| Форма представления | Статьи в российских журналах и сборниках |
| Год публикации | 2007 |
| Язык | английский |
|
Будников Герман Константинович, автор
Зиятдинова Гузель Камилевна, автор
|
|
Григорьева Лидия Владимировна, автор
|
| Библиографическое описание на языке оригинала |
Ziyatdinova, G.K. Coulometric determination of sulfur-containing amino acids using halogens as oxidizing titrants / G.K. Ziyatdinova, L.V. Grigor'eva, G.K. Budnikov // J. Anal. Chem. - 2007. - V. 62. - No. 12.- P. 1176-1179. |
| Аннотация |
It is found that cysteine and methionine quantitatively react with electrogenerated halogens under the conditions of galvanostatic coulometry. Cysteine reacts with all titrants, and methionine reacts only with chlorine and bromine. The stoichiometric coefficients of reactions between cysteine and halogens are 1 : 3, 1 : 3, and 1 : 1 for chlorine, bromine, and iodine, respectively. These coefficients for methionine reactions with chlorine and bromine are 1 : 2 and 1 : 1, respectively. It is shown that cysteine can be selectively determined in its mixtures with methionine by coulometric titration with electrogenerated iodine. It is found that twofold amounts of methionine do not interfere with the determination of cysteine. A procedure is developed for the direct coulometric determination of methionine in tablets with a relative standard deviation of 3?5%. |
| Ключевые слова |
Galvanostatic coulometry, electrogenerated halogens, methionine, cysteine, pharmaceutical analysis |
| Название журнала |
J ANALCHEM+
|
| URL |
http://link.springer.com/article/10.1134%2FS1061934807120143 |
| Пожалуйста, используйте этот идентификатор, чтобы цитировать или ссылаться на эту карточку |
https://repository.kpfu.ru/?p_id=66650 |
Полная запись метаданных  |
| Поле DC |
Значение |
Язык |
| dc.contributor.author |
Будников Герман Константинович |
ru_RU |
| dc.contributor.author |
Зиятдинова Гузель Камилевна |
ru_RU |
| dc.contributor.author |
Григорьева Лидия Владимировна |
ru_RU |
| dc.date.accessioned |
2007-01-01T00:00:00Z |
ru_RU |
| dc.date.available |
2007-01-01T00:00:00Z |
ru_RU |
| dc.date.issued |
2007 |
ru_RU |
| dc.identifier.citation |
Ziyatdinova, G.K. Coulometric determination of sulfur-containing amino acids using halogens as oxidizing titrants / G.K. Ziyatdinova, L.V. Grigor'eva, G.K. Budnikov // J. Anal. Chem. - 2007. - V. 62. - No. 12.- P. 1176-1179. |
ru_RU |
| dc.identifier.uri |
https://repository.kpfu.ru/?p_id=66650 |
ru_RU |
| dc.description.abstract |
J ANALCHEM+ |
ru_RU |
| dc.description.abstract |
It is found that cysteine and methionine quantitatively react with electrogenerated halogens under the conditions of galvanostatic coulometry. Cysteine reacts with all titrants, and methionine reacts only with chlorine and bromine. The stoichiometric coefficients of reactions between cysteine and halogens are 1 : 3, 1 : 3, and 1 : 1 for chlorine, bromine, and iodine, respectively. These coefficients for methionine reactions with chlorine and bromine are 1 : 2 and 1 : 1, respectively. It is shown that cysteine can be selectively determined in its mixtures with methionine by coulometric titration with electrogenerated iodine. It is found that twofold amounts of methionine do not interfere with the determination of cysteine. A procedure is developed for the direct coulometric determination of methionine in tablets with a relative standard deviation of 3?5%. |
ru_RU |
| dc.language.iso |
ru |
ru_RU |
| dc.subject |
Galvanostatic coulometry |
ru_RU |
| dc.subject |
electrogenerated halogens |
ru_RU |
| dc.subject |
methionine |
ru_RU |
| dc.subject |
cysteine |
ru_RU |
| dc.subject |
pharmaceutical analysis |
ru_RU |
| dc.title |
Coulometric determination of sulfur-containing amino acids using halogens as oxidizing titrants |
ru_RU |
| dc.type |
Статьи в российских журналах и сборниках |
ru_RU |
|
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