Electrothermal Vaporization of Trace Gallium via In SITU Alkylation for Inductively Coupled Plasma Atomic Emission Spectrometry
1994; Taylor & Francis; Volume: 27; Issue: 12 Linguagem: Inglês
10.1080/00032719408005986
ISSN1532-236X
AutoresTakahiro Kumamaru, Shiquan Tao, Masayuki Uchida, Yasuaki Okamoto,
Tópico(s)Mass Spectrometry Techniques and Applications
ResumoAbstract A sample introduction method based on alkylation of the analyte was proposed for introducing trace gallium into inductively coupled plasma for atomic emission spectrometry. By using 10 μl of a sample solution with 15 μl of a 0.9 mol 1-1 solution of ethylmagnesium bromide in tetrahydrofuran as alkylating reagent, a detection limit of 1.9 ng of gallium was obtained and the calibration graph was linear with the amount of gallium up to 100 ng. The relative standard deviation (n = 10) was 2.0% when 10 ng of gallium was present in the sample. Key Words: inductively coupled plasma atomic emission spectrometryelectrothermal vaporizationin situ alkylationGrignard reactionethylgalliumgallium
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