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现代农用化学品与农产品的数量和质量安全密切相关,农药残留问题一直是大众关注的焦点。采用灵敏、准确、可靠的质谱技术能够准确地对残留农药进行定性和定量分析,从而为农药登记、农药残留摄入风险评估、环境有益生物安全、食品及其加工品中农药残留监测与监管等方面提供有力的技术支撑,保障环境安全和人类健康。本文综述了各种质谱及其联用技术的发展历史及各时期的特点,对主流质谱技术在农药多残留分析中的应用进行综合分析,重点阐述其在食品、环境、生物等领域的应用。此外,还概述了质谱及其联用技术在各国标准方法中的应用,并对比了国际食品法典委员会和欧盟等组织对质谱定性定量分析方法的要求。总之,自20世纪90年代以来,四极杆等质谱仪、色谱-质谱联用设备、多级质谱以及高分辨质谱技术在农药残留分析领域呈现出主流趋势;高通量筛查技术、现场可移动和桌面型质谱联用、原位电离技术、无靶标筛查平台以及简洁快速的样品前处理净化技术是未来研究与发展的主要方向。 相似文献
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食品中农药残留检测样品检测,能够及时发现存在的问题,加强防范和处置,切实保证源头上食品的安全。文章首先阐述了食品中农药残留检测技术以及样品前处理技术的内涵,然后对目前食品中农药残留检测的样品前处理技术体系进行了分析,最后提出了相关的对策,以供参考。 相似文献
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《农业开发与装备》2020,(4)
农药残留是指在食用作物上使用农药后,残留在食品上或食品中的农药。许多化学农药可以在人体内和环境中积累而达到有害水平,尤其是有机氯类农药。但是,在农业生产活动中,农药在防治病虫害、除草等方面有巨大的作用。随着现代科学技术的进步与发展,每年都会产生新品种农药,使用量也在不断增加,农药造成的环境污染与食物安全问题日益突出。目前,全球各国政府都在加强农产品农药残留的监测力度,对农产品质量安全的要求进一步提高,随之而来的快速检测农残技术也得到了大力发展。渭源县对农药残留的监测及检测主要采取农药残留快速检测方法,主要综述了渭源县主要特色农产品的检测现状及发展方向。 相似文献
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近年来,国内因农药残留引起的恶性食品污染、出口瓜果蔬菜等农产品中农药残留量超标事件不断发生,农药残留问题已经引起了人民和政府的高度重视.随着科学技术的进步、经济的迅速发展和人民生活水平的提高,人类对自身生存的安全有了更加深刻的理解,如何去除农产品中的农药残留也已成为研究热点.农药是农业生产中防治病、虫、草害的主要生产资料,对保证农业稳产增产、提高农产品质量、改善人民生活水平起着非常重要的作用. 相似文献
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长治市蔬菜农药残留的现状与对策 总被引:1,自引:0,他引:1
介绍了长治市蔬菜农药残留的现状及其危害,分析了造成蔬菜农药残留的原因,并提出控制农药残留的对策,以期能对控制蔬菜农药残留提高参考,提高人民生活水平。 相似文献
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GC/MS/MS和LC/MS/MS在现代农产品分析中的应用 总被引:1,自引:0,他引:1
介绍了食品安全的影响及食品中有害物质分析的特点,着重介绍了GC/MS/MS和LC/MS/MS法在食品中的农药残留和兽药残留的分析应用。 相似文献
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农药残留给环境和人类健康带来严重危害。随着农药种类的不断增加,农药残留的检测技术也需要不断的更新,检测技术的不断发展,促使样品前处理成为一个重要课题。本文简单介绍了农药残留和农药残留量的影响因素,农药残留分析环节和目的,前处理的步骤、要求,主要介绍了固相萃取、固相微萃取、超临界流体萃取等九种样品前处理技术的原理、优缺点和发展形势。 相似文献
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乳制品是高营养食品,不仅含有丰富的脂肪、蛋白质和碳水化合物,而且含有人体必需的维生素和微量元素。但是,乳制品产业链长,饲料种植施用的农药经迁移转化后进入生乳,再经加工进入乳制品,由于饲料品种多,施用的农药品种更多,最后进入乳与乳制品中仍有相当数量的品种。国标GB2763-2005《食品中农药最大残留限量》中规定了136种农药残留限量,但只有六六六、滴滴涕、林丹三种,对乳与乳制品进行了限量规定,其它农残均未见规定。乳与乳制品中农药残留的底数不清,潜在的危害和风险依然存在。现根据国标GB2763-2005《食品中农药最大残留限量》,对乳与乳制品中有可能存在农药残留进行分析。 相似文献
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建立了在线凝胶色谱-串联三重四极杆质谱(GPC-GC-MS/MS)法测定大豆油中的42种农药残留。采用在线凝胶色谱进行在线净化,除去大豆油中大部分油脂,有效缩短样品前处理时间;结合多反应监测(MRM)采集方式,可减少基质干扰,提高方法的选择性。结果表明:在1~50 μg/L浓度范围内,大部分农药的线性相关系数均在0.999以上;方法检出限为0.02~2.59 μg/kg,方法定量限为0.08~8.62 μg/kg;在10、50、300 μg/kg加标浓度下,农药的加标回收率在70.4%~119%之间。以α-666等11种农药为例,比较了GPC-GC-MS/MS法、GPC-GC/MS法、GC-MS/MS法的实验结果,发现采用GPC-GC-MS/MS法的MRM数据采集模式测定大豆油中农药残留具有良好的抗基质干扰能力,可获得最低的方法检出限及最高的回收率。该方法操作简单、灵敏度高、稳定性好,可用于大豆油中农药残留的测定,也适用于复杂基质中痕量农药残留的定性和定量分析。 相似文献
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Combined liquid chromatography-mass spectrometry using electrospray or atmospheric-pressure chemical ionization has become an important tool in the quantitative analysis of pesticide residues in various matrices in relation to environmental analysis, food safety, and biological exposure monitoring. One of the major problems in the quantitative analysis using LC-MS is that compound and matrix-dependent response suppression or enhancement may occur, the so-called matrix effect. This article reviews issues related to matrix effects, focusing on quantitative pesticide analysis, but also paying attention to expertise with respect to matrix effects acquired in other application areas of LC-MS, especially quantitative bioanalysis in the course of drug development. 相似文献
