Sebenzisa amashubhu wokuhlola ama-cod wokuhlolwa kwamanzi
Ukuhlolwa kwe-Chemical Oxygen (COD) kuyindlela ebalulekile yokuhlola ikhwalithi yamanzi, ikakhulukazi ukwelashwa kwamanzi amdaka kanye nokuqapha imvelo. Amashubhu wokuhlola ama-COC enza lula inqubo, kepha ukusetshenziswa okufanele kubalulekile ekutholeni imiphumela efanele
Ukuhlolwa kwe-Chemical Oxygen (COD) kuyindlela ebalulekile yokuhlola ikhwalithi yamanzi, ikakhulukazi ukwelashwa kwamanzi amdaka kanye nokuqapha imvelo. I-COC Test Test shups yenza lula inqubo, kepha ukusetshenziswa okufanele kubalulekile ekutholeni imiphumela efanele. Nasi umhlahlandlela wesinyathelo ngesinyathelo sokuqinisekisa ukuhlolwa okusebenzayo:
1.Ukuqonda inhloso
I-COD ilinganisa inani le-oksijini elidingekayo kumakhemikhali we-oxidize we-organic ne-inorganic emanzini. Le pharamitha ibalulekile ekuhlolweni komthwalo wokungcola kanye nokusebenza kahle kwemizimba yamanzi.
2.Khetha amashubhu wokuhlola afanele
Khetha amashubhu wokuhlola ama-Certified Cod aklanyelwe ngokukhethekile indlela yakho yokuhlola. Qinisekisa ukuthi zikhululekile ekungcolisweni futhi zilungele uhla olulindelekile lwamanani we-COD kumasampula akho.
3. Iqoqo lesampula
Qoqa amasampula wamanzi ezitsheni ezihlanzekile, ezingcolile. Gwema ukudalula amasampula emoyeni ngezikhathi ezengeziwe, ngoba lokhu kungaguqula imiphumela ye-COD.
Gcwalisa amashubhu wokuhlola uye ezingeni elinconyelwe, uqinisekise ukuthi akukho bubhula womoya ubanjwe ngaphakathi, okungathinta ukunemba kwesilinganiso.
4.Add reagents
Landela imiyalo yomenzi yokwengeza ama-reagents kumashubhu wokuhlola. Ngokuvamile, lokhu kufaka ukwengeza ivolumu ethile yesampula nenani elinqunyelwe le-potassium dichromate solution.
CAP amashubhu ngokuphephile ukuvikela ukuvuza futhi uqinisekise ukuxubeka okufanele.
I-5.Cicubation
Beka amashubhu wokuhlola kubhavu wamanzi noma ibhulokhi yokushisa endaweni yokushisa ebekiwe (imvamisa i-150 ° C) yesikhathi esidingekayo (imvamisa amahora angu-2). Lesi sinyathelo sibucayi ukuze uthole i-oxidation ephelele yezinto eziphilayo.
6.cooling nokulinganisa
Vumela amashubhu wokuhlola ukuthi aphole ekushiseni kwegumbi ngaphambi kokulinganisa ukumunca usebenzisa i-spectrophotometer. Qinisekisa ukuthi i-wavelength isethwe ngokuya nge-test tube profiseds.