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ELECTROSPRAY INTERFACE FOR MASS SPECTROMETER AND METHOD OF SUPPLYING ANALYTE TO A MASS SPECTROMETER

机译:质谱仪的电喷雾界面和向质谱仪提供分析物的方法

摘要

TITLE: Electrospray Interface for Mass SpectrometerINVENTORS: Michael G. Ikonomou and Paul KebarleABSTRACT OF THE DISCLOSUREA novel electrospray interface provides highsensitivity and signal stability for massspectrometric detection of analytes in solvents withhigh water content including 100% water. Theelectrospray capillary tip section is heated close tothe boiling point of the solvent. An approximately20°C hotter airstream is also used. Its flow iscoaxial and codirectional to the electrospray. Withthis arrangement, the analyte signal sensitivity andstability obtained with neat water is equal to thatwith neat methanol. The charged state (degree ofprotonation) of protonated peptides sprayed from neatwater and the heated spray is essentially identical tothat observed with unheated spray where the solventwas 80% methanol - 20% water.
机译:标题:质谱仪的电喷雾接口发明人:Michael G. Ikonomou和Paul Kebarle披露摘要新颖的电喷雾接口可提供高质量的灵敏度和信号稳定性用溶剂进行分光光度法检测分析物高水含量,包括100%的水。的电喷雾毛细管尖端部分被加热到接近溶剂的沸点。一个大约还使用20°C的高温气流。它的流量是与电喷雾同轴和同向。用这样的安排,分析物信号灵敏度和用纯净水获得的稳定性等于用纯甲醇。充电状态(度质子化的)水和加热后的喷雾基本上与用未加热的喷雾观察到的溶剂是80%甲醇-20%水。

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