PEMANFAATAN RESIN CA-ALGINAT TERMODIFIKASI DENGAN ETILENA DIAMINENA TETRAASETAT (EDTA) DALAM TAHAPAN PRAKONSENTRASI ION MN(II) BERBASIS METODE KOLOM
Abstrak: Research on
modification of Ca-Alginate microcapsules with Ethylene Diamin Tetra Acetate
(EDTA) and Utilization in stages pre concentration column Ion Pb based method
has been done. Pre concentration method Pb metal ions is done by using the
column or Off-Line method, the water sample is inserted into the column, in the
elution using 1.5 M HCl, then eluat were collected and measured using Atomic
Absorption Spectrophotometer. The optimum conditions in resin manufacture
Ca-Alginate-EDTA is on the composition of CaCl2 1 M Na-alginate 1%, and 0.75%
EDTA. The optimum conditions analytical performance of this resin microcapsules
with the absorption of Pb most best at pH 8, retention capacity of 0.6546 mg /
g resin, 1.5 M HCl eluent The concentration by volume Pb is 8 mL and 3 mL HCl
eluen volume, analytical performance of this method good enough for Pb ion
analysis is shown of the measurement value detection limit of 0.0469 mg / L
level to able replicates expressed as a percentage coefficient of variance for
1:20%. this method can be applied to the analysis of metal ions Fe in water
samples from the environment to the value of recoveries of> 95%, using
techniques spike indicates that the sample matrix derived from Karang Mumus
River and Well Water does not affect the measurement results and can be used by
analysis of Pb in the sample water at trace levels.
Penulis: Rahma Juwita Sari, Aman
Sentosa Panggabean, Erwin
Kode Jurnal: jpkimiadd160010
