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Determination of aminophenols and phenol in hair colorants by ultrasound‐assisted solid‐phase dispersion extraction coupled with ion chromatography
Author(s) -
Zhong Zhixiong,
Li Gongke,
Wu Rong,
Zhu Binghui,
Luo Zhibin
Publication year - 2014
Publication title -
journal of separation science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.72
H-Index - 102
eISSN - 1615-9314
pISSN - 1615-9306
DOI - 10.1002/jssc.201301252
Subject(s) - chemistry , anhydrous , chromatography , extraction (chemistry) , solid phase extraction , sodium sulfite , phenol , dispersion (optics) , detection limit , sulfite , analytical chemistry (journal) , sodium , organic chemistry , physics , optics
A simple and reliable ultrasound‐assisted solid‐phase dispersion extraction coupled with ion chromatography was developed for the determination of aminophenols and phenol. The highly viscous hair colorant was dispersed in solvents using anhydrous sodium sulfite having dual functions of dispersant and antioxidant. The use of anhydrous sodium sulfite did not change the sample volume because it could completely dissolve in solution after matrix dispersion. The extraction and cleanup were combined in one single step for simplifying operation. The extraction process could be rapidly accomplished within 9 min with high sample throughput under the synergistic effects of vibration, ultrasound, and heating. Satisfactory linearity was observed with correlation coefficients higher than 0.9992, and the limits of detection varied from 0.02 to 0.09 mg/L. The applicability of the proposed method was demonstrated by measuring the concentrations of aminophenols and phenol in 32 different commercial hair color products. The recoveries ranged from 86.4–101.2% with the relative standard deviations in the range of 0.52–4.3%. The method offers an attractive alternative for the analysis of trace phenols in complex matrices.