A sweeping-micellar electrokinetic chromatography method for the detection of three chlorophenols in cosmetic samples

• Autorzy: Zheng, Zhihan , Li, Xiaobin , Gao, Fangfang , Liu, Huitao , Gao, Yuan
• Języki publikacji: EN

Abstrakty

EN

A sweeping micellar electrokinetic chromatography (sweeping-MEKC) enrichment model was established for the determination of three chlorophenols (CPs) in cosmetics, namely, bithionol, pentachlorophenol (PCP), and 2,4,6-trichlorophenol (2,4,6-TCP). The optimum electrophoretic conditions were 20 mM NaH2PO4-80 mM sodium dodecyl sulfate (SDS) and 30% (v/v) acetonitrile (pH 2.3). The optimum on-line concentration conditions were as follows: sample matrix, 100 mM NaH2PO4; pressure injection at 20.67 kPa (3 psi) for 25 s. The linear range of bithionol, PCP, and 2,4,6-TCP are 0.20–4.00 μg mL−1, 0.10–2.00 μg mL−1, and 0.05–2.00 μg mL−1 respectively, with correlation coefficient (r) over 0.9972. The limits of detection (LOD) based on three times the signal-to-noise ratio (S/N = 3) are in the range of 0.0061–0.024 μg mL−1. Recoveries for the three CPs in powder and lotion samples are between 79.7 and 110.2% with relative standard deviation (RSD) of 1.38–5.54% and 92.2–121.3% with RSD of 0.72–6.09%, respectively. The proposed method can provide reference for the determination of trace CPs in different sample matrix.

Słowa kluczowe

EN

sweeping micellar electrokinetic chromatography; bithionol; pentachlorophenol; 2,4,6-trichlorophenol; cosmetics

• Czasopismo: Acta Chromatographica
• Rocznik: 2021
• Tom: Vol. 33, no. 4
• Strony: 387--393
• Opis fizyczny: Bibliogr. 32 poz., rys., tab.

Twórcy

autor

Zheng, Zhihan

• College of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, PR China

autor

Li, Xiaobin

• College of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, PR China

autor

Gao, Fangfang

• College of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, PR China

autor

Liu, Huitao

• College of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, PR China,

autor

Gao, Yuan

• College of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, PR China,

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Identyfikatory

DOI

10.1556/1326.2020.00812