[1]ТехникаRUРецензированоОткрытый доступ
СОЦИАЛЬНАЯ СФЕРА ОБЩЕСТВА И СОЦИАЛЬНАЯ ПОЛИТИКА ГОСУДАРСТВА
Наука и технология в современном миреМирзаева Ширин Нодировна, Тахиров Чингиз Аъзамович +22026
РецензированоEN2020
Determination Of Tungsten By Solid Phase Spectroscopy Using Immobilized Reagents
Using Immobilized Reagents · Rakhimov S.B. · Khalilova L.M. (National University Of Uzbekistan Named After Mirzo Ulugbek, Tashkent, Uzbekistan) · Cop yright: Original Zhumaeva E.Sh. (http://usajournalshub.c Navoi Pedagogical Institute, Navoi, Uzbekistan) · Smanova Z.A. (National University Of Uzbekistan Named After Mirzo Ulugbek, Tashkent, Uzbekistan)
The American Journal of Applied sciences · 02 · 2020
Аннотация
A sorption-spectroscopic technique for the determination of tungsten by immobilized pyrocatechol violet and sodium salt of 1- (2-hydroxy -1-naphtho-azo) -2-naphthol-4-sulfonic acid has been developed. The optimal conditions for the determination of tungsten were selected and the conditions for immobilization on various types of sorbents (SMA-1, SMA-2, PPM-1, PPD-1, PPA-1) were optimized. The subordination of the tungsten complex with immobilized pyrocatechol violet Beer's law was studied. The calibration graph is linear in the concentration range 0.05-2.00 μg / ml. Sr does not exceed 9.0 ∙ 10- 2. The proposed technique has been tested on various types of waters. KEYWORDS Immobilization, toxic metals, tungsten, pyrocatechol violet, sodium salt of 1- (2-hydroxy-1-naphtha- azo) -2-naphthol-4-sulfonic acid, sorption-spectroscopic determination.
Доказательный фрагмент
«A sorption-spectroscopic technique for the determination of tungsten by immobilized pyrocatechol violet and sodium salt of 1- (2-hydroxy -1-naphtho-azo) -2-naphthol-4-sulfonic acid has been developed.»
Образец извлечения
Демо-превьюA sorption-spectroscopic technique for the determination of tungsten by immobilized pyrocatechol violet and sodium salt of 1- (2-hydroxy -1-naphtho-azo) -2-naphthol-4-sulfonic acid has been developed. Полный текст публикации CiteX не хранит — доступ к первоисточнику открывается по DOI согласно лицензии издателя и выбранному плану.
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- Ключевые слова
- Immobilization, toxic metals, tungsten, pyrocatechol violet, sodium salt of 1- (2-hydroxy-1-naphtha-, , toxic metals, Immobilization,
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