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Spectrophotometric determinationof trace nitrite with a novel self-coupling diazotizing reagent: J-acid

A simple and sensitive method for the spectrophotometric determination of nitrite was described and optimum reaction conditions along with other important analytical parameters were established. In the presence of potassium bromide at 25°C, nitrite reacted with J-acid in hydrochloric acid producing...

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Bibliographic Details
Main Authors:	Wei Wu, Wenhuan Wenjian Shi, Yuanxing Huang, Haixin Gu, Jingzhi Wang, Wenxuan Feng
Format:	Article
Language:	Russian
Published:	Інститут колоїдної хімії та хімії води ім. А.В. Думанського НАН України 2015
Series:	Химия и технология воды
Subjects:	Аналитическая химия воды
Online Access:	http://dspace.nbuv.gov.ua/handle/123456789/160709
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id	irk-123456789-160709
record_format	dspace
spelling	irk-123456789-1607092019-11-17T01:26:16Z Spectrophotometric determinationof trace nitrite with a novel self-coupling diazotizing reagent: J-acid Wei Wu Wenhuan Wenjian Shi Yuanxing Huang Haixin Gu Jingzhi Wang Wenxuan Feng Аналитическая химия воды A simple and sensitive method for the spectrophotometric determination of nitrite was described and optimum reaction conditions along with other important analytical parameters were established. In the presence of potassium bromide at 25°C, nitrite reacted with J-acid in hydrochloric acid producing diazonium salt and then coupled with excess J-acid in the sodium carbonate solution yielding red colored azo compounds. At wavelength of 500 nm, Beer’s law was obeyed over the concentration range of 0,02 – 0,60 mg∙L⁻¹. The molar absorptivity was 3,92∙10⁴ L∙mol⁻¹∙cm⁻¹. This method was easily applied to the determination of trace nitrite in environmental water with recoveries of 9₈,7 – 101,2%. 2015 Article Spectrophotometric determinationof trace nitrite with a novel self-coupling diazotizing reagent: J-acid / Wei Wu, Wenhuan Wenjian Shi, Yuanxing Huang, Haixin Gu, Jingzhi Wang, Wenxuan Feng // Химия и технология воды. — 2015. — Т. 37, № 6. — С. 545-554. — Бібліогр.: 14 назв. — англ. 0204-3556 http://dspace.nbuv.gov.ua/handle/123456789/160709 ru Химия и технология воды Інститут колоїдної хімії та хімії води ім. А.В. Думанського НАН України
institution	Digital Library of Periodicals of National Academy of Sciences of Ukraine
collection	DSpace DC
language	Russian
topic	Аналитическая химия воды Аналитическая химия воды
spellingShingle	Аналитическая химия воды Аналитическая химия воды Wei Wu Wenhuan Wenjian Shi Yuanxing Huang Haixin Gu Jingzhi Wang Wenxuan Feng Spectrophotometric determinationof trace nitrite with a novel self-coupling diazotizing reagent: J-acid Химия и технология воды
description	A simple and sensitive method for the spectrophotometric determination of nitrite was described and optimum reaction conditions along with other important analytical parameters were established. In the presence of potassium bromide at 25°C, nitrite reacted with J-acid in hydrochloric acid producing diazonium salt and then coupled with excess J-acid in the sodium carbonate solution yielding red colored azo compounds. At wavelength of 500 nm, Beer’s law was obeyed over the concentration range of 0,02 – 0,60 mg∙L⁻¹. The molar absorptivity was 3,92∙10⁴ L∙mol⁻¹∙cm⁻¹. This method was easily applied to the determination of trace nitrite in environmental water with recoveries of 9₈,7 – 101,2%.
format	Article
author	Wei Wu Wenhuan Wenjian Shi Yuanxing Huang Haixin Gu Jingzhi Wang Wenxuan Feng
author_facet	Wei Wu Wenhuan Wenjian Shi Yuanxing Huang Haixin Gu Jingzhi Wang Wenxuan Feng
author_sort	Wei Wu
title	Spectrophotometric determinationof trace nitrite with a novel self-coupling diazotizing reagent: J-acid
title_short	Spectrophotometric determinationof trace nitrite with a novel self-coupling diazotizing reagent: J-acid
title_full	Spectrophotometric determinationof trace nitrite with a novel self-coupling diazotizing reagent: J-acid
title_fullStr	Spectrophotometric determinationof trace nitrite with a novel self-coupling diazotizing reagent: J-acid
title_full_unstemmed	Spectrophotometric determinationof trace nitrite with a novel self-coupling diazotizing reagent: J-acid
title_sort	spectrophotometric determinationof trace nitrite with a novel self-coupling diazotizing reagent: j-acid
publisher	Інститут колоїдної хімії та хімії води ім. А.В. Думанського НАН України
publishDate	2015
topic_facet	Аналитическая химия воды
url	http://dspace.nbuv.gov.ua/handle/123456789/160709
citation_txt	Spectrophotometric determinationof trace nitrite with a novel self-coupling diazotizing reagent: J-acid / Wei Wu, Wenhuan Wenjian Shi, Yuanxing Huang, Haixin Gu, Jingzhi Wang, Wenxuan Feng // Химия и технология воды. — 2015. — Т. 37, № 6. — С. 545-554. — Бібліогр.: 14 назв. — англ.
series	Химия и технология воды
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first_indexed	2023-06-10T11:09:35Z
last_indexed	2023-06-10T11:09:35Z
_version_	1796154609437245440

Spectrophotometric determinationof trace nitrite with a novel self-coupling diazotizing reagent: J-acid

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