Mass spectra of polar organic compounds in aqueous solutions introduced into an inductively coupled plasma

✍ Scribed by Robert S. Houk; Velmer A. Fassel; Harry J. Svec

• Publisher: John Wiley and Sons
• Year: 1982
• Tongue: English
• Weight: 549 KB
• Volume: 17
• Category: Article
• ISSN: 1076-5174
• DOI: 10.1002/oms.1210170509

✦ Synopsis

Abstract

Aerosols of 1.5% aqueous solutions of glycine, glucose and tartaric acid were introduced into an atmospheric pressure inductively coupled plasma that served as the ion source of a quadrupole mass spectrometer. Protonated water cluster ions were the major ions observed during nebulization of deionized water. Protonated molecular ions were observed at count rates in the range 1000‐10000 counts s^−1^. Detection limits for [MH]^+^ ions of glycine, glucose and tartaric acid were 100, 2000 and 160 μg ml^−1^, respectively. Numerous fragment ions of the above compounds were observed. Both the number of fragment peaks and their count rates decreased as the forward power supplied to the plasma increased.