国产99久久久国产精品成人免费Ijizz在线jizzIwww.久久成人I国产精品suv一区二区三区I欧美激情综合色综合啪啪五月I中文字幕精品久久久久人妻红杏ⅰI亚洲国产成人精品在线I一区二区免费视频观看I欧美一区二区三区久久I韩国av免费在线I永久毛片Iav男人的天堂在线I男人在线视频I国产福利免费视频I爱爱一区二区三区I色诱久久avI很黄很污的视频Iwwwav网站I国产精品一区二区av日韩在线I国产极品久久久I色欲久久久天天天精品综合网I国产精品永久I天堂视频一区二区I黄色在线观看国产I亚洲一卡二卡在线I日韩欧美一二三区

Shanghai Jingxin Solid Phase Extraction Unit/Solid Phase Extraction Apparatus/Chromatography Pretreatment QSE-36B Product Introduction:

Solid-Phase Extraction (Solid-Phase Extraction, referred to as SPE) is a widely used and popular sample pretreatment technology. The matrix and the interfering compound are separated, and then eluted with the eluent or heated to desorb to achieve the purpose of separating and enriching the target compound. It is developed based on the traditional liquid-liquid extraction based on the principle of similar intermiscibility with similar effects between substances and combined with the basic knowledge of liquid chromatography and gas chromatography stationary phases that are currently widely used.

Main features of solid phase extraction device:

●Each channel is equipped with an imported regulating valve, which can adjust the flow rate according to the test requirements.

●Unique spiral disk support design can freely adjust the height and flexibly combine support disks with different apertures to meet most sampling test tubes.

●The vacuum degree can reach 0.098Mpa when used with FCD vacuum pump.

●The unique waste liquid collection bottle separates the extraction part from the waste liquid storage part, which not only prevents cross-contamination, but also makes it more convenient to dispose of waste liquid

●The extraction column tray is made of special polymer material, which is beautiful and corrosion-resistant and will not be deformed under high pressure for long-term use.

●The internal test tube rack is made of PTFE, so it has high corrosion resistance.

technical parameter: