Spectrophotometric Determination of 2,4-Dichlorophenoxyacetic Acid Using Extraction with Astrafloxin

Autor:	I. P. Antal, A. Zh. Kormosh, E. S. Zhurba, Ya. R. Bazel, Zh. A. Kormosh
Rok vydání:	2020
Předmět:	Detection limit 2 4-Dichlorophenoxyacetic acid 010401 analytical chemistry Extraction (chemistry) Aqueous two-phase system Ion pairs Molar absorptivity 010402 general chemistry Polymethine dye 01 natural sciences Toluene 0104 chemical sciences Analytical Chemistry chemistry.chemical_compound chemistry Nuclear chemistry
Zdroj:	Journal of Analytical Chemistry. 75:909-912
ISSN:	1608-3199 1061-9348
DOI:	10.1134/s1061934820070114
Popis:	We show a possibility of the spectrophotometric determination of 2,4-dichlorophenoxyacetic acid based on the extraction of its ion pair (IP) with polymethine dye Astrafloxin FF with toluene. The maximum recovery of the ion pair from the aqueous phase is achieved at pH 6–11 and a dye concentration of (1.6–2.8) × 10–4 M. The conditional molar absorption coefficient of the ion pair is 4.0 × 104, and the limit of detection for 2,4-dichlorophenoxyacetic acid is 0.9 µg/mL. The developed method of the extraction–spectrophotometric determination of 2,4-dichlorophenoxyacetic acid was used to analyze water and herbicides.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::5f71e165a79e35d5de0e9e861a02e8f9 https://doi.org/10.1134/s1061934820070114 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
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