农药残留,Pesticide residue
1)Pesticide residue农药残留
1.Solutions to matrix-induced response enhancement in pesticide residue analysis by gas chromatography;气相色谱分析农药残留的基质效应及其解决方法
2.Development of pesticide residue analyzing technology in fruirts and vegetables;果蔬中农药残留分析检测技术的发展
英文短句/例句
1.minimizing pesticide residue使农药残留量降至最低值
2.dichloromethane for pesticide residue analysis农药残留量的测定用二氯甲
3.Study on the Rapid Determination of Pesticide Residues in Fruits and Vegetables;果蔬中农药残留快速测定方法的研究
4.Bioavailability of Pesticide Residues in Soil to Earthworms;土壤中农药残留对蚯蚓的生物有效性
5.Study on the Degradation of Methamidophos Residued by Microorganism;甲胺磷农药残留的微生物降解的研究
6.Application of Gel Permeation Chromatography in Pesticide Residue Analysis;凝胶色谱法在农药残留分析中的应用
7.Safety Assessment of Pesticide Residues in Tea Soup;茶汤中农药残留及其安全性评估研究
8.Studies on Analysis of Pesticides Residue with HPTLC;高效薄层色谱法(HPTLC)分析农药残留
9.Research on the Immunoassay Technology for the Deltamethrin Residue;溴氰菊酯农药残留免疫检测技术研究
10.Study on the Rapid Testing and Removal Technology of the Pesticide Residue on the Vegetables;蔬菜中农药残留速测技术及清除研究
11.The Safety Evaluation on the Basis of Analysis of Pesticide Residue in Export Vegetables;出口蔬菜农药残留分析与安全性评价
12.The Study on the Fast Detection Method for Pesticide Residues with Bio-enzyme;酶抑制法农药残留快速检测技术研究
13.Development and Application of Immunoassay Techniques for Pesticide Residues;农药残留免疫检测技术及其应用研究
14.The Fast Detection Technology of Organophosphorus and Carbamate Pesticides Residue by Immobilized-esterase and the Application Research;农药残留固化酶速测技术及应用研究
15.Pesticide Residues Detection System Development Based on Enzyme Electrode;酶电极法农药残留量检测系统的开发
16.An Investigation of the Present Conditions of the Pesticide Residues in the Food;食品农药残留分析方法的现状与展望
17.Present Situation and Countermeasures of Tea s Pesticide Residues in Fujian Producing Areas;福建产区茶叶中农药残留现状及对策
18.Study on the Method of Determination and Removal of Pesticide Residues in Chinese Herbal Medicines;中药材中残留农药的测定及脱除研究
相关短句/例句
pesticide residues农药残留
1.Application of enzyme-linked immunosorbent assays in analysis ofpesticide residues in food;酶联免疫技术及其在食品农药残留分析中应用
2.Study on the detection ofpesticide residues in vegetable with cholinesterase extracted from wheat;小麦中胆碱酯酶的提取及其在蔬菜农药残留检测中的应用研究
3.Study on screening of cholinesterase for the rapid detection ofpesticide residues;农药残留快速检测用酶——胆碱酯酶的筛选
3)Pesticides residues农药残留
1.Progress of molecular imprinting technique on the determination of pesticides residues;用于农药残留检测的分子印迹技术研究进展
