日本開發(fā)農(nóng)殘自動(dòng)分析儀 50分鐘完成檢測(cè)
發(fā)布時(shí)間：
2022-11-16
作者：
據(jù)日本媒體消息，宮崎縣綜合農(nóng)業(yè)試驗(yàn)場(chǎng)、島津制作所、大阪大學(xué)、神戶大學(xué)組成的研發(fā)小組，開發(fā)了短時(shí)間內(nèi)全自動(dòng)分析農(nóng)作物中殘留農(nóng)藥成分的裝置。
使用該裝置、以前花近一周的分析現(xiàn)只需50分鐘就可完成。宮崎縣從3月末開始將使用該裝置進(jìn)行分析。
據(jù)宮崎縣報(bào)導(dǎo)，在日本國內(nèi)使用的農(nóng)藥成分約有400種，世界上約有800種。以前各種成分的檢測(cè)方法各異，而且使用有機(jī)溶劑進(jìn)行提取也很費(fèi)時(shí)間。
該研發(fā)小組利用“超臨界流體”在高溫、高圧下同時(shí)擁有液體和氣體特性，具有高提取能力的性質(zhì)，使用二氧化碳等超臨界流體，省去了提取相關(guān)的前處理過程。建立了提取、分析為一體，可同時(shí)檢測(cè)500種成分的全自動(dòng)檢測(cè)體系。
該裝置中有機(jī)溶劑的使用量可降低到過去的十分之一。并可以切斷樣品和空氣的接觸，可使用于氧化分解而難于檢測(cè)的成分的檢測(cè)上。
Miyazaki prefecture comprehensive agriculture proving ground, according to Japanese media, shimadzu, Osaka university, research and development team, composed of kobe university developed in a short period of time automatic device for the analysis of residual pesticides in crop composition.
The analysis, which used to take nearly a week, now takes only 50 minutes. Miyazaki prefecture will use the device for analysis starting in late march.
According to miyazaki prefecture, there are about 400 pesticides used in Japan and 800 in the world. Previous testing methods for various ingredients varied and extraction with organic solvents took time.
The research team used "supercritical fluid" under high temperature, high 圧 has both liquid and gas features, properties, with high extraction ability using co2 supercritical fluid, such as eliminating the extract relevant pretreatment process. An automatic detection system was established for extracting and analyzing 500 components simultaneously.
The amount of organic solvents used in the device can be reduced to one tenth of the past. It can also cut off the contact between samples and air and can be used for the detection of components that are difficult to detect due to oxidation decomposition.