Determination of Karanal in Textiles by GC-MS Method

KeyWord:textile  karanal  gas chromatography-mass spectrometry/selected ion monitoring(GC-MS/SIM)  ultrasonic extraction

Abstract:

      A gas chromatography-mass spectrometric method was established for the determination of karanal in textiles.Karanal in textiles was ultrasonically extracted using methanol as extraction solvent.The extract was then analyzed by gas chromatography-mass spectrometry in selected ion monitoring mode(GC-MS/SIM).The concentration of karanal was calibrated by the external standard method.The limit of detection was 0ª±1 mg/kg.Good linearity existed between peak area and the mass concentration of karanal in the range of 0ª±14-28ª±18 mg/L.The average recoveries at three spiked levels of 0ª±71,2ª±82 and 7ª±05 mg/kg changed from 87ª±3% to 96ª±1%.The precision(RSD,n=9) varied from 0ª±58% to 2ª±4%.The proposed method was simple,accurate,and convenient to operate.It was appropriate for the determination of karanal in textiles in routine tests.