The Gas Chromatographic-tandem Mass Spectrometry Method To Detect Organochlorine In The Food Packaging

Today's world, economic globalization, trade liberalization is accelerating, in this context, the world of food required to test for pesticides, veterinary drug residues increasing number of projects.Developed countries in recent years, the project provided for the detection of food increasing, the European Union in 2003 provided a new standard of 193 pesticides in the project, the standards promulgated in 2001 increased by 59; Japan in 2003, provides for 121 new standards Pesticides project, In addition, the European Union, Germany, Japan and other countries and regions is also not listed in the standard were the corresponding provisions of other pesticides.Food production in China as a variety of one of the big and trading power, which requires the detection of a significant expansion of the food items. At present, China on pesticide residues in food have been reported, but the commonly used method of time-consuming pre-treatment, solvent use large, complex equipment, complicated operation, transfer, and the enrichment process could easily lead to deviation of experimental results, and the reagents used for Secondary pollution of the environment.As an important class of pesticides in the organochlorine pesticides, as persistent organic pollutants (POPs), a chemically stable, remaining in the environment a long time, not easy to degrade and so on. Although as early as 1983, China has banned the use of machines in agricultural production, pesticide, but in some plants and animals there are traces of residue. Therefore the implementation of pesticide residue analysis is particularly important. At the same time simple and fast development of efficient, high sensitivity, high accuracy and high selectivity detection multi-residue pesticide residues has become an inevitable development trend of technology.The gas chromatographic-tandem mass spectrometry method of 37 kinds of organochlorine in food packaging material (paper).At first, four extraction agents to 37 kinds of organochlorine extraction efficiency was tested,ultimately chosed hexane extract agent. Secondly, eluent polarity and elution volume to florida silica solide-phase extraction column was optimized,30mL hexane:ethyl acetate=1:4 was eluted solvent. The linear range of 37 kinds of organchlorine were 2.0-500μg/L,standard deviation were 0.2377%～13.6317%, the recovery rang were between 74.2%～101.52%.The detect limit were 1.0μg/kg.This study is both independent innovation and introduction of the principle of active, establishing testing food contact materials-paper and recycled fiber residues of organochlorine pesticides in the method, so as to improve our monitoring inspection techniques, establish and improve the inspection system, and improve the status of food safety in China Has played an active role should be.