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.
β¦ LIBER β¦
Flow injection on-line preconcentration with an ion-exchange resin coupled with microwave plasma torch-atomic emission spectrometry for the determination of trace rare earth elements
β Scribed by Qiong Jia; Xiangfei Kong; Weihong Zhou; Lihua Bi
- Publisher
- Elsevier Science
- Year
- 2008
- Tongue
- English
- Weight
- 286 KB
- Volume
- 89
- Category
- Article
- ISSN
- 0026-265X
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An on-line ion exchange preconcentration system has been developed for the separation and determination of the arsenic species, monomethylarsonate (MMA) and As(V) by inductively coupled plasma atomic emission spectrometry (ICP-AES). The strongly basic anion-exchange resin AGl-X8 was used for the se