Effect of methanol addition on generation of isobaric polyatomic ions in the analysis of arsenic with ICP-MS

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• 作者：Jinsung An^a ; Hosub Lee^b ; Kyoungphile Nam^a ; Hye-On Yoon^b ; ^{dunee@kbsi.re.kr}
• 关键词：Isobaric polyatomic ions ; 40Ar35Cl+ ;   ; ICP-MS ; Methanol addition ; Arsenic
• 刊名：Microchemical Journal
• 出版年：2017
• 出版时间：March 2017
• 年：2017
• 卷：131
• 期：Complete
• 页码：170-173
• 全文大小：382 K
• 卷排序：131

文摘

The effect of methanol addition on generation of 40Ar35Cl+ was investigated. Methanol addition increases As signal intensity via conversion of 75As into 75As+ through charge transfer reaction. Methanol addition decreases 40Ar35Cl+ interference via conversion of 40Ar35Cl+ to 12C35Cl+ through substitution reaction. 40Ar35Cl+ decreases more efficiently in a high-As-containing sample than counterparts with low As concentrations.