TY - JOUR

T1 - Deep eutectic solvent-based extraction of metals from oil samples for elemental analysis by ICP-OES

AU - Shishov, Andrey

AU - Savinov, Sergey

AU - Volodina, Natalia

AU - Gurev, Ivan

AU - Bulatov, Andrey

N1 - Publisher Copyright: © 2022

PY - 2022/8

Y1 - 2022/8

N2 - In this work deep eutectic solvents based on choline chloride and different hydrogen bond donors were systematically investigated for separation of singly- and multiply-charged metals (Ag, Al, B, Ba, Ca, Co, Cr, Cu, Fe, K, Mg, Mn, Mo, Na, Ni, Pb, Sn, Ti, V and Zn) from oil matrices. The effect of deep eutectic solvents precursors was shown to play a critical role in the extraction of different metals. Carboxylic acids, polyols, sugars, urea, and its derivatives were studied as hydrogen bond donors of deep eutectic solvents for metals separation. It was found that deep eutectic solvents based on carboxylic acids and sugars provided the highest extraction efficiency in the extraction of both singly- and multiply-charged metals from oil matrices. Moreover, the effect of water as precursor of deep eutectic solvent on metals’ separation was investigated. Among studied solvents, the deep eutectic solvent containing choline chloride, lactic acid and water provided the highest extraction recovery (up to 99 %). The extraction solvent was applied to elemental analysis of oil samples (vegetable oil and motor oil) by ICP-OES method. Under optimal conditions, the limits of detection were in the range 0.02 to 17 mg kg−1. The developed procedure is not required a microwave digestion of oil samples for elemental analysis.

AB - In this work deep eutectic solvents based on choline chloride and different hydrogen bond donors were systematically investigated for separation of singly- and multiply-charged metals (Ag, Al, B, Ba, Ca, Co, Cr, Cu, Fe, K, Mg, Mn, Mo, Na, Ni, Pb, Sn, Ti, V and Zn) from oil matrices. The effect of deep eutectic solvents precursors was shown to play a critical role in the extraction of different metals. Carboxylic acids, polyols, sugars, urea, and its derivatives were studied as hydrogen bond donors of deep eutectic solvents for metals separation. It was found that deep eutectic solvents based on carboxylic acids and sugars provided the highest extraction efficiency in the extraction of both singly- and multiply-charged metals from oil matrices. Moreover, the effect of water as precursor of deep eutectic solvent on metals’ separation was investigated. Among studied solvents, the deep eutectic solvent containing choline chloride, lactic acid and water provided the highest extraction recovery (up to 99 %). The extraction solvent was applied to elemental analysis of oil samples (vegetable oil and motor oil) by ICP-OES method. Under optimal conditions, the limits of detection were in the range 0.02 to 17 mg kg−1. The developed procedure is not required a microwave digestion of oil samples for elemental analysis.

KW - Deep eutectic solvent

KW - Elemental analysis

KW - Extraction

KW - Inductively coupled plasma

KW - Motor oil

KW - Vegetable oil

UR - http://www.scopus.com/inward/record.url?scp=85127511313&partnerID=8YFLogxK

UR - https://www.mendeley.com/catalogue/ffb2d10f-99a1-3ac4-b328-79f13fc281f0/

U2 - 10.1016/j.microc.2022.107456

DO - 10.1016/j.microc.2022.107456

M3 - Article

AN - SCOPUS:85127511313

VL - 179

JO - Microchemical Journal

JF - Microchemical Journal

SN - 0026-265X

M1 - 107456

ER -