Ukwenziwa njani ukumiselwa koMxholo weNitrojeni ngeKjeldahl Method?

Indlela ye-Kjeldahl isetyenziselwa ukumisela umxholo we-nitrogen kwiisampuli eziphilayo kunye ne-inorganic. Kwiminyaka engaphezu kwe-100 indlela ye-Kjeldahl isetyenziselwe ukumiselwa kwe-nitrogen kwiisampuli ezininzi. Ukuzimisela kweKjeldahl nitrogen kwenziwa ngokutya kunye neziselo, inyama, ukutya, okuziinkozo kunye nefolishi yokubala umxholo weprotheni. Kwakhona indlela yeKjeldahl isetyenziselwa ukumiselwa kwenitrogen kumanzi amdaka, imihlaba kunye nezinye iisampuli. Yindlela esemthethweni kwaye ichazwa ngeendlela ezahlukeneyo ezifana ne-AOAC, i-USEPA, i-ISO, i-DIN, i-Pharmacopeias kunye ne-European Directives.

[DRK-K616 Automatic Kjeldahl Nitrogen Analyzer] yinkqubo yokulinganisa initrogen ezenzekela ngokuzeleyo kunye netitration esekwe kwindlela yakudala yeKjeldahl nitrogen yokumisela. Isixhobo sinokuqonda ukukhutshwa kwenkunkuma ngokuzenzekelayo kunye nomsebenzi wokucoca we-tube yokugaya, kwaye ugqibe ngokulula ukukhutshwa kwenkunkuma ngokuzenzekelayo kunye nomsebenzi wokucoca ngokuzenzekelayo wekomityi ye-titration. Isetyenziswa kakhulu ekutyeni, icuba, esweni kokusingqongileyo, amayeza, uphando lwezenzululwazi kunye nokufundisa, ukubeka iliso umgangatho kunye nezinye iinkalo, nitrogen okanye protein umxholo ukuzimisela.

Iimbonakalo:

1. Ukukhupha ngokuzenzekelayo kunye nomsebenzi wokucoca, ukubonelela ngokukhuselekileyo kunye nokusebenza kwexesha. Uyilo lwamacango aphindwe kabini lwenza umsebenzi ukhuseleke kwaye ucoceke.

2. Ukuhamba komphunga kuyalawuleka, okwenza uvavanyo lube lula kwaye lube bhetyebhetye. Imonitha yexesha langempela lobushushu be-distillate liya kumisa ngokuzenzekelayo ukusebenza kwesixhobo xa iqondo lokushisa le-distillate lingaqhelekanga ukuqinisekisa ukuchaneka kweziphumo zovavanyo.

3. Inemodi ye-distillation ephindwe kabini ukuhlangabezana neemfuno ezahlukeneyo zokulinga, ukunciphisa iqondo lobundlobongela le-acid-base reaction, kwaye ngokukhawuleza ukhuphe ityhubhu yokugaya ukuthintela umlingeli ukuba aqhagamshelane ne-reagent eshushu emva kokukhutshwa kwe-distillation kunye nokukhusela ukhuseleko lomfuni. Ipompo yedosi ephezulu echanekileyo kunye nenkqubo ye-titration iqinisekisa ukuchaneka kweziphumo zovavanyo.

4. Umboniso wombala we-LCD wokuchukumisa umbala, ukusebenza okulula kunye nokufanelekileyo, ulwazi olutyebileyo, oluvumela abasebenzisi ukuba basebenzise ngokukhawuleza ukusetyenziswa kwesixhobo.

5. Isixhobo sinezinzwa ezininzi ezifana nomnyango wokhuseleko kwindawo, ityhubhu yokugaya kwindawo, i-condensate meteor, i-jeneretha ye-steam, njl njl. Lonke ulwazi luphantsi kolawulo lokuqinisekisa ukhuseleko lomfuniselo kunye nomsebenzisi.

6. I-nitrogen analyzer eyinyani, i-alkali ezenzekelayo kunye ne-asidi yokudibanisa, i-distillation ezenzekelayo, i-titration ngokuzenzekelayo, ukukhutshwa kwenkunkuma ngokuzenzekelayo, ukucoca ngokuzenzekelayo, ukulungiswa okuzenzekelayo, ukuchithwa kwetyhubhu yokugaya, ukufumanisa impazamo ngokuzenzekelayo, ukujongwa kwenqanaba lesisombululo esizenzekelayo, ukubeka iliso phezu kobushushu obuzenzekelayo. , iziphumo zokubala ngokuzenzekelayo.

• [cf7ic]