TY - JOUR

T1 - Alkyl polyglucoside-based supramolecular solvent formation in liquid-phase microextraction

AU - Вах, Кристина Степановна

AU - Каспер, Светлана Васильевна

AU - Ковальчук, Янина Андреевна

AU - Сафонова, Евгения Алексеевна

AU - Булатов, Андрей Васильевич

N1 - Publisher Copyright: © 2022 Elsevier B.V.

PY - 2022/10/2

Y1 - 2022/10/2

N2 - The phenomenon of alkyl polyglucoside-based supramolecular solvent formation in the presence of alkyl carboxylic acid acted as coacervation agent was described for the first time. Various alkyl polyglucosides and carboxylic acids were studied as the amphiphiles and coacervation agents, respectively. A possible mechanism of the new supramolecular solvent formation was presented. The physico-chemical properties of the developed alkyl polyglucoside-based supramolecular solvents were investigated. The green liquid-phase microextraction approach with the use of alkyl polyglucoside-based supramolecular solvent was developed and applied to epinephrine (hormone and biomarker for the diagnosis of adrenal glands neoplastic diseases) separation and preconcentration from human urine samples prior to its chromatographic determination. Caprylyl/capryl glucoside was found to be the most effective supramolecular solvent precursor for microextraction of the epinephrine (extraction recovery 95%). The microliter amount of the heptanoic acid was required to induce coacervation process and phase separation. The reduced fluidity of alkyl polyglucoside-based supramolecular solvent under cooling was used to simplify the collection of the extract phase by decantation. The green supramolecular solvent obtained was less viscous then known nonionic surfactant-based solvents and as result more compatible with the high-performance liquid chromatography with fluorometric detection.

AB - The phenomenon of alkyl polyglucoside-based supramolecular solvent formation in the presence of alkyl carboxylic acid acted as coacervation agent was described for the first time. Various alkyl polyglucosides and carboxylic acids were studied as the amphiphiles and coacervation agents, respectively. A possible mechanism of the new supramolecular solvent formation was presented. The physico-chemical properties of the developed alkyl polyglucoside-based supramolecular solvents were investigated. The green liquid-phase microextraction approach with the use of alkyl polyglucoside-based supramolecular solvent was developed and applied to epinephrine (hormone and biomarker for the diagnosis of adrenal glands neoplastic diseases) separation and preconcentration from human urine samples prior to its chromatographic determination. Caprylyl/capryl glucoside was found to be the most effective supramolecular solvent precursor for microextraction of the epinephrine (extraction recovery 95%). The microliter amount of the heptanoic acid was required to induce coacervation process and phase separation. The reduced fluidity of alkyl polyglucoside-based supramolecular solvent under cooling was used to simplify the collection of the extract phase by decantation. The green supramolecular solvent obtained was less viscous then known nonionic surfactant-based solvents and as result more compatible with the high-performance liquid chromatography with fluorometric detection.

KW - Alkyl carboxylic acid

KW - Alkyl polyglucoside

KW - Epinephrine (adrenaline)

KW - Liquid chromatography

KW - Supramolecular solvent

KW - Urine

UR - https://www.mendeley.com/catalogue/474c88a0-bcfb-3282-bd3a-37efddcd8d1c/

UR - http://www.scopus.com/inward/record.url?scp=85138114164&partnerID=8YFLogxK

U2 - 10.1016/j.aca.2022.340304

DO - 10.1016/j.aca.2022.340304

M3 - Article

VL - 1228

JO - Analytica Chimica Acta

JF - Analytica Chimica Acta

SN - 0003-2670

M1 - 340304

ER -