Determination of 10 photo-initiator residues in food plastic packaging by gel permeation chromatography extraction coupled with gas chromatography-mass spectrometry

2015 ◽  
Vol 7 (21) ◽  
pp. 9026-9031 ◽  
Author(s):  
HuiMei Cai ◽  
GuangZhi Shang ◽  
JuZhou Zhang ◽  
GuShuai Tao ◽  
GuiJie Chen ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Analytical Method ◽  
Food Packaging ◽  
Gel Permeation Chromatography ◽  
Gas Chromatography Mass Spectrometry ◽  
Plastic Packaging ◽  
Chromatography Mass Spectrometry ◽  
Gel Permeation

An analytical method based on GPC coupled with GC-MS for the determination of 10 photo-initiators –BP,2-MBP,Irgacure 184,3-MBP,4-MBP,EDB,Irgacure 651,OMBB,EHAandITX– in plastic food packaging.

Determination of Hexachlorocyclohexane (HCH) in Panax notoginseng of Chinese Traditional Medicine by Gas Chromatography/Mass Spectrometry

2013 ◽  
Vol 830 ◽  
pp. 422-425
Author(s):  
Na Wu ◽  
Bo Zhou ◽  
He Ping Yan ◽  
Shi Juan Xu ◽  
Yun Hui Long ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Traditional Medicine ◽  
Gel Permeation Chromatography ◽  
Panax Notoginseng ◽  
Gas Chromatography Mass Spectrometry ◽  
Chinese Traditional Medicine ◽  
Chromatography Mass Spectrometry ◽  
Gel Permeation

A novel method was developed for the determination of HCH in Panax Notoginseng of Chinese traditional medicine by ultrasonic extraction (UE) coupled with Gel Permeation Chromatography and Gas Chromatography/Mass spectrometry. Some important parameters that influence the extraction and purification efficiency were investigated. The optimum condition Panax Notoginseng of Chinese traditional medicine was extracted with dichloromethane about 20mL, extracting times and extracting time were one and 30min. The extracts were cleaned up by Gel Permeation Chromatography, and determined by Gas Chromatography /Mass spectrometry. Under the optimum condition, the mean recoveries of the method were 83.23%, the relative standard deviations (RSD) were 3.45%, which has been under the demand of the determination of HCH in Panax Notoginseng of Chinese traditional medicine.

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