Investigation And Analysis Of Xinjiang Specialty Raisins’ Agricultural Chemicals

Raisins are a prestigious Xinjiang specialty. It was reported that more than75%of our raisinproduction from Xinjiang, the main producing areas including Turpan, Hami, Changji, Kashgar,Hotan and other regions, and Turpan raisins production accounted for more than50%of the Xinjiangproduction. Since2002, the Xinjiang raisins industry into a period of rapid development, in just10years, China’s rapid among the world’s fifth largest raisin exporting country. According to the StateGeneral Administration of Customs statistics, in2010China’s raisin exports of39,850tons, hasreached4.3million tons in2011.At the same time, due to food safety issues by the general concern of consumers at home andabroad, governments have to strengthen food safety legislation and law enforcement, such as the EUDirective and the Japanese Positive List System. These systems to ensure food safety， at the sametime, the objective also formed a certain amount of technical barriers to trade, China’s food exportsituation facing a great challenge. Xinjiang’s exports of raisins is no exception. According to statistics,the domestic and international standards related to agricultural chemicals and raisins limitrequirements: CAC (33), the European Union (442), United States (62), Japan (25), there are a little oflimit requirements about raisins and raisins in China. Whether such a huge difference implies a hugerisk is not known.To this end, it is necessary to analyze and evaluate the food safety risk of Xinjiang raisins as soonas possible. Raisins food safety risk relates primarily to chemical pollution, biological pollution andradioactive pollution in three aspects, the research direction of our group is pesticide residues ofchemical pollution. Research methods used in this study include literature research, fieldinvestigations and laboratory studies three aspects.Task Force on the basis of studies in the literature, producing numerous in-depth Turpan raisins,raisins planting, harvesting, drying, processing and storage, and many other aspects involved in food safety to carry out a large number of on-site investigation to determine the scope of the monitoringproject; under laboratory conditions, determined by UPLC-MS-MS, GC-MS-MS and ICP-MS threedetection methods based monitoring programs.In UPLC-MS-MS method two pre-treatment program for the determination of pesticideresidues and plant growth were established, monitored32kinds of pesticides, There are9kinds ofpesticides were detected in44batches raisin samples; GC-MS-MS method monitored72kinds ofpesticides, in2011year7kinds of pesticides were detected form30batches samples, in2012year9kinds of pesticides were detected form44batches samples, and the method is not only suitable for themonitoring of pesticide residues in raisins, the same applies to fruit and pesticide residues in tomatosauce monitoring, the method has been approved as a ketchup industry standard SN in2012year(2012B387),8kinds of heavy metals were detected by ICP-MS method, which are beyond thenational limits.21kinds of pesticide residues were detected2011-2012, eight kinds of pesticides’limits are not exceeded the national standard, and the remaining13kinds of pesticides currently nonational limits to be found, from the detection results, viticulture indiscriminate use of pesticidesduring the growth of the phenomenon exists and national policies and regulations not perfect enough,it’s neccssary to strengthen re gulatory system..