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Heberth Juliano Vieira

Researcher at Federal University of São Carlos

Publications -  16
Citations -  259

Heberth Juliano Vieira is an academic researcher from Federal University of São Carlos. The author has contributed to research in topics: Detection limit & Chemiluminescence. The author has an hindex of 10, co-authored 16 publications receiving 247 citations. Previous affiliations of Heberth Juliano Vieira include Universidade Federal do Pampa & Universidade Federal da Grande Dourados.

Papers
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Journal ArticleDOI

Generation and destruction of unstable reagent in flow injection system: determination of acetylcysteine in pharmaceutical formulations using bromine as reagent.

Willian Toito Suarez, +2 more
- 01 Apr 2005 - 
TL;DR: A flow injection spectrophotometric procedure was developed for determination of acetylcysteine in sachets and liquid formulations by reacting it with bromine chemically generated in flow injection system monitored continuously at 400 nm.
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Flow injection spectrophotometric method for chloride determination in natural waters using Hg(SCN)(2) immobilized in epoxy resin.

Claudineia R. Silva, +4 more
- 28 Feb 2005 - 
TL;DR: The main advantage of the developed method is the 400% reduction of the Hg waste solution generated when compared to conventional methods for chloride determination based on the same spectrophotometric reaction.
Journal Article

Flow injection spectrophotometric system for N-acetyl-L-cysteine determination in pharmaceuticals

Ana Luiza De Toledo Fornazari, +3 more
- 01 Jan 2005 - 
TL;DR: In this paper, a flow injection system with spectrophotometric detection was proposed for determining N-acetyl-L-cysteine in pharmaceutical formulations, and the linearity of the calibration curve for Nacetyl L-Cysteine ranged from 3.5×10-6 to 4.3×10 -4 M.
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Flow injection spectrophotometric determination of n-acetylcysteine and captopril employing prussian blue generation reaction

Willian Toito Suarez, +5 more
- 06 Sep 2011 - 
TL;DR: In this paper, a novel flow injection procedure was proposed to determine N-acetylcysteine and captopril in pharmaceutical formulations, based on oxidation of the analytes by Fe(III) in acidic medium and subsequent reaction of the Fe(II) generated with excess hexacyanoferrate(III), to produce soluble Prussian blue (KFe[Fe(CN)6]) measured at 700nm.
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Electroregenerable anion-exchange resin with triiodide carbon paste electrode for the voltammetric determination of adrenaline.

Karina Omuro Lupetti, +3 more
- 04 Apr 2002 - 
TL;DR: The results obtained for adrenaline in pharmaceutical samples using the proposed carbon paste electrode are in agreement with those obtained using a pharmacopoeial procedure at the 95% confidence level.