| ชื่อเรื่อง | : | Accumulation of humic acid in DET/DGT gels |
| นักวิจัย | : | Van der Veeken, P.L.R. , Chakraborty, P. , Van Leeuwen, H.P. |
| คำค้น | : | humic acid , dynamic trace metal , polyacrylamide hydrogels |
| หน่วยงาน | : | National Institute Of Oceanography (NIO), India |
| ผู้ร่วมงาน | : | - |
| ปีพิมพ์ | : | 2553 |
| อ้างอิง | : | Environmental Science & Technology, vol.44(11); 4253-4257 , http://drs.nio.org/drs/handle/2264/3626 |
| ที่มา | : | - |
| ความเชี่ยวชาญ | : | - |
| ความสัมพันธ์ | : | - |
| ขอบเขตของเนื้อหา | : | - |
| บทคัดย่อ/คำอธิบาย | : | 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), polyacrylamide 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 typicallyonthe order of 10. The results have consequences for the interpretation of DGT-data on metal fluxes from aquatic media containing humics and fulvics. |
| บรรณานุกรม | : |
Van der Veeken, P.L.R. , Chakraborty, P. , Van Leeuwen, H.P. . (2553). Accumulation of humic acid in DET/DGT gels.
: National Institute Of Oceanography (NIO), India. Van der Veeken, P.L.R. , Chakraborty, P. , Van Leeuwen, H.P. . 2553. "Accumulation of humic acid in DET/DGT gels".
: National Institute Of Oceanography (NIO), India. Van der Veeken, P.L.R. , Chakraborty, P. , Van Leeuwen, H.P. . "Accumulation of humic acid in DET/DGT gels."
: National Institute Of Oceanography (NIO), India, 2553. Print. Van der Veeken, P.L.R. , Chakraborty, P. , Van Leeuwen, H.P. . Accumulation of humic acid in DET/DGT gels. : National Institute Of Oceanography (NIO), India; 2553.
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