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Ditemukan 722 dokumen yang sesuai dengan query
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Antonella Furini, editor
"This title focuses on the many aspects of the interaction between plants and heavy metals. Not only it describes the effects of heavy metal toxicity on the plant cell and its organs but it also examines the mechanisms that plants adopt to scavenge heavy metals at cellular, physiological, and metabolic level. Plants and Heavy Metals also analyses Hyperaccumulator plants and shows their potential role in phytoremediation technologies in light of the recent research results."
Dordrecht, Netherlands: Springer, 2012
e20406008
eBooks  Universitas Indonesia Library
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Almas Zaidi,editor
"This title discusses various effects of heavy metal exposure to legumes as well as the bioremediation potential of rhizosphere microbes. Availability of heavy metals, their uptake and the effects of metals on various signaling pathways within legumes are presented. Furthermore, the effects of heavy metals to nitrogen fixing microorganisms and how microsymbionts can overcome metal stress is presented in detail. The role of nitrogen fixers in decontamination of heavy metal toxicity, mycoremediation of metal contaminated soils, microbially mediated transformation of heavy metals and action of plant growth promoting rhizobacteria and nitrogen fixers together in detoxifying heavy metals are broadly explained."
Wien: [, Springer], 2012
e20417997
eBooks  Universitas Indonesia Library
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"A survey on heavy metal content in seawater and sediment was conducted in Jakarta bay in May and October 2004.There is indication of significant presence of heavy metal in sediment...."
Artikel Jurnal  Universitas Indonesia Library
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"Five sediment cores from the fresh water region of the vembanad wetland system were studied for the trace element contents the average concentration of iron ,manganese, nickel, copper, zinc,cadmium,lead, mercury and chromium were determined...."
Artikel Jurnal  Universitas Indonesia Library
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The Netherland: Delf Hydraulics Laboratory, 1987
627.02 SYM b
Buku Teks  Universitas Indonesia Library
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"Heavy metals in suspended sediments (SS) were investigated in the lower Chao Phraya River,
Thailand, and Main particulate metals. The particulate fractions accounted mostly for 60-100% of total concentrations of Cr, Mn, Ni, Cu, Zn, and Pb in both dry and rainy seasons. The comparison of metal contents of the sampled SS and upper continental crust (UCC) implied some anthropogenic inputs of Cr, Ni,Cu, and Zn as well as the dilution process for those metals in the rainy season in Chao Phraya River. Enrichment factor in both rivers also indicated anthropogenic effects on metal content in SS,
reflecting the distinctive seasonal process in Chao Phraya River and the spatial variation within
Maxil."
AEJ 4:1 (2015)
Artikel Jurnal  Universitas Indonesia Library
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Riskin, Joseph
"Systematized data on electrocorrosion and protection of metals, especially in electrochemical plants allow using the book as a guide for corrosion engineers end researchers and for the personnel maintaining the equipment of all kinds of electrochemical plants to analyze the corrosion state of the metallic equipment and to prevent its electrocorrosion."
Amsterdam: Elsevier, 2008
620.16 RIS e
Buku Teks SO  Universitas Indonesia Library
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"The aim is to delineate areas of radiological hazards within and in the surrounding of two selected heavy mineral processing plants. For this purpose, gamma radiations were measured at points in regular grids, except in areas with high radiation the grid distance was condensed to less than the design one. The final results are contour maps of external gamma radiation with coordinates corresponding to the map of the site."
IMJ 2:1 (1996)
Artikel Jurnal  Universitas Indonesia Library
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"The abality of light expanded clay aggregate to remove lead and cadmium from paint industry's effluents was studied at different levels of adsorbent, contact time and pH in April 2008...."
