STUDI OPTIMASI PENENTUAN KADMIUM(II) SECARA VOLTAMMETRI STRIPPING ADSORPTIF
ABSTRACT: Study of optimation
cadmium(II) by adsorptive stripping voltammetry has been done. The aim of this
study to get optimum conditions for determination of Cd(II). Parameters were
done : potential accumulation, time accumulation, pH, supporting electrolite concentration
and optimum of complex concentration. In this case, the optimum conditions were
reached in potential accumulation -0.7 V, time accumulation 60 second, pH 7.0,
NH4Cl 0.12 M, calcon concentration 0.12 mM. In the optimum condition was
obtained with the relative standard deviation was 4.61% for eight replicates,
measurements of 0.01 ppm. The method was applied to the direct determination of
Cd(II) in water around Batang Air Dingin Lubuk Minturun and Muara Padang.
Concentration Cd(II) in sample was equal to 7.359 μg/L and 3.659 μg/L with
recovery of 99.04%.
Penulis: Deswati, Hamzar
Suyani, Citra Buhatika
Kode Jurnal: jpkimiadd100171
