共查询到18条相似文献,搜索用时 93 毫秒
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目的:建立并验证中药制剂男宝胶囊中农药残留量的检测方法.方法:采用气相色谱法测定有机氯农药残留量和有机磷农药残留量.结果:该方法线性良好,有机氯农药回收率达到90%以上(RSD≤6%,n=6),有机磷农药回收率达到90%以上(RSD≤5%,n=6).结论:经验证表明,该方法适用于本制剂中残留农药的检测. 相似文献
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目的建立测定18种中药材及饮片中有机磷和氨基甲酸酯类农药残留量的GC-MS方法。方法样品经乙腈-丙酮超声提取,经无水硫酸钠-硅镁型吸附剂-无水硫酸钠色谱柱净化,用GC-MS法测定18种中药材及饮片中有机磷和氨基甲酸酯类农药的残留量。结果有机磷和氨基甲酸酯类农药残留量测定的线性范围为0.8~3.2ng,相关系数r≥0.990,平均回收率为56.2%~118.5%,重复性RSD值为0.2%~11.2%,稳定性RSD值小于3%。其中敌敌畏、仲丁威、二嗪农、抗蚜威和马拉硫磷在107批药材中的含量均小于0.15mg·kg-1。结论该方法灵敏度高,净化效果好,符合农药残留的检测要求。 相似文献
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目的:建立潮汕地区3种中草药中10种有机磷农药的选择性多残留检测方法。方法:采用Qu ECh ERS法处理潮汕地区常用中草药白花蛇舌草、茅根和臭花,以气相色谱-串联质谱法为分析检测手段,建立10种有机磷农药的选择性多残留检测方法,分析不同中草药中有机磷农药总体残留水平、分布特征,并对其有机磷农药残留进行风险评估。结果:10种有机磷农药质量浓度在0.01~1.0μg/ml范围内,有机磷农药质量浓度与其峰面积之间呈良好线性关系,相关系数(r2)为0.9993~0.9997;检出限为1.0~3.0μg/kg,定量限为3.3~10.0μg/kg;加标回收率为90.3%~98.8%,相对标准偏差为1.2%~3.4%;潮汕地区随机采样的白花蛇舌草、茅根和臭花中,10种有机磷农药均未检出残留,不会对普通人群造成不可接受的长期膳食摄入风险。结论:该法准确度高、精密度好,适用于3种中草药中10种有机磷农药残留分布特征及风险评估。 相似文献
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目的 建立保健食品中敌敌畏等16种有机磷农药残留的气相色谱测定方法,了解浙江市场上植物或真菌为原料的保健食品中有机磷农药残留情况。方法 用乙腈提取样品中农药残留,使用Rtx-1701色谱柱分离目标物,使用带火焰光度检测器(FPD)的气相检测。结果 16种有机磷在0.1~2.0 mg·L-1内呈现良好的线性,定量限(S/N=10)均为0.05 mg·kg-1,检出限(S/N=3)在0.01~0.02 mg·kg-1内,在0.25,0.4,1.0 mg·kg-1 3个添加浓度水平下,16种有机磷的加样回收率为75%~120%。市场抽样90批保健品,有机磷检出12批,检出率为13.3%。结论 该方法简单、快速、准确,适用于保健品中有机磷农药残留的检测。 相似文献
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Simultaneous analysis of 17 organochlorine pesticides in natural medicines by GC/MS with negative chemical ionization 总被引:1,自引:0,他引:1
Tagami T Kajimura K Takagi S Satsuki Y Nakamura A Okihashi M Akutsu K Obana H Kitagawa M 《Yakugaku zasshi : Journal of the Pharmaceutical Society of Japan》2007,127(7):1167-1171
Many methods for the determination of pesticide residues in food have been reported. Although natural medicines should be confirmed to be as safe as food, few methods for the determination of pesticide residues in natural medicines have been reported. In this study, 17 organochlorine pesticides were detected in natural medicines using GC/MS with negative chemical ionization (NCI). GC/MS with NCI can detect halogenated pesticides selectively and thus is suitable for the detection of organochlorine pesticides. This study indicates that GC/MS with NCI is useful for analyzing organochlorine pesticides in natural medicines. 相似文献
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目的:建立了基于基质分散固相萃取技术的昆明山海棠中氯氰菊酯、溴氰菊酯、三氟氯氰菊酯、氰戊菊酯、甲氰菊酯、敌敌畏、马拉硫磷、对硫磷、乐果、甲拌磷、毒死蜱、甲胺磷、甲基对硫磷等13种农药的多成分残留分析方法。方法:前处理中以乙腈为提取溶剂、采用弗罗里硅土为分散净化剂的固相萃取方法,并利用超高效液相色谱-串联质谱(UPLC-MS/MS)在多反应离子监测模式(MRM)下进行检测,外标法定量。结果:在0.25~250 ng·mL-1添加水平范围内,13种农药的平均回收率为76.2%~105.5%;相对标准偏差(RSD,n=5)为1.1%~13.1%;方法检出限(LOD)在0.02~7.60 μg·kg-1范围内;定量限(LOQ)在0.05~25.95 μg·kg-1范围内。结论:该方法快速简便、稳定可靠,适用于有昆明山海棠中机磷和拟除虫菊酯类农药残留的检测。 相似文献
