Molekul: Jurnal Ilmiah Kimia
Vol 16, No 2 (2021)

Chemical Sensor for Detection of Lead Levels in Herbal Medicine

Ani Mulyasuryani (Chemistry Department, Brawijaya University)
Yuniar Ponco Prananto (Unknown)
Elvian Eka Krisnaniningrum (Unknown)

Article Info

Publish Date
20 Jul 2021

Abstract

A new tube type Pb2+ sensor made from two types of mixtures, namely clay-PbI2 and chitosan-PbI2 were prepared. An electromotive force (EMF) with Ag/AgCl as the reference electrode was used as the output signal. The highest performance of the Pb2+ sensor from clay-PbI2 was obtained at Pb2+ solutions in HNO3 and pH 3 with sensor sensitivity of 20.67 mV/decade. The highest performance of the Pb2+ sensor from chitosan-PbI2 was obtained at Pb2+ solutions in demineralized water with sensor sensitivity of 32.49 mV / decade. Application of the two sensors on several commercial herbal samples resulted in an average recovery of 85.62% and 94.10% for sensor from chitosan-PbI2 and clay-PbI2, respectively

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Journal Info
Molekul: Jurnal Ilmiah Kimia
Website

Abbrev

jm

Publisher

Universitas Jenderal Soedirman

Subject

Chemical Engineering, Chemistry & Bioengineering Chemistry

Description

MOLEKUL is a peer-reviewed journal of chemistry published by the Department of Chemistry, Faculty of Mathematics and Natural Sciences, Jenderal Soedirman University, Indonesia. Publishing frequency 2 issues per year, on May and November. This Journal encompasses all branches of chemistry and its ...