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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| Дата: | 2015 |
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| Автори: | , , , , , |
| Формат: | Стаття |
| Мова: | Russian |
| Опубліковано: |
Інститут колоїдної хімії та хімії води ім. А.В. Думанського НАН України
2015
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| Назва видання: | Химия и технология воды |
| Теми: | |
| Онлайн доступ: | http://dspace.nbuv.gov.ua/handle/123456789/160709 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Цитувати: | 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. |
Репозитарії
Digital Library of Periodicals of National Academy of Sciences of Ukraine| id |
irk-123456789-160709 |
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| 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 |
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