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Parisa Sarkhail Masud Yunesian Reza Ahmadkhaniha Pantea Sarkheil Noushin Rastkari 《Daru : journal of Faculty of Pharmacy, Tehran University of Medical Sciences》2012,20(1):1-5
The frequent occurrence of pesticide residues in herbal materials was indicated by previous studies. In this study, the concentration of some of the organophosphorus pesticides including parathion, malathion, diazinon and pirimiphos methyl in different kinds of medicinal plants were determined. The samples were collected randomly from ten local markets of different areas of Iran. At the detection limit of 0.5 ng g-1, parathion and pirimiphos methyl were not detected in any of the samples. Some amounts of malathion and diazinon were found in Zataria, Matricaria chamomile, Spearmint and Cumin Seed samples while, the concentrations of target organophosphorus pesticides in Borage samples were below the detection limits of the methods which could be a result of intensive transformation of organophosphorus pesticides by Borage. In addition the organophosphorus pesticides were detected in all of the samples below the maximum residue levels (MRLs) proposed by the international organizations. 相似文献
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Simultaneous analysis of 10 pyrethroid pesticides in natural medicines by GC/MS with negative chemical ionization 总被引:1,自引:0,他引:1
Tagami T Kajimura K Satsuki Y Nakamura A Okihashi M Kitagawa Y Takatori S Kitagawa M 《Yakugaku zasshi : Journal of the Pharmaceutical Society of Japan》2006,126(10):991-995
Many methods for the determination of pesticides residues in food have been reported. Although natural medicines should be confirmed as safe as food, only a few methods for the determination of pesticide residues in natural medicines have been reported. In this study, 10 pyrethroid pesticides were detected in natural medicines by GC/MS with negative chemical ionization (NCI). GC/MS with NCI can detect halogenated pesticides selectively, and thus is suitable for the detection of pyrethroid pesticides. This study indicates that GC/MS with NCI is useful for analyzing pyrethroid pesticides in natural medicines. 相似文献
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固相萃取-气相色谱串联质谱法测定温莪术中19种有机氯和有机磷农药残留 总被引:1,自引:0,他引:1
目的:建立固相萃取-气相色谱串联质谱法测定温莪术中11种有机磷和8种有机氯农药残留,对10种不同批次的温莪术样品进行农药残留测定。方法:温莪术样品用有机溶剂萃取法进行提取,提取溶剂选为乙腈,C18固相萃取小柱净化提取液,用气相色谱-质谱仪分析,采用选择离子模式测定,外标法定量。结果:19种农药成分的峰面积与其质量浓度均有良好的线性关系,相关系数在0.991~1.000。19种农药成分的加标回收率为60.5%~109.3%,RSD为3.9%~10.5%。结论:该方法简便、快速,灵敏度高,重复性好,能够准确地检测温莪术中19种农药残留。 相似文献