发明名称 |
METHOD OF IMPROVING SIGNAL-TO-NOISE FOR QUANTITATION BY MASS SPECTROMETRY |
摘要 |
Selectivity of a measurement from a mass spectrometer is improved by selecting an extracted ion current window for the measurement after data acquisition. A plurality of mass spectra are acquired over a period of time. A first extracted ion current window is selected and from the plurality of mass spectra a first intensity as a function of time is calculated for an ion using the first extracted ion current window. A second extracted ion current window is selected and from the plurality of mass spectra a second intensity as a function of time is calculated for the ion using the second extracted ion current window. A first signal-to-noise ratio of the first intensity is compared with a second signal-to-noise ratio of the second intensity. If the second signal-to-noise ratio is greater than the first signal-to-noise ratio, the second intensity as a function of time is used for the measurement.
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申请公布号 |
CA2713085(A1) |
申请公布日期 |
2009.08.27 |
申请号 |
CA20092713085 |
申请日期 |
2009.02.18 |
申请人 |
MDS ANALYTICAL TECHNOLOGIES, A BUSINESS UNIT OF MDS INC.;APPLIED BIOSYSTEMS (CANADA) LIMITED |
发明人 |
THOMSON, BRUCE A.;LE BLANC, YVES |
分类号 |
B01D59/44;H01J49/00 |
主分类号 |
B01D59/44 |
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