王秀娜   

Senior Engineer

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Paper Publications

Title of Paper:有机胺对磺酸盐染料的ESI-MS的影响

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Date of Publication:2001-08-01

Page Number:233-234

Key Words:有机胺;磺酸盐染料;电喷雾电离;质谱分析

Abstract:由于磺酸染料极性大、难挥发、又不易提纯,常规质谱分析比较困难.虽然电喷雾质谱已成功地解决了上述问题,但由于碱金属离子影响信号强度,样品需要脱盐处理或与色谱联用.近年P.S.Slater等报道了在磺酸溶液中加入有机胺可大幅度提高负离子的信号强度.本文对有机胺与磺酸染料形成加和离子的影响因素及作用机理进行了探讨.

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