✦ LIBER ✦

Accurate mass determination by multiple sprayers nano-electrospray mass spectrometry on a magnetic sector instrument

✍ Scribed by Yutaka Takahashi; Susumu Fujimaki; Tatsuji Kobayashi; Tetsuichiro Morita; Tetsuo Higuchi

Publisher: John Wiley and Sons
Year: 2000
Tongue: English
Weight: 44 KB
Volume: 14
Category: Article
ISSN: 0951-4198
DOI: 10.1002/(sici)1097-0231(20000615)14:11<947::aid-rcm970>3.0.co;2-n

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✦ Synopsis

A new technique for accurate mass determination by using multiple sprayers nano-electrospray ionization mass spectrometry (nano-ESI-MS) on a magnetic sector instrument is described. Metal coated glass capillaries were used as nano-ESI sprayers. One of the sprayers was used for the reference compound solution, and others were used for the introduction of sample solutions. The spectra of the different compounds were obtained by shifting each sprayer's position relative to the sampling orifice. The accurate masses of several standard compounds were obtained with good accuracy, without problems arising from differences in ionization efficiency between the sample compounds and reference compound.

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