Pengembangan Metode DGT (Diffusive Gradient In Thin Film) dengan Binding Gel Fe-Al-Oksida dan Pengikat Silang N,N’-Methylenebisacrylamide untuk Penyerapan Fosfat dalam Air
High concentration of phosphates in the water can lead to eutrophication which leads to uncontrolled growth of algae (algae blooming). It underlies the need for determining the concentration of phosphate in the aquatic environment. However, the concentration of phosphate may change during storage of samples so that an accurate analysis difficult to achieve unless carried out in-situ. DGT (Diffusive Gradient in Thin Films) is an in-situ measurement method developed for measuring phosphate and metal. In this study the use of Fe-Al-Oxide as a binding gel that is expected to bind phosphate with a capacity greater than ferrihydrite. N, N'-methylenebisacrylamide is used as a substitute for commercial DGT Crosslinker as crosslinking for a cheaper price and selective for small molecule. Ferrihydrite-DGT and Fe-Al-Oxide-DGT are tested with a variety of concentrations, pH, and contact time. In both methods DGT found that the pH for phosphate measurements performed at pH 3. Capacity of Fe-Al-Oxide binding gel known to be higher than the ferrihydrite binding gel with result Cferrihydrite-DGT:Cstart is 76% and CFe-Al-Oxide-DGT:Cstart is 82%.
Arai Y, DL Sparks. 2001. ATR-FTIR Spectroscopic Investigation on Phosphate Adsorption Mechanisms at The Ferrihidrit-Water Interface. J. Colloid Interface Sci. 241:317-326.
Brady NC, RR Weil. 1999. The Nature and Properties of soils. 12th ed. Prentice Hall, Upper Saddle River, NJ.
Chrambach A. 1985. The Practice of Quantitative Gel Electrophoresis. VCH, Deerfield Beach : Weinheim
Connor PA, McQuillan AJ. 1999. Phosphate Adsorption onto TiO2 from Aqueous Solution: An In Situ Internal Reflection Infrared Spectroscopic Study.
Davison W, Zhang H. 1994. In-situ speciation measurements of trace components in naturalwaters using thin-ﬁlmgels. Nature. 367 (6463): 546–548.
De Sousa et al. 2012. Adsorption of Phosphate using mesoporous spheres containing iron and alumunium oxide. C Chemical Engineering Journal. 210: 143–149.
Ding, Shiming et al. 2010. Measurement of Dissolved Reactive Phosphorus using The Diffusive Gradient in Thin Films technique with a High-Capacity Binding Phase. Environ. Sci. technol. 44: 8169-8174.
Reddy KR, RH Kadlec, E Flaig, PM Gale. 1999. Phosphorus Retention in Streams and Wetlands-A review. Crit. Rev. Environ. Sci. Technol. 29:86-146.
Siregar Eveline. 2014. Pembuatan Besi Alumunium Oksida Berongga Ukuran Mesopori untuk Penyerapan Fosfat dalam Air. [Skripsi]. Depok (ID): Departemen Kimia FMIPA UI.
Zhang, Davison. 1993. Performance Characteristics of Diffusion Gradient in Thin Film for The in situ Measurement of Trace Metal in Aqueos Solution. Anal Chem. 67: 3391-3400.
Zhang H, W Davison. 1999. Diffusional Characteristic of Hydrogels used in DGT and DET Technique. Analytical Chimica Acta. 398 (2-3): 329-340.
Zhang H. 1998. In Situ Measurement of Dissolved Phosphorus in Natural Waters using DGT. Analytical Chimica Acta. 370: 29-38.
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