Koj paub ntau npaum li cas txog cov khoom siv chromatography vials li cas?

Kev faib tawm ntawm Kuaj iavyog ua raws cov dej tsis kam ntawm USP (United States Tshuaj Pharacopeia).

USP Hom 1, Chav Kawm A, 33 Borosilicate iav yog cov inert thiab yog dav siv nyob rau hauv cov ntawv thov Chromatographic, tshwj xeeb rau Chromatographic daim ntawv thov. Cov chav kawm Kuv khob muaj feem ntau ntawm silicon thiab oxygen thiab muaj cov kab ntawm boron thiab sodium. Nws cov kev cais tawm yog tsawg, thiab nws linear nthuav kev coefficient yog 33.

USP Hom 1, B, 51 Borosilicate iav yog tsuas yog tsim ntawm silicon thiab oxygen. Nws muaj cov nqi ntawm cov neeg Boron, sodium, thiab alkali me me tshaj li ib-qib iav, tab sis nws tseem tuaj yeem ntsib kev kuaj kev kuaj. Tag nrho cov tsom iav dub yog chav kawm Bkes nrog cov coefficient ntawm linear nthuav ntawm 51.

Nws iav nto yog heev hydrophobic thiab inert, thiab yog haum rau pho-rhiab rau cov lus qhia, thiab kev ntsuas ntev ntev. Iii thiab nupBorosilicate iav.

Ntxiv nrog rau iav, muaj ntau tus lej ntawm lwm cov ntaub ntawv:

Polyprropylene(PP) yog cov khoom siv nyuaj uas tuaj yeem ua tau nyob rau hauv ntau yam xim thiab muaj cov tshuaj zoo tshuaj lom zem ntawm cov kuaj sim hauv khw muag khoom luv luv. Thaum muaj ntxhiab hydrocarbons lossis halogenated hydrocarbons tau siv, lawv txoj kev tiv thaiv lawv lub sijhawm.

PP cov qauv ntim muaj feem ntau siv rau ion chromatography vim lawv cov ntsiab lus ion tsawg thiab tuaj yeem ntxuav nrog dej acidut thiab deionized dej. Txij li thaum lub foob yuav tuaj yeem ua ncaj qha rau kev txwv ncaj qha, yog li PP cov qauv tshuaj piv txwv ntxiv yuav txo tau cov tshuaj muaj teeb meem.

Polymethylpentene (tpx) yog ib qho nyuaj, cov khoom siv pob tshab nrog lub siab ntawm 0 txog 170 degrees C. Vim tias nws lub hwj chim siab tuaj yeem hloov opaque pp. Nws cov tshuaj tiv thaiv zoo ib yam li PP, thiab TPX fwj ntau feem ntau siv nyob rau hauv cov xwm txheej uas yuav tsum tau pom qhov qauv yog lossis siv nyob rau hauv qhov chaw kub siab. TPX fwj yog nkig ntawm chav tsev kub.

Yog li yog tias koj xav paub ntau abou tuschromatography vials, Thov hu rau AIJIREN tam sim no!