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

IF 4.5 3区工程技术 Q1 WATER RESOURCES

Water Resources and Industry Pub Date : 2023-06-01 DOI:10.1016/j.wri.2023.100210

Hameed Ul Haq , Azmat Wali , Faisal Safi , Muhammad Balal Arain , Lingshuai Kong , Grzegorz Boczkaj

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引用次数: 7

Abstract

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 μg/L and 7.34 μg/L respectively. Relative standard deviation was 2.35–3.21%. Linearity of method was investigated in a concentration range 10–400 μg/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.

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天然深共晶溶剂超声辅助液-液微萃取法测定污染河水中甲基紫染料

建立了一种简单、绿色的天然深共熔溶剂(NADES)超声辅助液液微萃取(UA-LLME)方法，紫外/可见分光光度法提取并测定污染河样中甲基紫染料。采用氯化胆碱-癸酸天然深共熔溶剂进行萃取。优化了pH、深度共晶溶剂体积/相比、四氢呋喃体积、超声时间和温度等重要分析参数。检测限和定量限分别为2.20 μg/L和7.34 μg/L。相对标准偏差为2.35 ~ 3.21%。在10 ~ 400 μg/L浓度范围内考察了方法的线性关系。富集系数计算为20。对20 mL样品，优化参数为:深度共晶溶剂体积1.5 mL，四氢呋喃体积0.6 mL, pH = 6，超声时间2 min。对实际水样中甲基紫的提取进行了实验，验证了优化方法在常规环境分析中的适用性。

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来源期刊

Water Resources and Industry Social Sciences-Geography, Planning and Development

CiteScore

8.10

自引率

5.90%

发文量

审稿时长

75 days

期刊介绍： Water Resources and Industry moves research to innovation by focusing on the role industry plays in the exploitation, management and treatment of water resources. Different industries use radically different water resources in their production processes, while they produce, treat and dispose a wide variety of wastewater qualities. Depending on the geographical location of the facilities, the impact on the local resources will vary, pre-empting the applicability of one single approach. The aims and scope of the journal include: -Industrial water footprint assessment - an evaluation of tools and methodologies -What constitutes good corporate governance and policy and how to evaluate water-related risk -What constitutes good stakeholder collaboration and engagement -New technologies enabling companies to better manage water resources -Integration of water and energy and of water treatment and production processes in industry