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On-Line Coupling of Flow Injection Microcolumn Separation and Preconcentration to Electrothermal Atomic Absorption Spectrometry for Determination of (Ultra)trace Selenite and Selenate in Water

โœ Scribed by Yan, Xiu-Ping; Sperling, Michael; Welz, Bernhard


Book ID
126906724
Publisher
American Chemical Society
Year
1999
Tongue
English
Weight
83 KB
Volume
71
Category
Article
ISSN
0003-2700

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On-line microcolumn preconcentration wit
โœ Xuejun Peng; Zucheng Jiang; Yun'e Zen ๐Ÿ“‚ Article ๐Ÿ“… 1993 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 512 KB

A desolvation device was connected to a microcolumn (40 mm X 3.0 mm i.d.) in which 8-hydroxyquinoline-5sulphonic acid was immobilized on the substrate of active carbon-silica gel. The analyte and 1.0 M sodium acetate-acetic acid buffer solution (pH 5.6) were mined and pumped through the microcolumn.