary. Isotope ratios are reported as delta (δ) values and expressed relative to VPDB for δ13C and to atmospheric nitrogen for δ15N. Delta values are normalized to a calibration curve based on international standards USGS 40, USGS 41, IAEA 600.
Measurement precision:
Standard deviation (1σ) δ13C ± 0.33‰
Standard deviation (1σ) δ15N ± 0.43‰
Oxygen isotopes in phosphates
Stable isotope composition of oxygen in phosphates is determined using a Thermo Flash EA 1112HT elemental analyzer connected to a Thermo Delta V Advantage isotope ratio mass spectrometer in a Continuous Flow system. The minimal weight of sample is ca. 400 µg. Samples wrapped in silver capsules are pyrolyzed at 1450 °C. Released gas (CO) is transferred to MS source through a capillary. Isotope ratios are reported as delta (δ) values and expressed relative to VSMOW. Delta values are normalized to a calibration curve based on internal standards UMCS 1, UMCS 2 and international standard B 2207.
Measurement precision:
Standard deviation (1σ) δ18O ± 0.3‰
Sulfur isotopes in sulfates
Stable isotopic composition of sulfur in sulfates is determined using a Thermo Flash EA 1112HT elemental analyzer connected to a Thermo Delta V Advantage isotope ratio mass spectrometer in a Continuous Flow system. The minimal weight of sample is ca. 400 µg plus 10-fold quantity of V2O5. Samples wrapped in tin capsules are combusted at 1020 °C. Released gas (SO2) is transferred to MS source through a capillary. Isotope ratio is reported as delta (δ) values and expressed relative to VCDT. Delta values are normalized to a calibration curve based on international standards NBS 127, IAEA SO-5, IAEA SO-6.
Measurement precision:
Standard deviation (1σ) δ34S ± 0.3‰
Oxygen isotopes in sulfates
Stable isotopic composition of oxygen in sulfates is determined using a Thermo Flash EA 1112HT elemental analyzer connected to a Thermo Delta V Advantage isotope ratio mass spectrometer in a Continuous Flow system. The minimal weight of sample is ca. 400 µg. Samples wrapped in silver capsules are pyrolyzed at 1450 °C. Released gas (CO) is transferred to MS source through a capillary. Isotope ratios are reported as delta (δ) values and expressed relative to VSMOW. Delta values are normalized to a calibration curve based on international standards NBS 127, IAEA SO-5, IAEA SO-6.
Measurement precision:
Standard deviation (1σ) δ18O ± 0.5‰
Sulfur isotopes in sulfides
Stable isotopic composition of sulfur in sulfides is determined using a Thermo Flash EA 1112HT elemental analyzer connected to a Thermo Delta V Advantage isotope ratio mass spectrometer in a Continuous Flow system. The minimal weight of sample is ca. 400 µg plus 10-fold quantity of V2O5. Samples wrapped in tin capsules are combusted at 1020 °C. Released gas (SO2) is transferred to MS source through a capillary. Isotope ratios are reported as delta (δ) values and expressed relative to VCDT. Delta values are normalized to a calibration curve based on international standards IAEA S-1, IAEA S-2, IAEA S-3.
Measurement precision:
Standard deviation (1σ) δ34S ± 0.2‰
GasBench II
Isotopic composition of Dissolved Inorganic Carbon in water
Stable isotopic composition of Dissolved Inorganic Carbon in water is determined using a Thermo GasBench II connected to a Thermo MAT 253 isotope ratio mass spectrometer in a Continuous Flow system. 0,8 ml of sample is equilibrated during 18 hours at 70 °C prior to analysis. Isotope ratios are reported as delta (δ) values and expressed relative to VPDB for δ13C. Delta values are normalized to a calibration curve based on international standards NBS 19, NBS 18, LSVEC.
Measurement precision:
Standard deviation (1σ) δ13C ± 0.2‰
Oxygen isotopes in water
Isotopic composition of oxygen in water is determined using a Thermo GasBench II connected to a Thermo MAT 253 isotope ratio mass spectrometer in a Continuous Flow system. 0.5 ml of sample is equilibrated during 18 hours at 32 °C prior to analysis. Isotope ratios are reported as delta (δ) values and expressed relative to VSMOW for δ18O. Delta values are normalized to a calibration curve based on standards GISP, W6444, W 67400.
Measurement precision:
Standard deviation (1σ) δ18O ± 0.25‰
HDevice
Hydrogen isotopes in water
Stable isotopic composition of hydrogen in water is determined using a Thermo HDevice connected to a Thermo MAT 253 isotope ratio mass spectrometer in a Dual Inlet system. 1,2 µl of sample is reduced in chromium reactor at 850 °C prior to analysis. Isotope ratios are reported as delta (δ) values and expressed relative to VSMOW for δ2H. Delta values are normalized to a calibration curve based on standards GISP, W6444, W 67400. H3+ factor is determined every sequence run.
Measurement precision:
Standard deviation (1σ) δ2H ± 1‰
Spectrophotometer UV-VIS DR 6000 with RFID (Hach) technology
Chemical composition of water
For measurement of the total concentration of chlorides, sulphates, nitrates, nitrites, phosphates, organic acids, chromium, aluminum and others in water samples.
PICARRO (CRDS) analyzer
CH4 and CO2 in gas
Measurement of the total concentration and C stable isotope composition of CH4 and CO2 in a continuous mode (monitoring) or in samples with CO2 concentration in a range of 200-4000 ppm and CH4 concentration in a range of 1,2-2000 ppm; can be used in field.
