Yeyiphi ifume hood efanelekileyo kwilabhu yakho?

The I-Fume Hood sisiseko esibalulekileyo sokhuseleko kwiiklasi zekhemistri kunye neelebhu zophando. Ukufumana okuninzi kwi-fume hood kuqala ngokukhetha eyona ilungileyo kwisicelo sakho. Oko kuthetha ukwazi ngokuchanekileyo ukuba loluphi uhlobo lomsebenzi oza kwenziwa kwi-fume hood kwaye wenze ukhetho phakathi komthamo womoya ongaguqukiyo kunye nomthamo womoya oguquguqukayo, ukhetha phakathi kokutsalwa kunye I-Ductless Fume Hood, kunye nokukhetha imathiriyeli efanelekileyo yokwakha.

Izinto zokwakha

Isigqubuthelo somsi kufuneka sihambelane neekhemikhali esiza kujongwa kuzo. Umzekelo, abo benza ukucolwa kweasidi baya kufuna i-polypropylene fume hood okanye enye imathiriyeli ekwaziyo ukumelana nomhlwa. Ukusebenza kunye ne-radioisotopes okanye i-perchloric acid ngokuqhelekileyo ifuna enye insimbi engenasici. Kwabo basebenza ngeekhemikhali ezingadlekiyo okanye ezidla ngokuphakathi, ifume hood yentsimbi iqhele ukwanela.

Ukutsalwa kwe-Ductless vs

IiLebhu kufuneka zithathele ingqalelo ukuba ifume hood okanye ifume hood ilungile na kuzo. Ngokwemveli I-Ducted Fume Hoods ziyafuneka kwiimeko ezithile: ukulungiselela imithamo enzima yeeasidi, ezifana nenkqubo yokwetyisa iasidi, xa ujongene neegesi ezintle, okanye kwiimeko apho ubuninzi obungaziwayo bomphunga buyenzeka kwihood. Nangona iipesenti ezingama-90 zekhemistri eyenziwa kwiilebhu namhlanje inokwenziwa I-Fume Hoods eHliweyo, kusekho indawo yezigqubuthelo zomsi zemveli.

Kwelinye icala, abasebenzisi abenza iinkqubo eziphindaphindayo, ezinje ngezo zivela kulawulo lomgangatho, kwaye bayazi ukuba ungakanani umthamo weekhemikhali abaza kuzisebenzisa kunye nokuba kobuphi ubushushu, banokuxhamla kwi-fume hood engenambhobho. Nangona kunjalo, ngaphambi kokukhetha i-fume hood, abasebenzisi kufuneka banike umenzi uluhlu lweekhemikhali abaceba ukuzisebenzisa ukuze babone ukuba i-ductless okanye i-ductless isisombululo esifanelekileyo.

Nasemva kokuba ilebhu ithathe isigqibo malunga ne-fume hood engenambhobho, kusekho umbuzo wokuba loluphi uhlobo lohluzo oluya kuthi luzifezekise iimfuno zabo zokhuseleko. Ezinye iilebhu ziya kufuna ukuhluzwa kwe-HEPA kunye nokuhluzwa kweemolekyuli. Ngokomzekelo, iilebhu ze-forensic eziphethe i-opioids kunye ne-analogs yazo kunye nokwenza i-chemistry yohlalutyo ebandakanya iikhemikhali ezinobungozi ukumisela amandla abo kunye nezinye iimpawu. Kulo mzekelo, i-HEPA kunye nesihluzo se-molecular sinokudibaniswa kwinkqubo yokucoca ukuqinisekisa ukhuseleko olufanelekileyo.

I-CAV vs. VAV

Umthamo womoya othe rhoqo (CAV) ifume hoods zikhupha umlinganiselo ofanayo womoya kungakhathaliseki ukuba ukwindawo yesash, kanti iisistim zomthamo womoya oguquguqukayo (VAV) zinokwahluka ubungakanani bomoya ophelileyo ophuma kwifume hood ekuphenduleni ukuvuleka kwesash. Kwizicelo ezikhethekileyo ezifana nee-asidi ezibilisayo, i-CAV lolona khetho lungcono kuba ukuthoba umthamo womoya kunokuvumela ubushushu ukuba bakhe ngaphakathi kwihood. Ngokuxhomekeke kwiimfuno zeziko, mhlawumbi i-CAV okanye i-VAV fume hood ingasetyenziselwa i-chemistry jikelele.

I-VAV iluncedo kakhulu kwifume hood kunehood engenambhobho. Oku kungenxa yokuba kwii-hoods zomsi, ufuna ukuthoba isantya sokuhamba komoya esikhutshwayo kwisakhiwo. Kwii-hoods ezihluziweyo zomsi, i-VAV ayiloncedo kangako kuba umoya olungiselelwe uhlala ngaphakathi kwegumbi.

Ukongeza kwezi ngqwalasela, abantu abakhetha i-fume hood kwiilebhu zabo kufuneka baphande ngenkunzi, ukufakwa, kunye neendleko zokusebenza ezibandakanyekayo; iziqinisekiso; kunye nenkonzo kunye nenkxaso enikezelwa ngumenzi wokuqinisekisa ukuba bafumana inkqubo efanelekileyo yokulingana nohlahlo lwabiwo-mali lwabo kwaye bafeze iimfuno zabo zokhuseleko.