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China Surfactant Detergent & Cosmetics ›› 2020, Vol. 50 ›› Issue (8): 572-575.doi: 10.3969/j.issn.1001-1803.2020.08.011

• Analytical methods and testing • Previous Articles     Next Articles

Determination of karanal in daily chemicals by GC-MS

LIU Ting(),TANG Hang-yan,ZHU Li-ping,GUO Fang-long,LIU Hai-shan,YAN Ying-peng   

  1. Zhejiang Academy of Science and Technology for Inspection and Quarantine, Hangzhou, Zhejiang 311215, China
  • Received:2019-11-04 Revised:2020-07-29 Online:2020-08-22 Published:2020-08-25

Abstract:

A method for the determination of karanal in daily chemicals by gas chromatography mass spectrometry (GC-MS) was established. It was ultrasonically extracted by methanol as extraction solvent. After membrane filtration, the filtrate was directly determined by GC-MS, and quantitative by external standard method. The results show that the limit of quantity is 0.5 μg/g. In the range of 0.05-10 mg/L, there is a good linear relationship between the peak area and the mass concentration of karanal. The average recoveries at three spiked levels of 0.5, 5 and 10 μg/g change from 70.1% to 96.9%, and the precisions (RSD, n=6) vary from 6.0% to 6.8%. The method has the advantages of wide application, strong operability, simplicity, rapidity, accuracy and reliability, and can meet the testing requirements of karanal in daily chemical products.

Key words: daily chemicals, karanal, gas chromatography mass spectrometry

CLC Number: 

  • TQ658