发明名称 |
Ion mobility spectrometers with improved resolution |
摘要 |
An apparatus is provided for detecting whether substances of interest are present in a sample of air. The apparatus includes a detector, such as an ion trap mobility spectrometer. The detector is operated at a high drift voltage and then is switched to a low drift voltage. Spectra are collected at the high and low field strengths and are compared with standard spectra at those strengths to determine whether materials of interest are present.
|
申请公布号 |
US6831273(B2) |
申请公布日期 |
2004.12.14 |
申请号 |
US20030628753 |
申请日期 |
2003.07.28 |
申请人 |
GENERAL ELECTRIC COMPANY |
发明人 |
JENKINS ANTHONY;MCGANN WILLIAM J. |
分类号 |
G01N27/64;(IPC1-7):H01J49/40 |
主分类号 |
G01N27/64 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|