Accumulation of Humic Acid in OET/DGT Gels

PASCAL L. R. VAN DER VEEKEN; P. CHAKRABORTY; HERMAN P. VAN LEEUWEN

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Accumulation of Humic Acid in OET/DGT Gels

机译：OET / DGT凝胶中腐殖酸的积累

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Gel layer based sensors are increasingly employed for dynamic trace metal speciation analysis in aquatic and soil media. In DGT (Diffusive Gradient in Thin film), poryacrylamide hydrogels are commonly used for the diffusive gel layer. While some effects of humic and fulvic acids on the DGT detection of metal species have been observed, the gel permeation properties of the actual humic and fulvic acid compounds themselves have not been analyzed thus far. Here we show with DET (Diffusive Equilibrium in Thin film) that these natural complexing agents do enter the gel layer, and that humic acids even appear to accumulate in the gel, with enrichment factors typically on the order of 10. The results have consequences for the interpretation of DGT-data on metal fluxes from aquatic media containing humics and fufvics.

机译：基于凝胶层的传感器越来越多地用于水和土壤介质中动态痕量金属形态分析。在DGT（薄膜中的扩散梯度）中，聚丙烯酰胺水凝胶通常用于扩散凝胶层。尽管已经观察到腐殖酸和富叶酸对金属物种的DGT检测有一些影响，但到目前为止，尚未分析实际的腐殖酸和富叶酸化合物本身的凝胶渗透性能。在这里，我们用DET（薄膜中的扩散平衡）表明，这些天然络合剂确实进入了凝胶层，而且腐殖酸甚至似乎在凝胶中蓄积，富集因子通常约为10。结果对DGT数据对含有腐殖质和松藻的水生金属的金属通量的解释。

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《Environmental Science & Technology》 |2010年第11期|P.4253-4257|共5页
作者
PASCAL L. R. VAN DER VEEKEN; P. CHAKRABORTY; HERMAN P. VAN LEEUWEN;
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作者单位

Department of Physical Chemistry and Colloid Science, Wageningen University, Dreijenplein 6, 6703HB Wageningen;

rnThe Netherlands, and National Institute of Oceanography (CSIR), India, 8-44-1/5, Plot No. 94, Chinawaltair, Visakhapatnam, 530003, Andhra Pradesh, India;

rnDepartment of Physical Chemistry and Colloid Science, Wageningen University, Dreijenplein 6, 6703HB Wageningen;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
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1. DGT/DET Gel Partition Features of Humic Acid/Metal Species [J] . PASCAL L. R. VAN DER VEEKEN, HERMAN P. VAN LEEUWEN Environmental Science & Technology . 2010,第14期

机译：DGT / DET腐殖酸/金属物种的凝胶分配特征
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4. Determination of Conditional Stability Constants for Metals with Humic Acid using Chemically Immobilized Humic Acid on Silica Gel [C] . GyulaSzabo, Judit Guczi, Tohru Miyajima the Meeting of the International Humic Substances Society . 2006

机译：硅胶在硅胶上使用化学固定腐殖酸测定腐殖酸的条件稳定性常数
5. INFLUENCE OF WATER HARDNESS AND HUMIC ACID ON ZINC TOXICITY AND ACCUMULATION IN DAPHNIA MAGNA STRAUS (ACUTE, CHRONIC). [D] . GAUSS, JOSEPH DONALD. 1985

机译：水分硬度和腐殖酸对大叶蚤（急性，慢性）锌毒性和累积的影响。
6. Linoleic acid but not cortisol stimulates accumulation of casein by mouse mammary epithelial cells in serum-free collagen gel culture. [O] . B K Levay-Young, G K Bandyopadhyay, S Nandi 1987

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7. Tandem size exclusion chromatography-polyacrylamide gel electrophoresis of humic acids [O] . Trubetskoj O. A., Trubetskaya O. E., Afanaseva G. V., 2012

机译：串联尺寸排阻色谱-腐殖酸聚丙烯酰胺凝胶电泳

Accumulation of Humic Acid in OET/DGT Gels

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