Izisombululo zezinkwa zokusebenza eziguquguqukayo ze-organic (ama-Vocs) Ukwehluleka kwesimangaliso

Ngemichilo ye-vial ne-SEPTA, udinga ukwazi ，Chofoza lapha ukwazi

I. Izingqinamba ezivamile zokubopha ukwehluleka

1. Ukulinganiselwa Kwezikulumo Zendabuko

Ama-screen screw-cap vial ancike ekuqiniseni okwenziwe ngesandla, okuholela ekucindezelweni kokubekwa uphawu okungalingani. Ukushintshashintsha kwezinga lokushisa kungadala ukwanda okushisayo kanye nokuphambana, okuholela ekuvuzeni kwegesi okuncane.

2. Izingozi Zokuzindla Ngezinto Ezinamaphuzu Asezingeni Eliphansi

Amakhompiyutha e-Loiling Poing aphansi afana neBenzene Derivatives (iphuzu elibilayo <150 ° C) angasheshe avule amazinga okushisa asekamelweni. Uma i-gasket ye-vial yokuvalwa kwe-vial ine-adsorption ephezulu noma ukumelana kwamakhemikhali ampofu, ukulahleka kwesampula kukhuliswe, kunciphisa amanani okuthola kabusha angaphezu kwama-30%.

3. Ukungcola kanye namaphutha wokuhlaziya

Ukwehluleka kokubekwa uphawu kungadali ukulahleka kokuhlaziywa kwelitshe kodwa kungase kungenise nama-contaminants angaphandle. Isibonelo, ukunyakaza ngesikhathi sokuhamba kungakhulula ama-vial cap, okuholela ekungcoleni okukhona phakathi kwamasampula aseduze nangokuthinta imiphumela yokuhlaziya ye-GC-MS.

II. Izixazululo ezintathu zobuchwepheshe zokwenza ngcono uphawu

Isixazululo 1:Pre-slit ptfe \ abicone composite septa
Izinzuzo zobuchwepheshe:
I-PTFE (i-polytetrafluoroethylene)) inikeza amandla aqinile wamakhemikhali, ukuvikela ama-adposithi we-vocs.
Isendlalelo se-silicone sinikeza i-cushioning ye-elastic, ethola ukuhlukahluka kokushisa.

Idizayini yangaphambi kokukhanya inciphisa ingozi yokuchitheka okubandakanya ngesikhathi sokungena kwenaliti.

Ufuna ukwazi ukuthi ungayikhetha kanjani i-Septa pre slit noma cha?Chofoza lapha ukwazi

Izimo ezisebenzayo: Ukuhlaziywa kwama-Vocs njengokusebenzisa nge-EPA 8260, HJ 644-2013, kanye namazinga afanayo.

Isixazululo 2: Ama-CAPPERS alawulwa nguTorque

• Inani eliyisisekelo:

  • Ukulawula ngokunembile ukubekwa kwengcindezi yokubopha

  • Iqinisekisa ukuxhumana okufanayo phakathi kwe-cap ne-gasket, ukuvimbela ukuvuza ngesikhathi sokugcina isikhathi eside.

Isixazululo 3:Isampula ama-vials ahambisana namazinga e-EPA 8260

• Izindlela zokukhetha:

  • Ukuvumelana okuphezulu ku-vial umlomo ubukhulu (isb.,40ml wide-umlomo vials).

  • Izinto zeglasi kufanele kube yi-acid ne-alkali-ukumelana nohlaka oluphansi.

  • Ehambisana ne-septa eqinisekisiwe, eqinisekiswe ngokuhlolwa okungekho emthethweni.

III. Isifundo secala: Umthelela wokubekwa uphawu uphawu ekunembeni kokuhlaziya

I-Laboration yokuhlola imvelo ngokuqhathanisa ukusebenza phakathi kwezixazululo ezijwayelekile zesikulufa-cap kanye nezixazululo ze-Seallized Solution ezenziwe kahle:

IV. Isiphetho Nezincomo

Ukwehluleka kokubekwa uphawu kumasampula e-VOCs akusho lutho - banomthelela ngqo ekubandleni kanye nobuqiniso besayensi wemibiko yokuhlaziya. Amalabhori kufanele:

1. Ukubeka phambili okuqukethwe okubekwa uphawu okuphezulu: khetha i-PTFE eqinisekisiwe ye-PTFE

2. Kudala izinqubo zokubopha uphawu: Sebenzisa ama-CAPPERS alawulwa yi-torque futhi alinganise njalo ingcindezi yokufaka uphawu.

3. Thuthukisa ukulawulwa kwekhwalithi: Qapha ukusebenza kokubekwa uphawu ngokuhlolwa kokutakula okukhohlisayo bese uthatha isikhundla se-Septa esemdala.

I-future Outlook: Ngokwehla kwezingalo okwandayo kumazinga anjengendlela ye-EPA kuya ku-17 yokulandela ama-Vocs, ukutholwa kwamadivayisi wokutholwa kokutholwa kokubopha nezinhlelo ezizenzakalelayo ze-automated post.