Deep eutectic solvents based on carboxylic acids for metals separation from plant samples: Elemental analysis by ICP-OES

被引：40

作者：

Shishov, Andrey ^{[1
]}

Gerasimov, Artur ^{[1
]}

Bulatov, Andrey ^{[1
]}

机构：

[1] St Petersburg State Univ, St Petersburg Univ, Inst Chem, Dept Analyt Chem,SPbSU, 7-9 Univ Skaya Nab, St Petersburg 199034, Russia

来源：

FOOD CHEMISTRY | 2022年 / 366卷

关键词：

Deep eutectic solvent; Extraction; Elemental analysis; ICP-OES; Plant tobacco; Lettuce; Microwave digestion; Determination of metals; CHOLINE CHLORIDE; PHASE MICROEXTRACTION; TOXIC METALS; CIGARETTE; TOBACCO; ZN; FE; CU;

D O I：

10.1016/j.foodchem.2021.130634

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Deep eutectic solvents based on choline chloride, carboxylic acids, urea, and polyols were investigated for separation of 14 metals from plant samples. It was found that carboxylic acid as precursor of DES played key-role for effective metals separation. It was established that the solvent synthesized from choline chloride and malic acid provided highest extraction recovery (from 73 to 88%). Mixing and heating the solvent and sample for 30 min at a temperature of 70 degrees C provided effective separation of metals from plant sample. The developed procedure is not required a microwave digestion of samples. After separation the solvent phase containing analytes was dissolved in aqueous phase and analyzed. The developed procedure was applied to elemental analysis of plant tobacco and lettuce samples by inductively coupled plasma optical emission spectroscopy. Limits of detection calculated as three times the signal-to-noise ratio were in the range from 0.2 to 17 mg kg-1.

引用

页数：7

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