Citation: LI Wulin, LI Xuemin, LI Genrong, LI Yanfei, XU Yi, LI Zequan. Determination of 15 phthalate esters in plastic products by ultra performance convergence chromatography[J]. Chinese Journal of Chromatography, ;2016, 34(8): 795-800. doi: 10.3724/SP.J.1123.2016.03017 shu

Determination of 15 phthalate esters in plastic products by ultra performance convergence chromatography

LI Wulin ^1,2,, ,
LI Xuemin ² ,
LI Genrong ¹ ,
LI Yanfei ¹ ,
XU Yi ² ,
LI Zequan ²

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

Corresponding author: LI Wulin,
Received Date: 14 March 2016

Fund Project:

Ultra performance convergence chromatography (UPC²) is cost effective, sustainable, and it uses green technology that lowers the use of organic solvents. Based on these advantages, a method was developed for the determination of 15 phthalate esters in plastic products by UPC². The samples were extracted with hexane and then quantitatively analyzed by UPC². The separation of the 15 phthalate esters was achieved on an ACQUITY UPC² HSS C18 SB column (150 mm×3 mm, 1.8 μ m) by a gradient elution with supercritical CO₂ and acetonitrile as mobile phases. External standard method was used for the quantitative determination and the calibration curves showed good linearity in the concentration range of 0.5-10 mg/L for the phthalate esters with correlation coefficients higher than 0.9960. The limits of quantification of the phthalate esters were 1.0-2.2 mg/kg. Their spiked recoveries were 78.1%-122.3%, and the relative standard deviation range was from 2.95% to 8.26%. The method can be successfully applied for the determination of the phthalate esters in plastic products.
- ultra performance convergence chromatography (UPC²),
- photodiode array detector (PDA),
- phthalate esters (PAEs),
- plastic
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