Use of variamine blue as a chromogenic reagent for rapid spectrophotometric determination of nano amount of chromium

Trace amounts of Chromium have been determined using a newly developed simple, rapid and sensitive spectrophotometric method. Variamine blue is used as a chromogenic reagent and the proposed method is based on the reaction of chromium(VI) with potassium lodide in acid medium to liberate iodine that...

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Detalles Bibliográficos
Autores principales:	Fabiyi, F.A.S., Donnio, A.Z.
Formato:	JOUR
Materias:	Chromium determination Interference ions Spectrophometric Traceamounts Variamine blue
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_15533174_v37_n10_p809_Fabiyi
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	todo:paper_15533174_v37_n10_p809_Fabiyi
record_format	dspace
spelling	todo:paper_15533174_v37_n10_p809_Fabiyi2023-10-03T16:25:23Z Use of variamine blue as a chromogenic reagent for rapid spectrophotometric determination of nano amount of chromium Fabiyi, F.A.S. Donnio, A.Z. Chromium determination Interference ions Spectrophometric Traceamounts Variamine blue Trace amounts of Chromium have been determined using a newly developed simple, rapid and sensitive spectrophotometric method. Variamine blue is used as a chromogenic reagent and the proposed method is based on the reaction of chromium(VI) with potassium lodide in acid medium to liberate iodine that oxidizes variamine blue to produce violet-colored substances having an absorption maxmium at 615nm. The molar absorptivity and Sandel's sensitivity were found to be 8.12 103Lmol-1cm-1 and 2.3610-3gcm-2, respectively. The for accurate determination of chromium was found to be 0.0003-15gmL-1. Chromium(lll) can be determined after it is oxidized to Cr(lV) with bromine water in alkaline medium the optimum reaction conditions, other analytical condition and interference effect of several ions are reported. The method has been successfully used to analyze chromium in natural water effluents from homes and industries, liver, blood serum and some carbonated drinks samples. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_15533174_v37_n10_p809_Fabiyi
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Chromium determination Interference ions Spectrophometric Traceamounts Variamine blue
spellingShingle	Chromium determination Interference ions Spectrophometric Traceamounts Variamine blue Fabiyi, F.A.S. Donnio, A.Z. Use of variamine blue as a chromogenic reagent for rapid spectrophotometric determination of nano amount of chromium
topic_facet	Chromium determination Interference ions Spectrophometric Traceamounts Variamine blue
description	Trace amounts of Chromium have been determined using a newly developed simple, rapid and sensitive spectrophotometric method. Variamine blue is used as a chromogenic reagent and the proposed method is based on the reaction of chromium(VI) with potassium lodide in acid medium to liberate iodine that oxidizes variamine blue to produce violet-colored substances having an absorption maxmium at 615nm. The molar absorptivity and Sandel's sensitivity were found to be 8.12 103Lmol-1cm-1 and 2.3610-3gcm-2, respectively. The for accurate determination of chromium was found to be 0.0003-15gmL-1. Chromium(lll) can be determined after it is oxidized to Cr(lV) with bromine water in alkaline medium the optimum reaction conditions, other analytical condition and interference effect of several ions are reported. The method has been successfully used to analyze chromium in natural water effluents from homes and industries, liver, blood serum and some carbonated drinks samples.
format	JOUR
author	Fabiyi, F.A.S. Donnio, A.Z.
author_facet	Fabiyi, F.A.S. Donnio, A.Z.
author_sort	Fabiyi, F.A.S.
title	Use of variamine blue as a chromogenic reagent for rapid spectrophotometric determination of nano amount of chromium
title_short	Use of variamine blue as a chromogenic reagent for rapid spectrophotometric determination of nano amount of chromium
title_full	Use of variamine blue as a chromogenic reagent for rapid spectrophotometric determination of nano amount of chromium
title_fullStr	Use of variamine blue as a chromogenic reagent for rapid spectrophotometric determination of nano amount of chromium
title_full_unstemmed	Use of variamine blue as a chromogenic reagent for rapid spectrophotometric determination of nano amount of chromium
title_sort	use of variamine blue as a chromogenic reagent for rapid spectrophotometric determination of nano amount of chromium
url	http://hdl.handle.net/20.500.12110/paper_15533174_v37_n10_p809_Fabiyi
work_keys_str_mv	AT fabiyifas useofvariamineblueasachromogenicreagentforrapidspectrophotometricdeterminationofnanoamountofchromium AT donnioaz useofvariamineblueasachromogenicreagentforrapidspectrophotometricdeterminationofnanoamountofchromium
_version_	1807316572838035456

Use of variamine blue as a chromogenic reagent for rapid spectrophotometric determination of nano amount of chromium

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