DETERMINATION OF 15N ABUNDANCE IN AMMONIUM BY USING A NEW KIND OF MASS SPECTROMETRIC IONIZATION METHOD

DETERMINATION OF 15N ABUNDANCE IN AMMONIUM BY USING A NEW KIND OF MASS SPECTROMETRIC IONIZATION METHOD

Ⅰ. INTRODUCTIONThe stable isotope label method has an important application in the fields of agriculture, biology, medical science or the like. The various label substances made by 15N stable isotope can show the metabolism of each tissue within living body. The determination of stable isotope abund...

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Veröffentlicht in:中国科学通报：英文版 1990 (10), p.825-829
1. Verfasser: 黄庆文 张旭 荣维民
Format: Artikel
Sprache:eng
Schlagworte:
15N
abundance
analysis
direct
ion
mass
spectrometer
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Zusammenfassung:Ⅰ. INTRODUCTIONThe stable isotope label method has an important application in the fields of agriculture, biology, medical science or the like. The various label substances made by 15N stable isotope can show the metabolism of each tissue within living body. The determination of stable isotope abundance is the key of this method. The classical analysis of 15N abundance in ammonium is first to change the sample into N2 gas by chemical reaction, then to measure
ISSN:2095-9273