A fast, simple calibration method for organic carbon isotope analysis using continuous-flow elemental analyzer interfaced with an isotope ratio mass spectrometer.
Continuous flow analysis using an elemental analyzer interfaced with an isotope ratio mass spectrometer (EA-IRMS) is faster and requires much less material than conventional analytical methods. Although using an EA-IRMS is simple and fast, accurate calibration strongly depends on matching sample and reference peak heights by adjusting the sample weight. This paper describes a new modification for calibration using only the major ion beam intensity (nA) without weighing each sample or increasing the number of reference materials.
Bong
Yeon-Sik
YS
Division of Isotope Geoscience, Korea Basic Science Institute, 52 Eoeun-dong, Yusung-gu, Daejeon 305-333, Korea.
Lee
Kwang-Sik
KS
D002138:Calibration; D002247:Carbon Isotopes / Q000032:analysis*; D019015:Geologic Sediments / Q000032:analysis; D007202:Indicators and Reagents; D013058:Mass Spectrometry / Q000379:methods* / Q000592:standards; D009930:Organic Chemicals / Q000032:analysis*; D012015:Reference Standards
D002247:Carbon Isotopes; D007202:Indicators and Reagents; D009930:Organic Chemicals