Natural deep eutectic solvent based ultrasound assisted liquid-liquid micro-extraction method for methyl violet dye determination in contaminated river water

被引：30

作者：

Ul Haq, Hameed ^{[1
]}

Wali, Azmat ^{[2
]}

Safi, Faisal ^{[2
]}

Arain, Muhammad Balal ^{[3
]}

Kong, Lingshuai ^{[4
]}

Boczkaj, Grzegorz ^{[1
,5
]}

机构：

[1] Gdansk Univ Technol, Fac Civil & Environm Engn, Dept Sanit Engn, G Narutowicza St 11-12, PL-80233 Gdansk, Poland

[2] Univ Malakand, Dept Chem, 18800 Lower Dir, Chakdara, Khyber Pakhtunk, Pakistan

[3] Univ Karachi, Dept Chem, Karachi, Pakistan

[4] Shandong Univ, Sch Environm Sci & Engn, Inst Ecoenvironm Forens, Qingdao 266237, Peoples R China

[5] Gdansk Univ Technol, EkoTech Ctr, G Narutowicza St 11-12, PL-80233 Gdansk, Poland

来源：

WATER RESOURCES AND INDUSTRY | 2023年 / 29卷

关键词：

Dyes; Green extraction; Methyl violet analysis; Sample preparations; Water analysis; Wastewater; SOLID-PHASE EXTRACTION; MALACHITE GREEN; CRYSTAL VIOLET; IONIC LIQUID; FOOD SAMPLES; SUDAN DYES; MICROEXTRACTION; ADSORPTION; NANOPARTICLES; SEPARATION;

D O I：

10.1016/j.wri.2023.100210

中图分类号：

TV21 [水资源调查与水利规划];

学科分类号：

081501 ;

摘要：

Simple and green natural deep eutectic solvent (NADES) based ultrasound assisted liquid-liquid micro-extraction (UA-LLME) method was developed for extraction and determination of methyl violet dye in contaminated river water samples using UV/Vis spectrophotometry. Choline chloride - decanoic acid based natural deep eutectic solvent was used for extraction. Important analytical parameters like pH, deep eutectic solvent volume/phase ratio, tetrahydrofuran volume, sonication time, and temperature were optimized. Limit of detection (LOD) and limit of quantification (LOQ) were 2.20 & mu;g/L and 7.34 & mu;g/L respectively. Relative standard deviation was 2.35-3.21%. Linearity of method was investigated in a concentration range 10-400 & mu;g/L. Enrichment factor was calculated as 20. For 20 mL sample, the optimized parameters were as deep eutectic solvent volume 1.5 mL, tetrahydrofuran volume was 0.6 mL, pH = 6, sonication time 2 min. The optimized method was tested for extraction of methyl violet in real water samples confirming its applicability in routine environmental analysis.

引用

页数：9

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