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Method and apparatus for ionizing a sample under atmospheric pressure and selectively introducing ions into a mass analysis region
Method and apparatus for ionizing a sample under atmospheric pressure and selectively introducing ions into a mass analysis region
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机译:在大气压力下电离样品并将离子选择性引入质量分析区域的方法和设备
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摘要
A method in which cutting of small droplets, neutral particles or photons through to a slit provided between a differential pumping portion and a mass analysis portion is combined with slight deflection of ions just before introduction of the ions into the mass analysis portion so that noises are greatly reduced without reduction of signals to thereby improve the signal-to-noise ratio which is an index of detecting sensitivity or lower limit.
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