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Nowadays, the detection of pesticide residues in the food is still the focus in the word wide, especially the multiresidues of pesticide simultaneously detection technology is becoming more and more important as the regulation of pesticide control more strict. The Varian 1 200 L LC-MS/MS is used to successfully analyze the 73 pesticides in the fruit simultaneously and get a good result. 相似文献
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Liquid chromatography-mass spectrometry (LC-MS) has become an invaluable technique for the control of pesticide residues to ensure food safety. After an introduction about the regulations that highlights its importance to meet the official requirements on analytical performance, the different mass spectrometers used in this field of research, as well as the LC-MS interfaces and the difficulties associated with quantitative LC-MS determination, are discussed. The ability to use practical data for quantifying pesticides together with the option of obtaining structural information to identify target and non-target parent compounds and metabolites are discussed. Special attention is paid to the impact of sample preparation and chromatography on the ionization efficiency of pesticides from food. The last section is devoted to applications from a food safety point of view. (c) 2006 Wiley Periodicals, Inc. 相似文献
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Helen V. Botitsi Spiros D. Garbis Anastasios Economou Despina F. Tsipi 《Mass spectrometry reviews》2011,30(5):907-939
Analysis of pesticides and their metabolites in food and water matrices continues to be an active research area closely related to food safety and environmental issues. This review discusses the most widely applied mass spectrometric (MS) approaches to pesticide residues analysis over the last few years. The main techniques for sample preparation remain solvent extraction and solid‐phase extraction. The QuEChERS (Quick, Easy, Cheap, Effective, Rugged, Safe) approach is being increasingly used for the development of multi‐class pesticide residues methods in various sample matrices. MS detectors—triple quadrupole (QqQ), ion‐trap (IT), quadrupole linear ion trap (QqLIT), time‐of‐flight (TOF), and quadrupole time‐of‐flight (QqTOF)—have been established as powerful analytical tools sharing a primary role in the detection/quantification and/or identification/confirmation of pesticides and their metabolites. Recent developments in analytical instrumentation have enabled coupling of ultra‐performance liquid chromatography (UPLC) and fast gas chromatography (GC) with MS detectors, and faster analysis for a greater number of pesticides. The newly developed “ambient‐ionization” MS techniques (e.g., desorption electrospray ionization, DESI, and direct analysis in real time, DART) hyphenated with high‐resolution MS platforms without liquid chromatography separation, and sometimes with minimum pre‐treatment, have shown potential for pesticide residue screening. The recently introduced Orbitrap mass spectrometers can provide high resolving power and mass accuracy, to tackle complex analytical problems involved in pesticide residue analysis. © 2010 Wiley Periodicals, Inc., Mass Spec Rev 30:907–939, 2011 相似文献