Subnanogram Determination of Inorganic and Organic Mercury by Helium-Microwave Induced Plasma-Atomic Emission Spectrometry
作者:
K. Fukushi,
S.N. Willie,
R.E. Sturgeon,
期刊:
Analytical Letters
(Taylor Available online 1993)
卷期:
Volume 26,
issue 2
页码: 325-340
ISSN:0003-2719
年代: 1993
DOI:10.1080/00032719308017388
出版商: Taylor & Francis Group
关键词: Helium-microwave induced plasma-atomic emission;selective reduction;amalgamation;cold;vapor;inorganic and organic mercury
数据来源: Taylor
摘要:
Inorganic and organic mercury were determined by helium-microwave induced plasma-atomic emission spectrometry following cold vapor generation. Whereas only inorganic mercury was reduced by stannous ion in an acidic medium, both inorganic and organic mercury (total mercury) were reduced by stannous ion in the presence of cupric ion in a basic medium. Organic mercury was determined as the difference between total and inorganic mercury. Detection limits for inorganic and organic mercury were 11 and 10 pg, respectively, The accuracy of the proposed method was verified through the determination of inorganic, total and organic mercury in two marine biological standard reference materials, DORM-1 and TORT-1.
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