公开(公告)号：US20150371837A1

公开(公告)日：2015-12-24

申请号：US14762916

申请日：2014-01-27

Applicant: HITACHI HIGH-TECHNOLOGIES CORPORATION

Inventor： Hiroyuki YASUDA ,  Shinya ITO ,  Akira FUJII ,  Yasushi TERUI

IPC: H01J49/04 ,  G01N30/72

CPC classification number: H01J49/0445 ,  G01N30/724 ,  H01J49/165

Abstract: A mass spectrometry is equipped with a liquid specimen supply part which supplies a liquid specimen sandwiched between bubbles, an ion source part ionizes the specimen, and a mass spectrometry part which detects ions separated in accordance with mass. In particular the ion source part is configured so as to include a liquid supply tube for transporting a specimen from the liquid specimen supply part, a degassing/liquid retention part in which bubbles are removed, a spraying part which ionizes the specimen, and a high-voltage power supply part which applies a high voltage to the spraying part. The device is further characterized in that after removing the bubbles, a Taylor cone is formed from the resultant pre-solution, and the specimen is ionized thereafter. Thus, the ionization of an intended specimen is stabilized, and the measurement reproducibility is improved.

Abstract translation: 质谱仪配备有液体试样供给部件，其供给夹在气泡之间的液体试样，离子源部件将样品离子化，以及检测根据质量分离的离子的质谱部分。 特别地，离子源部构成为包括用于从液体试样供给部输送试样的液体供给管，除去气泡的脱气/液体滞留部，使样本电离的喷射部， - 对喷涂部施加高电压的电压电源部。 该装置的特征还在于，在除去气泡之后，由所得预溶液形成泰勒锥体，然后将样品电离。 因此，期望的样品的电离稳定，并且测量再现性提高。