Artikel Jurnal  Universitas Indonesia Library
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Nurmeily Rachmawati
"Ligan 4'-(4-karboksifenil)-2,2':6',2?-Terpiridin (2-Hcptpy) telah berhasil disintesis dengan memodifikasi metode Khronke. Reaksi yang berlangsung dalam sintesis ligan 2- Hcptpy ini merupakan reaksi kondensasi aldol. Hasil yang diperoleh berupada padatan putih dengan persen yield sebesar 62% (1,062 gram). Ligan 2-Hcptpy ini dilakukan uji karakterisasi menggunakan spektrofotometer IR, H-NMR, elemental analisis, spektrofotometer UV-Vis, UV-DRS, dan spektrofluorometer. Tahap berikutnya melakukan kompleksasi antara ligan 2-Hcptpy dengan garam lantanida nitrat Eu3+ dan Dy3+. Sintesis kompleks lantanida dengan ligan 2-Hcptpy ini memodifikasi metode yang dikembangkan oleh Qin-Ran Wu dkk. (2011) melalui proses hidrotermal.
Hasil sintesis kompleks Eu3+ diperoleh massa endapan bewarna putih kekuningan sebesar 0,358 gram. Kompleks Dy3+ berwarna kecoklatan dengan massa endapan sebesar 0,392 gram. Aplikasi pada penelitian ini yaitu fluorosensor terhadap logam berat (Pb2+ dan Cd2+) dan logam alkali (Na+ dan K+) baik terhadap ligan 2-Hcptpy maupun pada kompleks Eu3+ dan Dy3+. Dengan adanya penambahan logam berat dan logam alkali baik ligan maupun kompleks memberikan dua tipe fluorosensor. Ligan memberikan tipe fluoresens turn on-off dengan penambahan ion logam Pb2+, Cd2+, Na+, K+ (5x10-5 - 5x10-6) M dan tipe turn off-on (5x10-7 - 5x10-8) M. Kompleks Eu3+ menunjukkan fluoresens tipe turn onoff dengan penambahan ion logam Pb2+ (5x10-4 M), Cd2+, Na+ (5x10-4, 5x10-6, 5x10-8) M, K+ dan tipe turn off-on dengan penambahan ion logam Pb2+ (5x10-5 - 5x10-8) M, Na+ (5x10-5, 5x10-7) M. Sementara kompleks Dy3+ menunjukkan tipe turn off-on dengan penambahan ion logam Pb2+, Cd2+, Na+ (5x10-4, 5x10-8) M, K+ (5x10-6 - 5x10-8) M dan tipe turn on-off dengan penambahan ion logam Na+ (5x10-5 - 5x10-7) M, K+ (5x10-4, 5x10-5) M.

Ligand 4'-(4-carboxyphenyl)-2,2':6',2?-Terpyridine (2-Hcptpy) had been synthesized by modification of Khronke method. The synthesized using aldol condensation reaction. The white precipitated was collected and given 62% yield (1,062 gram). Ligand 2- Hcptpy has been characterized by FTIR, Elemental analyzer, H-NMR, UV-vis and UVDRS spectrofotometer. This ligand was complexation by lanthanide group (Eu3+ and Dy3+) by its nitrate salts. The synthesis of complex compound was done by hydrothermal process adapted from Qin-Ran wu et al (2011).
The result of yield complex Eu3+ gave 0,358 gram with colour of complex was white yellowish precipitate, while complex Dy3+ gave yield 0,392 gram with light brown precipitate. The application of this research was fluorosensor of heavy metals (Pb2+ dan Cd2+) and alkali metals (Na+ dan K+) either with ligand or complexes. The data of fluorescence showed that either ligand or complex gave two types of fluorescence. Ligand had type on-off with addition of Pb2+, Cd2+, Na+, K+ (5x10-5 - 5x10-6) M and type off-on (5x10-7 - 5x10-8) M. Complex Eu3+ had type on-off with addition of Pb2+ (5x10-4 M), Cd2+, Na+ (5x10-4, 5x10-6, 5x10-8) M, K+ and type off-on with addition of Pb2+ (5x10-5 - 5x10-8) M, Na+ (5x10-5, 5x10-7) M. While complexe Dy3+ had type off-on with addition of Pb2+, Cd2+, Na+ (5x10-4, 5x10-8) M, K+ (5x10-6 - 5x10-8) M and type on-off with addition of Na+ (5x10-5 - 5x10-7) M and K+ (5x10-4, 5x10-5) M."
Depok: Universitas Indonesia, 2016
T46567
UI - Tesis Membership  Universitas Indonesia Library
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