[{"ID":"1993","ParentID":"1904","MainID":"1904","CompanyID":"173711","Title":"農(nóng)藥殘留快速測(cè)定儀","HitNumber":"129","CreateTime":"2021/9/16 15:42:20","UpdateTime":"2021/10/12 8:41:11","RecommendNum":"0","Picture":"2/20210916/637674037036370406129.png","PictureDomain":"img77","MainTitle":"農(nóng)藥殘留快速測(cè)定儀","Detail":"深芬儀器CSY-N10農(nóng)藥殘留快速測(cè)定儀基于酶促反應(yīng)動(dòng)力學(xué)原理，被測(cè)樣品如含有機(jī)磷類或氨基甲酸酯類農(nóng)藥，將會(huì)抑制膽堿酯酶的活性，影響顯色體系的反應(yīng)速度，通過(guò)測(cè)定顯色體系吸光度隨時(shí)間的變化率來(lái)測(cè)量待測(cè)樣品中的農(nóng)藥殘留量（抑制率）。有機(jī)磷和氨基甲酸酯類農(nóng)藥對(duì)膽堿酯酶正常功能有抑制作用，其抑制率與農(nóng)藥的濃度呈正相關(guān)系。正常情況下，酶催化神經(jīng)傳導(dǎo)代謝產(chǎn)物（乙酰膽堿）水解，其水解產(chǎn)物顯色劑反應(yīng)，產(chǎn)生黃色物質(zhì)，用農(nóng)藥殘留檢測(cè)儀器測(cè)定吸光度隨時(shí)間的變化值，計(jì)算出抑制率，通過(guò)抑制率可以判斷出樣品中是否含有有機(jī)磷","Author":"王壹飛"}]