农药残留检测,Determination of pesticide residues
1)Determination of pesticide residues农药残留检测
英文短句/例句
1.Determination of 26 pesticide residues in vegetables by gas chromatography蔬菜中26种农药残留检测方法的研究
anic Pesticide Residue Testing in the Huoxiangzhengqi Pills and Herbs藿香正气丸及其原药材中有机氯农药残留检测
3.Studies on the Determination of Pesticide Residues by Gas Chromatography Mass Spectrograph;气相色谱质谱联用法对农药残留检测的研究
4.Research on Temperature Calibration and New Enzyme in Determination of Organophosphate Pesticide Residues;有机磷农药残留检测的温度校正和新酶源研究
5.Study on Developing a Systemic Multi-residue Method for Detecting Pesticide Residues in Vegetables、Fruits and Foods;蔬菜、水果及粮食农药残留检测方法的建立
6.Research of Meltireside Screen Method in Vegetables and Fruits;果蔬中农药多残留快速检测技术研究
7.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
8.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
9.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
10.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
11.Determination of organophosphate pesticide residues by cloud point extraction浊点萃取用于有机磷农药残留的检测
12.Study on Determination of Organic Pesticide Residues in Chinese Herbal Medicine;中药中有机农药残留量检测方法的研究
13.Multiresidue Determination of 13 Pesticides by SFE-GC/MS in Chinese Herbal Medicine中草药中13种农药多残留SFE-GC/MS检测方法研究
14.Determination of Organochlorine Pesticide Residues in Astragalus中药材黄芪中农药残留量检测方法研究
15.Study on the Rapid Detection Method of Endosulfan Residues in Agricultural Products;农产品中硫丹农药残留快速检测方法的研究
16.The notice during the test of chemicals remnant in farm products农产品残留农药检测操作过程注意事项
17.Establishing of Usual-Used Pesticides NCI Datebase and Determination of Pesticide Residuces in 48 Kinds of Traditional Chinese Medicine;常用农药NCIMS谱库的建立及48种中药材中农药残留量的检测
18.Rapid Detection Technologies and Sample Pretreatment Means in Determination of Pesticide Residues;农药残留的快速检测和前处理技术的研究
相关短句/例句
pesticides residue determination农药残留量检测
1.On pre-treatment ofpesticides residue determination;简论农药残留量检测中的样品前处理技术
3)Determination of Pesticides Residues农药残留的检测
4)pesticide multi-residues determination农药多残留检测
5)Rapid detection of pesticide residues农药残留量快速检测
6)the detection of pesticide residues农药残留检测技术
延伸阅读
茶叶农药残留量检验茶叶农药残留量检验pesticide residues inspection of tea分析。纯化液中,某些农药经色谱或其它方法进行侧定,最常用的是气液色谱法和薄层层析法两种。气液色谱法,一般采用电子捕获检侧器、氮碑检侧器或火焰光度检侧器进行检侧。薄层层析法,用氧化铝、硅胶作吸附剂,用粘合剂涂在薄板玻瑞上,活化后,将纯化液浓缩,点在其上,用不同极性的溶剂使其展开,分离定t。其他尚有高效液相色谱法、高效薄层分析法等。定性和定t①定性:可采用气液色谱法,用不同极性色谱柱,对照标准农药保留时间定性。也可用薄层层析法或其他化学衍生法进一步验证。②定量:用气液色谱分析侧出的某一农药的峰面积或峰高,与已知浓度的标准农药面积、峰高相对照定量,具体采用方法,有外标法和内标法两种。薄层层析定量,则要侧出样品中农药斑点面积,对照已知浓度标准农药斑点面积,计算出样品中的农药浓度。峰面积、峰高、斑点面积、保留时间、比移值,可用手工方法侧出,也可用徽型电脑积分仪、薄层层析扫描仪测定。,今书目 樊.芳主摘:《农药残留t分析与检侧》,上海科技出版社,1982,上海。 (蒋德姆)茶叶农药残留t检验(pestieide residu·es insPeetion of tea)茶叶检验之一。检测因防治病虫害施药或其恤原因而残存于茶叶中的农药及其有毒代谢产物的技术措施。茶叶中农药最高残留限量,是根据某一农药的每人(平均体重50一70千克)每天允许摄入量、普查所得的实际残留量(异常值除外)以及每人每天茶叶饮用量等因子计算出允许限量,再乘以一定的安全系数后订出的。农药残留t用 ppm作为计算单位,不少国家对此订有相应的限t标准和管理条例。检验方法有一次检侧法和单一农药检测法之分,前者又称一步法,即一次分析可检测出多种残留农药,后者以茶叶中某一特定农药作为检侧对象。侧定方法与步骤如下:茶样制备有茶叶法和茶汤法两种。茶叶法是将样品磨碎通过20目筛网,装入玻瑞瓶内备用。茶汤法是取样4一6克,加沸水量是茶样量的60倍,浸泡5分钟,过滤后备用。抽提方法抽提溶剂有正己烷、石油雌、二氛甲烷、抓仿、乙酸乙酸、丙砚、甲醉、乙腑等。抽提方法有如下5种:①妈碎法:在组织捣碎机中,高速拐碎2一3分钟,如乳化,则可用离心分离或其他方法破乳过滤,滤渣再抽提一次,合并滤液定容。