Determination of zinc in pharmaceutical products using an electrodialyser incorporated into a flow system

被引：0
|
作者：
J. (Koos) F. van Staden
Cornelius J. Hattingh
机构：
[1] Department of Chemistry,
[2] University of Pretoria,undefined
[3] Pretoria 0002,undefined
[4] South Africa e-mail: Koos.vanStaden@chem.up.ac.za,undefined
来源：
Fresenius' Journal of Analytical Chemistry | 2000年 / 367卷
关键词：
Zinc; Detection Limit; Flow System; Pharmaceutical Product; Flow Injection;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
An electrodialyser unit has been designed, incorporated into the conduits of a flow injection (FI) system, and employed for the removal of interferences in the determination of zinc(II) in multivitamin tablets. The proposed system is fully computerised and is able to determine zinc(II) at a frequency of 18 samples/h with a sample interaction of 0.0015%. The calibration graph is linear between 1 and 20 mg/L. The detection limit is 0. 998 mg/L. The results obtained for zinc(II) in multivitamin tablets with the proposed system compared favourably with those obtained with the standard manual AAS method.
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页码：79 / 83
页数：4
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