| 研发、生产、销售厂家：武汉格莱莫检测设备有限公司武汉格莱莫检测设备有限公司 ：13545068882 027-86619996,glmgs一、产品简介One, product introduction 该产品根据有机磷和氨甲酯类农能抑制昆虫中枢和周围神经系统中乙酰胆碱酶的活性，造成神经传导介乙酰胆碱的积累，影响正常传导，使昆虫中至死，根据这一昆虫理学原理，用在对农残留的检测中，如果蔬菜或水果的提取液中不含有机磷和氨甲酯类农或残留较低，酶的活性不会被抑制，实验中加入的底物（乙酰胆碱）被酶水解或少部份被水解，水解产物与加入的显色剂反应产生颜色。反之，如果蔬菜或水果的提取液中含有一定的有机磷或氨甲酯类农，酶的活性会被抑制，实验中加入的底物（乙酰胆碱）不能被酶水解，从而不显色或颜色变化很小，用的FITT农残留快速测试仪测定吸光度间的变化，计算出抑制率，可以判断蔬菜或水果中是否含有有机磷和氨甲酯类农的残留情况。 The product according toanophosphorus and carbamate pesticides can inhibit insects in the central and peripheral nervous system acetylcholine enzyme activity, resulting in nerve conduction medium acetylcholine accumulation, affecting the normal conduction, the insect poisoning to death, according to the principles of insect toxicology, used in the detection of pesticide residues, if vegetables or fruit extract not containinganophosphorus and carbamate pesticides or residue is low, the enzyme activity is not inhibited, experiment by adding substrate ( acetylcholine ) by enzymatic hydrolysis or small part by hydrolysis, hydrolysis and adding chromogenic reagent reaction to produce color. Conversely, if the vegetable or fruit extract contains a certain amount ofanophosphate or carbamate pesticide, the enzyme activity can be inhibited, experiment by adding substrate ( acetylcholine ) cannot be enzymatic hydrolysis, thereby not color or the color change is very small, with a dedicated FITT pesticide residue rapid tester of absorbance with the change of time, calculate the inhibition rate, we can judge whether the vegetables or the fruit containinganophosphorus and carbamate pesticide residue.二、技术指标 Two, technical indicators★波 长：410nmOf wave length: 410nm★波长准确度：≤±2nmOf wavelength accuracy: < / 2nm★透射比示值误差：＜3.0%The transmission ratio of the indication error: < 3%★透射比重复性：≤1.0%Transmission ratio of repeatability: 1%★光电流漂移：≤0.5%(3分钟)Of light current drift: less than 0.5% ( 3 minutes )★ |
|