Citation: WANG Chengyun, ZHANG Weiya, LI Lixia, SHEN Yalei, LIN Junfeng, XIE Tangtang, CHU Naiqing. Determination of residual glycol ethers in leather and leather products by gas chromatography/mass spectrometry[J]. Chinese Journal of Chromatography, ;2014, 32(8): 890-896. doi: 10.3724/SP.J.1123.2014.04008 shu

Determination of residual glycol ethers in leather and leather products by gas chromatography/mass spectrometry

1.
Testing and Technology Center for Industrial Products, Shenzhen Entry-Exit Inspection and Quarantine Bureau, Shenzhen 518067, China

Corresponding author: WANG Chengyun,
Received Date: 3 April 2014
Available Online: 3 July 2014
Fund Project: 国家质检总局科研项目(2011IK105) (2011IK105)国家认监委科研制标项目(2013B239k). (2013B239k)

An effective method was established for the simultaneous determination of residual glycol ethers in leather and leather products by gas chromatography/mass spectrometry. Glycol ethers in leather and leather products were ultrasonically extracted at 45℃, using ethyl acetate as the extraction solvent. The extracts were purified by solid phase extraction (SPE) columns, and then analyzed by gas chromatography/mass spectrometry in selected ion monitoring mode. The content of each analyte was calibrated by external standard method. The limit of detection of ethylene glycol ethyl ether (EGEE) was 0.10 mg/kg under the condition of signal to noise (S/N) of 3 and the limits of the other 11 glycol ethers were all less than 0.05 mg/kg. The spiked recoveries varied from 81.2% to 95.5% at three different spiked levels with the relative standard deviations (RSDs) ranged from 1.4% to 6.6%. The proposed method is simple, rapid and accurate, with the limits of detection much less than the requirements of the Regulation Concerning Registration, Evaluation, Authorization and Restriction of Chemicals (REACH) of European Union. It is applicable to the determination of residual glycol ethers in leather and leather products, and provides a reference for the relevant testing standards.
- ultrasonic extraction,
- gas chromatography/mass spectrometry (GC/MS),
- selected ion monitoring (SIM),
- glycol ethers,
- leather
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沈阳化工大学材料科学与工程学院沈阳 110142