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DETERMINA??O DE RESíDUOS DE AGROTóXICOS ORGANOCLORADOS EM HORTALI?AS

机译:园艺中有机氯农药残留的测定

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Foram analisados resíduos de Clorotalonil, Aldrin, Dieldrin,Heptacloro, Heptacloro epóxido, Endosulfan alfa,Endosulfan beta e Sulfato de Endosulfan nas seguinteshortali?as: alface, acelga, chicória, repolho, tomate,chuchu, batata, cenoura, mandioca e mandioquinha. Asamostras foram coletadas no restaurante da UniversidadeEstadual de Campinas, no período de abril/1998 a abril/2001 e nas Centrais de Abastecimento de Campinas, noperíodo de abril a agosto/2001. Os resíduos dosagrotóxicos organoclorados foram determinados porcromatografia a gás com detector de captura de elétrons(CG-DCE- 63Ni). Os limites de detec??o (LD) encontradospara Clorotalonil, Aldrin, Dieldrin, Heptacloro, Heptacloroepóxido, Endosulfan alfa, Endosulfan beta e Sulfato deEndosulfan foram 0,0006, 0,0006, 0,0008, 0,0006, 0,0007,0,0008, 0,0009 e 0,0016 mg/kg, e os limites dequantifica??o 0,002, 0,002, 0,003, 0,002, 0,003, 0,003,0,003 e 0,005 mg/kg, respectivamente. A recupera??omédia dos agrotóxicos analisados variou de 76,0 a 97,0%em repolho, de 90,0 a 103,0% em tomate e de 81,0 a106,0% em batata. Em todas as amostras de hortali?asanalisadas (n=151), os níveis residuais de agrotóxicosapresentaram-se abaixo dos limites de detec??o (LD) dométodo validado. DETERMINATION OF ORGANOCHLORINE PESTICIDES RESIDUES ONVEGETABLES Abstract Residues of Chlorotalonil, Aldrin, Dieldrin, Heptachlor, Heptachlor epoxide, alpha andbeta Endosulfan and Endosulfan sulfate were analysed in the following vegetables:lettuce, swiss chad, chicory, cabbage, tomato, chayote, potato, carrot, cassava andcassava specy. The samples were collected at the restaurant of the University ofCampinas, from April/1998 to April/2001 at the ?Centrais de Abastecimento de Campinas(CEASA)?, from April to August/2001. The organochlorine pesticide residues weredetermined by gas chromatography with an electron capture detector (ECD-63Ni). Thedetection limits of Chlorotalonil, Aldrin, Dieldrin, Heptachlor, Heptachlor epoxide, alphaand beta Endosulfan and Endosulfan sulfate were 0.0006, 0.0006, 0.0008, 0.0006,0.0007, 0.0008, 0.0009 and 0.0016 mg/kg respectively, and their quantification limitswere 0.002, 0.002, 0.003, 0.002, 0.003, 0.003, 0.003 and 0.005 mg/kg. The averagerecovery of the pesticides varied between 76.0 and 97.0% for cabbage, 90,0 to103.0% for tomato and 81.0 to 106.0% for potato. The samples analysed (n=151)showed pesticide levels below the detection limits of the validated method.
机译:以下分析了百菌清,艾氏剂,狄氏剂,七氯,七氯环氧化物,硫丹阿尔法,硫丹β和硫丹硫酸盐的残留物:生菜,唐莴苣,菊苣,卷心菜,番茄,佛手瓜,马铃薯,胡萝卜,木薯和木薯。从1998年4月/ 2001年4月/ 2001年4月在UniversidadeEstadual de Campinas的餐厅收集样品,并于2001年4月-2001年8月在Campinas的供应中心收集样品。用电子捕获检测器(CG-DCE-63Ni)通过气相色谱法测定有机氯有毒化学药品的残留量。百菌清,艾氏剂,狄氏剂,七氯,七氯环氧化物,硫丹阿尔法,硫丹β和硫酸硫丹的检出限(LD)为0.0006、0.0006、0.0008、0.0006、0.0007, 0.0008、0.0009和0.0016 mg / kg,定量限分别为0.002、0.002、0.003、0.002、0.003、0.003.0.003和0.005 mg / kg。被分析农药的平均回收率在白菜中为76.0%至97.0%,在番茄中为90.0%至103.0%,在马铃薯中为81.0%至106.0%。在所有分析过的蔬菜样品中(n = 151),农药残留量均低于验证方法的检测极限(LD)。蔬菜中有机氯农药残留的测定摘要分析了以下蔬菜中的氯霉素,艾氏剂,狄氏剂,七氯,七氯环氧化物,α和β硫丹和硫丹硫酸盐的残留物:莴苣,瑞士佛手瓜,瑞士乍得,菊苣木薯和木薯品种。从1998年4月/ 2001年4月/ 2001年4月/ 2001年4月-2001年8月在坎皮纳斯供应中心(CEASA)的坎皮纳斯大学餐厅采集样品。用电子捕获检测器(ECD-63Ni)通过气相色谱法测定有机氯农药的残留量。氯丁腈,艾氏剂,狄氏剂,七氯,七氯环氧化物,α和β硫丹和硫酸硫丹的检出限分别为0.0006、0.0006、0.0008、0.0006、0.0007、0.0008、0.0009和0.0016 mg / kg,其定量限分别为0.002、0.002、0.002、0.002、0.002、0.002、0.002、0.002 ,0.002、0.003、0.003、0.003和0.005 mg / kg。大白菜的平均农药回收率在76.0%至97.0%之间,番茄的平均回收率在90.0%至103.0%之间,马铃薯的平均回收率在81.0%至106.0%之间。分析的样品(n = 151)显示农药水平低于验证方法的检测极限。

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