日本开发农残自动分析仪 50分钟完成检测
发布时间：
2022-11-16
作者：
据日本媒体消息，宫崎县综合农业试验场、岛津制作所、大阪大学、神户大学组成的研发小组，开发了短时间内全自动分析农作物中残留农药成分的装置。
使用该装置、以前花近一周的分析现只需50分钟就可完成。宫崎县从3月末开始将使用该装置进行分析。
据宫崎县报导，在日本国内使用的农药成分约有400种，世界上约有800种。以前各种成分的检测方法各异，而且使用有机溶剂进行提取也很费时间。
该研发小组利用“超临界流体”在高温、高圧下同时拥有液体和气体特性，具有高提取能力的性质，使用二氧化碳等超临界流体，省去了提取相关的前处理过程。建立了提取、分析为一体，可同时检测500种成分的全自动检测体系。
该装置中有机溶剂的使用量可降低到过去的十分之一。并可以切断样品和空气的接触，可使用于氧化分解而难于检测的成分的检测上。
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.