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Development and evaluation of an automated multi-channel multiplug filtration cleanup device for pesticide residue analysis on mulberry leaves and processed tea
RSC Advances ( IF 3.9 ) Pub Date : 2020-1-14 , DOI: 10.1039/c9ra09660d Yangliu Wu 1 , Quanshun An 1 , Jun Wu 1 , Ping Li 2 , Jianhong He 2 , Canping Pan 1
RSC Advances ( IF 3.9 ) Pub Date : 2020-1-14 , DOI: 10.1039/c9ra09660d Yangliu Wu 1 , Quanshun An 1 , Jun Wu 1 , Ping Li 2 , Jianhong He 2 , Canping Pan 1
Affiliation
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An automated multi-channel multiplug filtration cleanup (m-PFC) device was designed and developed. m-PFC columns were suitably installed in the device. The cycle times, speed and nitrogen pressure parameters of the m-PFC column were optimized. The device was utilized to analyze the 82 pesticide residues in fresh mulberry leaves and processed tea with GC-MS/MS detection. Method validation was performed on 82 pesticide residues in fresh mulberry leaves and processed tea at spiked levels of 0.01, 0.05 and 0.5 mg kg−1. The fortified recoveries of 82 pesticides were 72–115% and the relative standard deviations were 1–15%, except for diniconazole and clodinafop-propargyl in mulberry leaves. The automated multi-channel m-PFC device was successfully applied to detect the pesticide residues in fresh mulberry leaves and processed tea samples. With comparison to the conventional QuEChERS method, the current method using this device did not need additional vortex or centrifugation steps, and could process 48–64 samples in about one hour. The automated m-PFC method saved labor and improved the precision and was shown to be efficient and practical in pesticide residue analysis.
中文翻译：
桑叶及加工茶农药残留分析自动化多通道多塞过滤净化装置的研制与评价
设计和开发了一种自动多通道多塞过滤净化（m-PFC）装置。m-PFC 柱被适当地安装在设备中。优化了 m-PFC 柱的循环时间、速度和氮气压力参数。该装置用于对新鲜桑叶和加工茶叶中的 82 种农药残留进行 GC-MS/MS 检测。对 0.01、0.05 和 0.5 mg kg -1加标浓度的新鲜桑叶和加工茶中的 82 种农药残留进行了方法验证. 82 种农药的加标回收率为 72-115%，相对标准偏差为 1-15%，桑叶中的地康唑和炔草酯除外。自动化多通道m-PFC装置成功应用于新鲜桑叶和加工茶叶样品中农药残留的检测。与传统的 QuEChERS 方法相比，使用该设备的当前方法不需要额外的涡旋或离心步骤，并且可以在大约一小时内处理 48-64 个样品。自动化的 m-PFC 方法节省了劳动力并提高了精密度，在农药残留分析中被证明是高效实用的。
更新日期：2020-01-14
中文翻译：
桑叶及加工茶农药残留分析自动化多通道多塞过滤净化装置的研制与评价
设计和开发了一种自动多通道多塞过滤净化（m-PFC）装置。m-PFC 柱被适当地安装在设备中。优化了 m-PFC 柱的循环时间、速度和氮气压力参数。该装置用于对新鲜桑叶和加工茶叶中的 82 种农药残留进行 GC-MS/MS 检测。对 0.01、0.05 和 0.5 mg kg -1加标浓度的新鲜桑叶和加工茶中的 82 种农药残留进行了方法验证. 82 种农药的加标回收率为 72-115%，相对标准偏差为 1-15%，桑叶中的地康唑和炔草酯除外。自动化多通道m-PFC装置成功应用于新鲜桑叶和加工茶叶样品中农药残留的检测。与传统的 QuEChERS 方法相比，使用该设备的当前方法不需要额外的涡旋或离心步骤，并且可以在大约一小时内处理 48-64 个样品。自动化的 m-PFC 方法节省了劳动力并提高了精密度，在农药残留分析中被证明是高效实用的。
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