DOI: 10.3724/SP.J.1096.2013.30641

Chinese Journal of Analytical Chemistry (分析化学) 2013/41:12 PP.1817-1824

Rapid Detection of Ten Restricted Photoinitiators in Paper-made Packaging Based on Ultra Performance Convergence Chromatography

A rapid detection method of residual photoinitiators (PIs)in paper-made packaging based on ultra performance convergence chromatography was developed. The packing paper was extracted ultrasonically using acetonitrile, followed by clean-up of extract using 0.22 μm organic phase filter. The PIs were completely separated in 4 min on the column of Acquity UPC2 CSH Fluoro-Phenyl by gradient elution with carbon dioxide and menthol system. All of the 10 PIs had good linear relationship (R2>0.998) between 0.5-10 mg/L. The recoveries of 10 PIs were in the range from 74.9% to 121.5% at three spike levels of 0.4, 1 and 2 mg/m2 with relative standard deviation less than 9.2%. The limits of detection of target compounds in the method were ranged from 0.27 mg/m2 to 0.76 mg/m2. The real sample analysis showed that this simple and accurate method could be used for the determination of the residues of 10 PIs simultaneously in the paper-made packaging sample.

Key words:Photoinitiators,Ultra performance convergence chromatography,Acetonitrile extraction,Paper-made packaging

ReleaseDate:2015-04-19 11:07:54

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