Monitoring of labile metals in turbid coastal seawater using diffusive gradients in thin-films

被引：41

作者：

Munksgaard, NC ^{[1
]}

Parry, DL ^{[1
]}

机构：

[1] No Terr Univ, Sch Biol Environm & Chem Sci, Darwin, NT 0909, Australia

来源：

JOURNAL OF ENVIRONMENTAL MONITORING | 2003年 / 5卷 / 01期

关键词：

D O I：

10.1039/b209346d

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Diffusive gradients in thin-films (DGT) have been investigated for in situ monitoring of labile metals in north-Australian coastal seawater. Field and experimental data showed that DGT devices provided adequate detection limits, accuracy and precision for monitoring of near-pristine levels of labile Mn, Cc, Cu, Cd and Pb when deployed for periods of 3 days. However, Zn could not be adequately determined due to high blank levels. The ratio of DGT-labile to 0.45 mum-filtered metal levels in natural seawater ranged from 0.44-0.63 for Cu but was close to unity for Co and Cd. Elevated levels of suspended particulate matter up to 57.3 mg l(-1) did not have an adverse effect on the performance of DGT.

引用

页码：145 / 149

页数：5

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