A New Design for High Sensitive Analysis of Gaschromatograph-Quadrupole Mass Spectrometer

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概要

• 論文の詳細を見る

• In an analytical system of the gaschromatograph-quadrupole mass spectrometer, a total ion monitor was designed in which a simple modification was made to an electronics of the quadrupole mass spectrometer. It's performance was studied and discussed. The amount of 5×10<SUP>-11</SUP> g was detectable for methyl stearate. This method could be a promising potential as a new, sensitive and universal GC detector. The effect of helium on the sensitivity of the mass spectrometer, in the other hand, was strict for the high sensitive GC/MS analysis. Ion space charge caused by helium was discussed. It is necessary to select the optimum value of the electron energy for the high detection sensitivity in the condition of the partial pressure of helium in the mass spectrometer.

• 日本質量分析学会の論文

著者

• Fujii Toshihiro

  Division of Chemistry and Physics, National Institute for Environmental Studies

• FUJII TOSHIHIRO

  Division of Chemistry and Physics, National Institute for Environmental Studies, Yatabe

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