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Citation: QIU Yue, LI Gen-Rong, LONG Mei, RUAN Yan, TAN Chao-Lan, ZHANG Lu, XIA Zhi-Ning. Determination of 11 Kinds of Bisphenols in Plastic Food Contact Materials by Ultra-Performance Convergence Chromatography[J]. Chinese Journal of Analytical Chemistry, ;2020, 48(2): 255-261. doi: 10.19756/j.issn.0253-3820.191346 shu

Determination of 11 Kinds of Bisphenols in Plastic Food Contact Materials by Ultra-Performance Convergence Chromatography

QIU Yue ^1,2, ,
LI Gen-Rong ¹ ,
LONG Mei ¹ ,
RUAN Yan ¹ ,
TAN Chao-Lan ¹ ,
ZHANG Lu ¹ ,
XIA Zhi-Ning ²

1.
Chongqing Academy of Metrology and Quality Inspection, Chongqing 401123, China;
2.
College of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400030, China

Received Date: 21 June 2019
Revised Date: 4 December 2019

Fund Project: This work was supported by the Chongqing Scientific Research Institute Performance Incentive and Guidance Special Project (No. cstc2018jxj100007).

A method for rapid detection of 11 kinds of bisphenols in plastic food contact materials based on ultra-performance convergence chromatography (UPC²) was established. Plastic food contact material sample was extracted with methanol by ultrasonic treatment, followed by clean-up through a 0.22 μm organic membrane. The separation was conducted on ACQUITY UPC² Torus DIOL chromatographic column (150 mm×3.0 mm, 1.7 mm) with supercritical carbon dioxide as the main mobile phase and methanol as a modified co-solvent for gradient elution. The 11 kinds of bisphenols were analyzed by UV detector, and quantified by external standard method. The 11 kinds of bisphenols were separated within 5 min under the optimum conditions, and exhibited a good linearity with the standard curve correlation coefficients (R²) of not less than 0.998. The recoveries at three standard levels (1.0, 25.0 and 50.0 mg/kg) were 75.7%-122.0%, the relative standard deviation was 0.6%-7.3%, and the detection limits (LODs) were 0.1-0.3 mg/kg. This method is convenient, accurate, green and efficient, and can be used for the rapid detection of 11 kinds of bisphenols in plastic food contact materials.
- Bisphenols,
- Ultra-performance convergence chromatography,
- Ultrasonic extraction,
- Plastic food contact materials
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