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Study of Ascorbic Acid as Iron(III) Reducing Agent for Spectrophotometric Iron Speciation
The study of ascorbic acid as a reducing agent for iron(III) has been investigated in order to obtain an alternative carcinogenic reducing agent, hydroxylamine, used in spectrophotometric standardExpand
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Production of Organic Polymer Based Monolithic Columns for Anion Separation using High Performance Liquid Chromatography
Methacrylate-based monolithic columns have been prepared in silanized silicosteel column (100 ´ 0.5 mm id) by in situ polymerization reaction, using glycidyl methacrylate (GMA) as monomer, ethyleneExpand
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Online ligand exchange in the determination of weak acid dissociable cyanide by gas diffusion-flow injection analysis
Abstract A novel ligand exchange method for on-line gas-diffusion flow injection (GD-FI) determination of weak acid dissociable (WAD) cyanide has been successfully developed using a binary ligandExpand
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Ex-Situ Synthesis of Polyvinyl alcohol(PVA)-coated Fe3O4 Nanoparticles by Coprecipitation-Ultrasonication Method
In this study, the synthesis of Fe3O4 nanoparticles was done with surface modification using PVA with coprecipitation-ultrasonication method. Time variations and PVA concentrations were added toExpand
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The Coated-Wire Ion Selective Electrode (CWISE) of Chromate Using PVC-Membrane Based on Chitosan as A Carrier
A coated-wire ion selective electrode (CWISE) based on chitosan as a carrier for detection of chromate, was developed. CWISE has easy measurement for field analysis, good selectivity and sensitivity.Expand
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Liquid Chromatography for Analysis of Metformin in Myrmeleon sp.
Myrmeleon sp is a typical of insect larva which has been used in Indonesia for diabetes treatment. However, there is no sufficient scientific report explaining the bioactive compounds in this insect.Expand
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DEVELOPMENT OF FLOW INJECTION METHOD FOR ONLINE DETERMINATION OF THIOCYANATE BASED ON OXIDATION BY PERMANGANATE
The importance of developing method for thiocyanate becomes obvious, because thiocyanate can inhibit iodine uptake of thyroid gland leading to mumps disease. In this work, thiocyanate is oxidized byExpand
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Molecularly Imprinted Polymers Chitosan-Glutaraldehyde for Monosodium Glutamate
Chitosan has been used as a functional monomer in the synthesis of molecularly imprinted polymers (MIP) for monosodium glutamate (MSG). MIP is made from a mixture of 5 g chitosan, 50 mgExpand
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ENGARUH KONSENTRASI AMONIA DALAM PROSES PEMBENTUKAN KOMPLEKS Au(NH3)2
Telah dilakukan penelitian tentang pengaruh konsentrasi ammonia dalam proses pembentukan kompleks Au(NH 3 ) 2 + . Tahapan dalam penelitian ini yaitu proses pelarutan serbuk emas dalam larutan ammoniaExpand
Metode Spektrofotometri Secara Tidak Langsung untuk Penentuan Merkuri(II) berdasarkan Pembentukan Kompleks Biru Iodium-Amilum
Metode spektrofotometri secara tidak langsung telah dikembangkan untuk analisis merkuri(II) berdasarkan perbedaan absorbansi kompleks biru amilum-iodium antara larutan sampel yang mengandung ionExpand
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