Article Per Year (5 Year)
p-Index From 2020 - 2025
0
P-Index
This Author published in this journals
All Journal Indonesian Journal of Chemistry
Bambang Kuswandi
Chemo and Biosensor Group, Faculty of Pharmacy, University of Jember, Jl. Kalimantan No. 37, Jember 68121, Indonesia
Chemical Engineering, Chemistry & Bioengineering Chemistry

Published : 1 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 1 Documents
Search

 1 
Inhibitive Determination of Hg(II) in Aqueous Solution Using Urease Amperometric Biosensor Dhony Hermanto; Bambang Kuswandi; Dwi Siswanta; Mudasir Mudasir
Indonesian Journal of Chemistry Vol 19, No 3 (2019)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (16.061 KB) | DOI: 10.22146/ijc.40617

Abstract

An amperometric biosensor for the indirect determination of Hg(II) has been developed based on inhibition of urease (EC 3.5.1.5) immobilized into alginate–chitosan polyelectrolyte complexes membrane. The biosensor response was monitored by following the reduction peak of hydrolyzed urea at around -0.15 V. The amperometric biosensor has a dynamic range 40–90 ppb Hg(II) with limit of detection of 66.45 ppb toward Hg(II) ions, repeatability (CV) value of 0.86% and only Ag(I) as the main potential interference. The sensor shows a stable and reproducible response for more than 2 weeks when it stored dry at 4 °C. The analytical results of Hg(II)-spiked water sample showed a good agreement with those obtained by atomic absorption spectrometry method, suggesting that the developed method may be applied in the determination of Hg(II) in the water samples.
Co-Authors Dhony Hermanto Dwi Siswanta Mudasir Mudasir