Citation: ZHANG Weiya, WAN Xin, LI Lixia, WANG Chengyun, JIN Shupei, XING Jun. Determination of short chain chlorinated paraffins in leather products by solid phase extraction coupled with gas chromatography-mass spectrometry[J]. Chinese Journal of Chromatography, ;2014, 32(10): 1152-1156. doi: 10.3724/SP.J.1123.2014.08011 shu

Determination of short chain chlorinated paraffins in leather products by solid phase extraction coupled with gas chromatography-mass spectrometry

ZHANG Weiya ¹ ,
WAN Xin ² ,
LI Lixia ¹ ,
WANG Chengyun ¹ ,
JIN Shupei ² ,
XING Jun ^2,,

1.
1. Shenzhen Entry-Exit Inspection and Quarantine Bureau, Shenzhen 518067, China;

Corresponding author: XING Jun,
Received Date: 13 August 2014

Fund Project: 国家质检总局科技计划项目(2011IK105). (2011IK105)

The short chain chlorinated paraffins (SCCPs) are the additives frequently used in the leather production in China, but they have been put into the list of forbidden chemicals issued by European Union recently. In fact, there is not a commonly recognized method for the determination of the SCCPs in the leather products due to the serious matrix interferences from the leather products and the complex chemical structures of the SCCPs. A method of solid phase extraction coupled with gas chromatography-mass spectrometry (SPE-GC-MS) was established for the determination of the SCCPs in the leather products after the optimization of the SPE conditions. It was found that the interferences from the leather products were thoroughly separated from the analyte of the SCCPs on a home-made solid phase extraction (SPE) column filled with silica packing while eluted with a mixed solvent of n-hexane-methylene chloride (2:1, v/v). With this method, the recoveries for the SCCPs spiked in the real leather samples varied from 90.47% to 99.00% with the relative standard deviations (RSDs) less than 6.7%, and the limits of detection (LODs) were between 0.069 and 0.110 mg/kg. This method is suitable for qualitative and quantitative analysis of SCCPs in the leather products.
- solid phase extraction (SPE),
- gas chromatography-mass spectrometry (GC-MS),
- short chain chlorinated paraffins (SCCPs),
- leather products
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沈阳化工大学材料科学与工程学院沈阳 110142