| 摘要 |
A mass spectrometer and a liquid chromatography system for a mass spectrometer is disclosed. In a peak parking mode of operation solvent from A and B solvent pumps 9, 10 is immediately diverted to waste reducing the backpressure on an analytical column 21 . Analyte of interest is then allowed to be released from the column 21 at a slower rate by passing fluid from a separate pump 1 through the column 21.
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