Effect of methanol addition on generation of isobaric polyatomic ions in the analysis of arsenic with ICP-MS
作者: Jinsung AnHosub LeeKyoungphile NamHye-On Yoon
作者单位: 1Department of Civil & Environmental Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08733, Republic of Korea
2Seoul Center, Korea Basic Science Institute, 145 Anam-ro, Sungbuk-gu, Seoul 02855, Republic of Korea
刊名: Microchemical Journal, 2017, Vol.131 , pp.170-173
来源数据库: Elsevier Journal
DOI: 10.1016/j.microc.2016.12.001
关键词: Isobaric polyatomic ions40 Ar 35 Cl +ICP-MSMethanol additionArsenic
英文摘要: Abstract(#br)In the analysis of arsenic (As) with ICP-MS, it was observed that methanol addition to the sample decreases the amount of 40 Ar 35 Cl + formed in the previous study. To investigate the effect of methanol addition on generation of isobaric polyatomic ions and its mechanism, a diluted HCl solution and As solutions with varying concentrations of methanol (0, 1, 2, 3, and 4v/v%) were analyzed using ICP-MS at a variety of mass spectra ( m / z =35, 47, 75, 82, 117, and 152). With addition of methanol to the sample, the signal intensity of 12 C 35 Cl + increased 11.1-fold while that of 40 Ar 35 Cl + only increased 1.17-fold. In this regard, carbon atoms that are not ionized in the plasma ( 12 C) originated from methanol seemed...
全文获取路径: Elsevier  (合作)
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影响因子:2.879 (2012)

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