2.A quick method for the detection of six kinds of organophosphorus pesticides residues in vegetable has been established in this paper which contains extracting the organophosphorus pesticides from vegetable with acetone and dichloromethane and then separating them through the DB-17 capillary column, and in the end accurately measuring by gas chromatograph with flame photometric detector.本方法符合国家标准对农药残留量测定方法的要求,定性和定量准确,可快速同时测定出蔬菜中残留的敌敌畏、甲胺磷、乙酰甲胺磷、久效磷、甲基对硫磷和毒死蜱等6种有机磷农药。
3.Ultrasonic extraction was used in the determination of pesticides residues in tea and a method for determination of organophosphorous pesticides residues in tea sample has been developed with gas chromatography with flame photometric detector(GC-FPD).将超声提取技术用于检测茶叶中的农药残留,建立了火焰光度检测器气相色谱法定量测定茶叶中有机磷农药残留的分析方法。
4)pesticides residue农药残留
1.The extensive use of pesticides in environment and the difficulty of their residue detection make the analysis ofpesticides residue the foreland and hotspot in environmental science.农药在环境中的广泛应用以及农药残留分析的困难,使得环境中农药的残留分析成为国际上环境科学研究的前沿和热点。
2.A quickly method for determination of seven organophosphoruspesticides residue in vegetables was studied by HP-608 capillary column and FPD detector.本文针对7种有机磷农药在蔬菜中的农药残留,建立快速的测试方法。
3.It is serious that thepesticides residues exceeded maximum residue limit in Chinese edible fungi.食用菌中农药残留超标,不仅危害广大人民的身体健康,同时也影响到食用菌进入国际市场。
5)pesticide residual农药残留
1.The effect of bagging on the quality andpesticide residual of Red Fuji apple;套袋对红富士苹果果实品质和农药残留的影响
2.An initial experiment was carried out to detectpesticide residuals by using laser hyperspectral imaging.初步探讨了运用激光图像技术来检测水果表面农药残留的方法。
3.The initial experiment researching was completed to detectpesticide residual using laser hyper spectral imaging.本文初步探讨了运用激光高光谱图像技术来快速无损检测水果表面农药残留的方法。
6)residue of pesticide农药残留
延伸阅读
农药残留在农业生产中施用农药后一部分农药直接或间接残存于谷物、蔬菜、果品、畜产品、水产品中以及土壤和水体中的现象。农药残留问题是随着农药大量生产和广泛使用而产生的。第二次世界大战以前,农业生产中使用的农药主要是含砷或含硫、铅、铜等的无机物,以及除虫菊酯、尼古丁等来自植物的有机物。第二次世界大战期间,人工合成有机农药开始应用于农业生产。到目前为止,世界上化学农药年产量近200万吨,约有1000多种人工合成化合物被用作杀虫剂、杀菌剂、杀藻剂、除虫剂、落叶剂等类农药。农药尤其是有机农药大量施用,造成严重的农药污染问题,成为对人体健康的严重威胁。目前使用的农药,有些在较短时间内可以通过生物降解成为无害物质,而包括DDT在内的有机氯类农药难以降解,则是残留性强的农药(见有机氯农药污染)。根据残留的特性,可把残留性农药分为三种:容易在植物机体内残留的农药称为植物残留性农药,如六六六、异狄氏剂等;易于在土壤中残留的农药称为土壤残留性农药,如艾氏剂、狄氏剂等;易溶于水,而长期残留在水中的农药称为水体残留性农药,如异狄氏剂等。残留性农药在植物、土壤和水体中的残存形式有两种:一种是保持原来的化学结构;另一种以其化学转化产物或生物降解产物的形式残存。残留在土壤中的农药通过植物的根系进入植物体内。不同植物机体内的农药残留量取决于它们对农药的吸收能力。不同植物对艾氏剂的吸收能力为:花生>大豆>燕麦>大麦>玉米。农药被吸收后,在植物体内分布量的顺序是:根>茎>叶>果实。农药进入河流、湖泊、海洋,造成农药在水生生物体中积累。在自然界的鱼类机体中,含有机氯杀虫剂相当普遍,浓缩系数为5~40 000倍(见表)。农药进入粮食、蔬菜、水果、鱼、虾、肉、蛋、奶中,造成食物污染,危害人的健康。一般有机氯农药在人体内代谢速度很慢,累积时间长。有机氯在人体内残留主要集中在脂肪中。如 DDT在人的血液、大脑、肝和脂肪组织中含量比例为1:4:30:300;狄氏剂为1:5:30:150。由于农药残留对人和生物危害很大,各国对农药的施用都进行严格的管理,并对食品中农药残留容许量作了规定。如日本对农药实行登记制度,一旦确认某种农药对人畜有害,政府便限制或禁止销售和使用。