Optimization of a in situ sampling technique:: Analysis of Cu and Fe in aquatic systems.

被引：0
|
作者：
Pizarro, J
Rubio, MA
Lira, G
机构：
[1] Univ Santiago Chile, Fac Ingn, Santiago, Chile
[2] Univ Santiago Chile, Fac Quim & Biol, Santiago, Chile
来源：
BOLETIN DE LA SOCIEDAD CHILENA DE QUIMICA | 2001年 / 46卷 / 03期
关键词：
trace metals; difussion gel in thin layer; sediment-water interface;
D O I：
暂无
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The improvement of the technique of diffusive gradients in thin layers (DGT) and the sampling have been tested for Cu and Fe ions in two different samples: synthetic (solution) and heterogeneous (sediment-water interface). Both analytical determinations showed low relative error and low standard deviation. Gel preparation, assembly DGT device, thickness diffusive layer (0.45 mm), time sampling (6 h), time elution (18), and elution factor (Fe: 0.79 +/- 0.02; Cu: 0.80 +/- 0.04) were optimized.
引用
收藏
页码：281 / 285
页数：5
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