OPTIMASI PENENTUAN Ni(II), Co(II) dan Cr(III) DENGAN SIMULTAN SECARA VOLTAMMETRI STRIPING ADSORPTIF (AdSV) MENGGUNAKAN KALKON SEBAGAI PENGOMPLEKS
Abstrak: The optimation
study of simultaneous
determination of Ni(II),
Co(II) and Cr(III)
ions by Adsorptive Stripping
Voltammetry (AdSV) using
calcon as complexing
agent was conducted. The aim of this research was
obtain the optimum condition for simultaneous determination of Ni(II), Co(II)
and Cr(III) ions by carrying out investigation toward several parameters, such
as: consentration of calcon,
pH of solution,
accumulation potensial and
acumulation time. Furthermore,
determination the value of Relative standar deviation was conducted. The
results of research was
obtained optimum condition
were: consentration of
calcon 0.6 mM,
pH = 6, accumulation time
60 s and
accumulation potensial -0.6
V. The method
has high degree
of precision with the value of the Relative Standar Deviation with 8 respectively at the optimum condition
were 3.12 % for Ni(II), 2.66 % for Co(II) and 1.44 % for Cr(III).
Penulis: Ahmad Rasifa,
Deswati, dan Umiati Loekman
Kode Jurnal: jpkimiadd150279
