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- W1901352693 abstract "Quantitative aspect of trace heavy metal in natural waters is indeed not dangerous. It become serious when accumulation in particulates, sedimkents, and water biota are considered, due to the fact of its potential as toxic contaminants. Effort to concentrate water sample using Diaion CR-11 resin was carried out and its trace heavy metals of Ni, Cu, Zn, dan Cd with atomic absorption method was determined. Concentrating technique was done by cation exchange chromatography where iminodiacetic ion of resin forms chelated complex with metal and accumulated in column. Elution with 2 M HNO 3 will release all metals bonded in a very small volume so that metal concentration inreased. By this technique, enrichment factor found is 120 and recovery percentage are 87.5 (Ni); 83.3 (Cu & Zn), and 66.7 (Cd). Detection limit so far for trace element analysis by atomic absorption spectroscopy is in the order of 0.2 mg/L." @default.
- W1901352693 created "2016-06-24" @default.
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- W1901352693 date "1999-01-01" @default.
- W1901352693 modified "2023-09-24" @default.
- W1901352693 title "PEMEKATAN SAMPEL AIR ALAM DENGAN RESIN DIAION CR-11 UNTUK PENENTUAN LOGAM BERAT KELUMIT" @default.
- W1901352693 hasPublicationYear "1999" @default.
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