Rubidium sulfate-ammonium sulfate solid solution: a standard for use during the determination of nitrogen abundance and isotopic composition at the ppm level by static-vacuum mass spectrometry

1991 ◽  
Vol 63 (13) ◽  
pp. 1332-1335 ◽  
Author(s):  
Stuart R. Boyd ◽  
C. T. Pillinger
Keyword(s):  
Mass Spectrometry ◽  
Solid Solution ◽  
Isotopic Composition ◽  
Ammonium Sulfate ◽  
Static Vacuum ◽  
Nitrogen Abundance ◽  
Rubidium Sulfate ◽  
Ppm Level

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.

Mass spectrometry determination of the isotopic composition of uranium hexafluoride

2011 ◽  
Vol 66 (14) ◽  
pp. 1385-1391 ◽  
Author(s):  
A. V. Saprygin ◽  
O. V. Elistratov ◽  
V. A. Kalashnikov ◽  
I. S. Kulik ◽  
I. A. Rodichev
Keyword(s):  
Mass Spectrometry ◽  
Isotopic Composition ◽  
Uranium Hexafluoride

An analytical method for precise determination of the cadmium isotopic composition in plant samples using multiple collector inductively coupled plasma mass spectrometry

2015 ◽  
Vol 7 (6) ◽  
pp. 2479-2487 ◽  
Author(s):  
Rongfei Wei ◽  
Qingjun Guo ◽  
Hanjie Wen ◽  
Junxing Yang ◽  
Marc Peters ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Isotopic Composition ◽  
Analytical Method ◽  
Inductively Coupled Plasma ◽  
Isotope Ratios ◽  
Precise Determination ◽  
Inductively Coupled ◽  
Plant Samples ◽  
Plasma Mass Spectrometry

Three-isotope plots of Cd isotope ratios in plant samples and Cd standard materials are presented in this study.

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