发明名称 |
METHOD FOR MEASURING THE CONCENTRATION OF WATER IN ARGON, HYDROGEN, NITROGEN AND HELIUM BY MEANS OF IONIZATION MOBILITY SPECTROMETRY |
摘要 |
A method for measuring by means of ionization mobility spectrometry relatively high concentrations of water in argon, hydrogen, nitrogen and helium, characterized by comprising the followings operative steps: -introducing the gas to be analyzed into an IMS instrument (10) with a counter- flow ofpure gas; -obtaining a signal (19) variable during the time and proportional to the number of ions detected by an ion detector (14) of the IMS instrument (10); -determining two time intervals (A, B) corresponding to the drift times in the IMS instrument (10) of the H30<+> and (H20)2<+> ions; -obtaining the peaks of said signal (19) in the two determined time intervals (A, B); -calculating the water concentration in the gas to be analyzed according to the 15 ratio between the intensity of the two peaks obtained in the signal (19). |
申请公布号 |
WO02099405(A2) |
申请公布日期 |
2002.12.12 |
申请号 |
WO2002IT00370 |
申请日期 |
2002.06.05 |
申请人 |
SAES GETTERS S.P.A.;PUSTERLA, LUCA;BONUCCI, ANTONIO;SUCCI, MARCO;STIMAC, ROBERT |
发明人 |
PUSTERLA, LUCA;BONUCCI, ANTONIO;SUCCI, MARCO;STIMAC, ROBERT |
分类号 |
G01N1/00;G01N27/64;G01N31/00;H01J49/40 |
主分类号 |
G01N1/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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