农药残留检测技术-fao

《农药残留检测技术-fao》由会员上传分享，免费在线阅读，更多相关内容在工程资料-天天文库。

1、农药残留检测技术PesticideResidueTestTechnology农业部蔬菜品质监督检验测试中心（北京）TheVegetableQualityAuditingandInspectingTestCentreoftheAgricultureDepartment(Beijing)刘肃SuLiu农药残留限量标准PesticideResidueLimitStandards中国食品中农药残留最大限量标准GB2763-2014中，共涉及农药种类有387种，限量值有3650个。UnderthePesticideResidueLi

2、mitStandardGB2763-2014forChinesefood,thereare387pesticidesand3650limitvaluesthereofareincluded.这个标准还在不断完善中，农药种类和限量值还在增加。ThisStandardisstillunderimprovementwithmorepesticidecategoriesandtheirlimitvaluesbeingadded.农药残留检测主要过程MajorStepsofPesticideResidueTest1、检测前工作准备

3、；PreparationPriortoTest;2、试样制备；MakeSamples;3、提取；Extract;4、净化；Purify;5、测定；Test;6、检测过程的质量控制。QualityControloverTestProgress.检测前工作准备PreparationPriortoTest环境的检查EnvironmentCheck应对实验室、样品储藏室、前处理室和仪器室等环境进行控制，保证环境的温湿度符合检测的要求。Environmentofthelab,thesamplestorage,thepre

4、liminaryprocessingroomandtheinstrumentroomshouldbecontrolledtoguaranteethetemperatureandhumidityoftheenvironmentsatisfyingtestrequirements.样品前处理室要进行控温，防止试剂的过度挥发，影响结果的准确性。湿度较大的地区，仪器室要除湿。Temperatureofthepreliminaryprocessingroomshouldbecontrolledtopreventreagentsfro

5、moverevaporationwhichmayimpacttheresultaccuracy.Instructroomsinheavyhumidityregionsshouldbedehumanized.检测前工作准备PreparationPriortoTest试剂和药品的检查ReagentandChemicalCheck每进一批试剂和药品，在使用前按相应检验所要求的标准进行检测，对其进行杂质的检查，排除试剂对检测结果的干扰，如有必要应进行处理后再使用。Reagentsandchemicalsundereachorde

6、rshouldbecheckedofit’simpuritiesasperrelevantrequirementsbeforetheyareapplied,toavoidanypotentialinterferencetothetestresultfromsuchreagents.Treatthereagentsandchemicalsbeforeusewhennecessary.一般试剂浓缩50~100倍后测定，检查是否对被测组分有干扰。Undernormalcircumstances,reagentsareconcen

7、trated50to100timesbeforeappliedtotest,todetermineifinterferencetotheobjectiveelementhappens.试样制备（样品取样部位）MakeSamples(PartsfromSamples)谷物Grains稻谷、小麦、大麦、玉米、高粱、薏仁、绿豆、豌豆等，取整粒。Rice,wheat,barley,maize,sorghum,coixseed,greenbeen,peaetc,takethewholeitem.油料Oil油菜籽、芝麻、棉籽、大

8、豆、花生、葵花籽等，取整粒。Rapeseed,sesame,cottonseed,soybean,peanut,sunflowerseedetc,takethewholeitem.试样制备（样品取样部位）MakeSamples(PartsfromSamples)芸薹薯类蔬菜Brassic