Determination of nine bisphenols in children's water bottle by online enrichment coupled with high performance liquid chromatography-fluorescence detection

doi:10.3724/SP.J.1123.2019.04016

Abstract

Abstract: A method was developed for the rapid determination of bisphenol A (BPA) and eight structural analogs in children's plastic water bottles by online enrichment coupled with high performance liquid chromatography-fluorescence detection (HPLC-FLD). The correlation coefficients of the nine bisphenols were greater than 0.998. The limits of detection (LOQs) ranged from 0.13 ng/L to 66.7 ng/L. The recoveries ranged from 90.7% to 112.4% (RSD<11.3%, n=6). This method was applied to monitor nine bisphenols in children's water bottles. The results showed that except 4,4'-(9H-fluoren-9-ylidene)bisphenol (BPFL), all the remaining eight bisphenols were detected in different water bottles. The amounts of bisphenols leached increased with the increase of soaking time, and decreased after washing several times at 100℃. The proposed strategy is rapid, sensitive, reliable and eco-friendly, and is suitable for the simultaneous analysis of new bisphenols in water samples.

Key words: high performance liquid chromatography-fluorescence detection (HPLC-FLD), online enrichment, bisphenols, children's plastic water bottles

CLC Number:

O658

HAN Shuying, SONG Yilin, KANG An, DENG Haishan, ZHU Dong, CHI Yumei. Determination of nine bisphenols in children's water bottle by online enrichment coupled with high performance liquid chromatography-fluorescence detection[J]. Chinese Journal of Chromatography, 2019, 37(11): 1185-1192.

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