Determination of the natural abundance δ15 N of taurine by gas chromatography-isotope ratio measurement mass spectrometry

2010 ◽  
Vol 24 (23) ◽  
pp. 3380-3386 ◽  
Author(s):  
Illa Tea ◽  
Ingrid Antheaume ◽  
Jorick Besnard ◽  
Richard J. Robins
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Isotope Ratio ◽  
Natural Abundance ◽  
Isotope Ratio Measurement ◽  
Ratio Measurement

Determination of the natural abundance δ15N of nortropane alkaloids by gas chromatography–isotope ratio mass spectrometry of their ethylcarbamate esters

2009 ◽  
Vol 396 (4) ◽  
pp. 1405-1414 ◽  
Author(s):  
Katarzyna Kosieradzka ◽  
Illa Tea ◽  
Emmanuel Gentil ◽  
Richard J. Robins
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Isotope Ratio ◽  
Isotope Ratio Mass Spectrometry ◽  
Natural Abundance

Determination of the natural abundance δ15N of nicotine and related alkaloids by gas chromatography/isotope ratio mass spectrometry

2005 ◽  
Vol 19 (14) ◽  
pp. 2039-2044 ◽  
Author(s):  
Roland Molinié ◽  
Véronique Ferchaud-Roucher ◽  
Jacques Lebreton ◽  
Richard J. Robins
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Isotope Ratio ◽  
Isotope Ratio Mass Spectrometry ◽  
Natural Abundance

Isotope Ratio Measurement of Uranium in Safeguards Environmental Samples by Inductively-Coupled Plasma Mass Spectrometry (ICP-MS)

2002 ◽  
Vol 39 (4) ◽  
pp. 308-311 ◽  
Author(s):  
Masaaki MAGARA ◽  
Takaaki SAKAKIBARA ◽  
Setsumi KUROSAWA ◽  
Masato TAKAHASHI ◽  
Satoshi SAKURAI ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Environmental Samples ◽  
Inductively Coupled Plasma ◽  
Isotope Ratio ◽  
Isotope Ratio Measurement ◽  
Ratio Measurement ◽  
Inductively Coupled ◽  
Icp Ms ◽  
Plasma Mass Spectrometry

Determination of (13C)urea enrichment by gas chromatography/mass spectrometry and gas chromatography/isotope ratio mass spectrometry

1994 ◽  
Vol 23 (8) ◽  
pp. 510-513 ◽  
Author(s):  
Michel Beylot ◽  
France David ◽  
Yadh Khalfallah ◽  
Sylvie Normand ◽  
Valerie Large ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Isotope Ratio ◽  
Isotope Ratio Mass Spectrometry ◽  
Gas Chromatography Mass Spectrometry ◽  
Chromatography Mass Spectrometry

scholarly journals Method for the determination of concentration and stable carbon isotope ratios of atmospheric phenols

2013 ◽  
Vol 6 (11) ◽  
pp. 2965-2974 ◽  
Author(s):  
M. Saccon ◽  
R. Busca ◽  
C. Facca ◽  
L. Huang ◽  
S. Irei ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Isotopic Composition ◽  
Isotope Ratio ◽  
Extraction Procedure ◽  
Carbon Isotopic Composition ◽  
Stable Carbon ◽  
Concentration Measurements ◽  
Isotope Ratio Measurements

Abstract. A method for the determination of the stable carbon isotopic composition of atmospheric nitrophenols in the gas and particulate phases is presented. It has been proposed to use the combination of concentration and isotope ratio measurements of precursor and product to test the applicability of results of laboratory studies to the atmosphere. Nitrophenols are suspected to be secondary products formed specifically from the photooxidation of volatile organic compounds. XAD-4TM resin was used as an adsorbent on quartz filters to sample ambient phenols using conventional high volume air samplers at York University in Toronto, Canada. Filters were extracted in acetonitrile, with a HPLC (high-performance liquid chromatography) clean-up step and a solid phase extraction step prior to derivatization with BSTFA (bis(trimethylsilyl) trifluoroacetamide). Concentration measurements were done with gas chromatography–mass spectrometry and gas chromatography–isotope ratio mass spectrometry was used for isotope ratio analysis. The technique presented allows for atmospheric compound-specific isotopic composition measurements for five semi-volatile phenols with an estimated accuracy of 0.3–0.5‰ at atmospheric concentrations exceeding 0.1 ng m−3 while the detection limits for concentration measurements are in the pg m−3 range. Isotopic fractionation throughout the entire extraction procedure and analysis was proven to be below the precision of the isotope ratio measurements. The method was tested by conducting ambient measurements from September to December 2011.

Determination of the exogenous character of testosterone in bovine urine by gas chromatography-combustion-isotope ratio mass spectrometry†

The Analyst ◽  
1998 ◽  
Vol 123 (12) ◽  
pp. 2617-2620 ◽  
Author(s):  
Véronique Ferchaud ◽  
Bruno Le Bizec ◽  
Fabrice Monteau ◽  
François André
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Isotope Ratio ◽  
Isotope Ratio Mass Spectrometry ◽  
Bovine Urine
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