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离子富集脉冲电源对提高飞行时间质谱仪灵敏度的影响

Journal of Instrumental Analysis(2014)

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Abstract
研究自制离子富集脉冲电源对飞行时间质谱仪灵敏度的提高效果。离子富集脉冲电源包括脉冲信号产生模块、放大隔离模块、开关驱动模块、高压电路模块和负载阻抗匹配模块,输出一路中压脉冲信号,两路对称高压脉冲信号。利用自制电喷雾电离源及激光解析电离源与飞行时间质谱仪联用,调试中压脉冲信号。结果显示,应用离子富集脉冲电源后仪器对不同样品的检测灵敏度可提高6~24倍。
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sensitivity,ion enrichment pulse power,time-of-flight mass spectrometer( TOF MS)
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