Development and evaluation of a diffusive gradients in a thin film technique for measuring ammonium in freshwaters
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- 作者：Jianyin Huang ; William W. Bennett ; David T. Welsh ; d.welsh@griffith.edu.au" class="auth_mail" title="E-mail the corresponding author ; Tianling Li ; Peter R. Teasdale
- 关键词：Passive sampler ; Nitrogen ; Ammonium diffusion coefficient ; Diffusive boundary layer ; Variability ; Freshwater streams
- 刊名：Analytica Chimica Acta
- 出版年：2016
- 出版时间：21 January 2016
- 年：2016
- 卷：904
- 期：Complete
- 页码：83-91
- 全文大小：897 K
文摘
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A new DGT technique, using Microlite PrCH, was developed and evaluated for monitoring NH4–N in freshwaters.
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PrCH-DGT is suitable for a wide range of pH conditions (3.5–8.5) and ionic strengths (up to 0.012 mol L−1 NaCl).
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PrCH-DGT showed a good linear uptake for NH4–N over 72 h in synthetic freshwater.
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During field deployments CDGT values with DBL matched well with the average grab sample values.