TY - JOUR

T1 - Micellar Microextraction with Alkyl Polyglucosides for the Preconcentration and Spectrophotometric Determination of Phosphate Ions in Aqueous Media

AU - Timofeeva, I.I.

AU - Kochetkova, M.A.

AU - Dvoinykh, D.D.

AU - Safinskaya, Y.V.

AU - Zubakina, E.A.

AU - Bulatov, A.V.

N1 - Export Date: 4 November 2024 CODEN: JACTE

PY - 2024/10/1

Y1 - 2024/10/1

N2 - Abstract: A micellar microextraction technique has been developed for the preconcentration and spectrophotometric determination of phosphate ions in aqueous media. This method is based on the formation of a reduced form of molybdophosphoric heteropolyacid and its extraction from the aqueous phase into a supramolecular solvent. The supramolecular solvent phase is formed in situ by introducing an amphiphile and a coacervation agent into the acidic aqueous phase. The feasibility of using biodegradable alkyl polyglucoside (C8–C10) as an amphiphile and carboxylic acids as coacervation agents has been investigated. In the acidic medium required for the formation of the reduced form of molybdophosphoric heteropolyacid, the phase of the supramolecular solvent is separated. The maximum absorbance of the extract is achieved using pivalic acid as the coacervation agent. The procedure is characterized by the limit of detection (3σ) for phosphate ions 5 µg/L. The technique is environmentally friendly and does not require the use of expensive equipment. © Pleiades Publishing, Ltd. 2024. ISSN 1061-9348, Journal of Analytical Chemistry, 2024, Vol. 79, No. 10, pp. 1408–1414. Pleiades Publishing, Ltd., 2024.

AB - Abstract: A micellar microextraction technique has been developed for the preconcentration and spectrophotometric determination of phosphate ions in aqueous media. This method is based on the formation of a reduced form of molybdophosphoric heteropolyacid and its extraction from the aqueous phase into a supramolecular solvent. The supramolecular solvent phase is formed in situ by introducing an amphiphile and a coacervation agent into the acidic aqueous phase. The feasibility of using biodegradable alkyl polyglucoside (C8–C10) as an amphiphile and carboxylic acids as coacervation agents has been investigated. In the acidic medium required for the formation of the reduced form of molybdophosphoric heteropolyacid, the phase of the supramolecular solvent is separated. The maximum absorbance of the extract is achieved using pivalic acid as the coacervation agent. The procedure is characterized by the limit of detection (3σ) for phosphate ions 5 µg/L. The technique is environmentally friendly and does not require the use of expensive equipment. © Pleiades Publishing, Ltd. 2024. ISSN 1061-9348, Journal of Analytical Chemistry, 2024, Vol. 79, No. 10, pp. 1408–1414. Pleiades Publishing, Ltd., 2024.

KW - alkyl polyglucosides

KW - aqueous media

KW - micellar microextraction

KW - phosphate ions

KW - spectrophotometry

KW - supramolecular solvents

KW - Chemical detection

KW - Alkylpolyglucosides

KW - Aqueous media

KW - Micellar microextraction

KW - Micellars

KW - Microextraction

KW - Molybdophosphoric heteropolyacid

KW - Phosphate ions

KW - Pre-concentration

KW - Spectrophotometric determination

KW - Supramolecular solvents

KW - Amphiphiles

UR - https://www.mendeley.com/catalogue/56c0c2db-02ec-3e3b-8672-c48b82a54593/

U2 - 10.1134/s1061934824700771

DO - 10.1134/s1061934824700771

M3 - статья

VL - 79

SP - 1408

EP - 1414

JO - Journal of Analytical Chemistry

JF - Journal of Analytical Chemistry

SN - 1061-9348

IS - 10

ER -