Konke odinga ukukwazi ngamashubhu wokuhlola ama-COC

Sep 11th, 2024

ICOD (i-Chemical Oxygen funa) iyisivivinyo sokuhlaziya esisetshenziswa kabanzi esilinganisa inani le-oksijini elidingeka ku-oxidize e-Oxidize Kuyipharamitha ebalulekile yokuhlola ikhwalithi yamanzi kanye nokusebenza kahle kwezinqubo zokwelashwa kwamanzi amdaka.

Ukuqonda okujulile kokuthi ama-cod vials asebenza kanjani ekuhlolweni kwamanzi, sicela ubheke kule ndatshana:"Umgomo osebenzayo we-code veal. "

Amashubhu wokuhlola amaCod

Amashubhu wokuhlola wekhwalithi ephezulu Ngokuvamile kwenziwa ngengilazi engu-5.0 ye-borosiling, enokumelana kahle nokushaqeka okushisayo kanye nokuguguleka kwamakhemikhali. Ishubhu lokuhlola elihle le-COD kufanele kube lula ukuyisebenzisa, kulula ukujova futhi kukhiphe isisombululo, futhi kungathambeki ekuvuzeni.

Amashubhu wokuhlola ama-COC aklanywe ngokukhethekile ama-tubes asetshenziswa kwinqubo yokuhlaziya i-cod. Lawa mashubhu aqukethe inani elaziwayo le-potassium dichromate (i-ejenti ye-oxidizing) ne-sulfuric acid, kanye ne-catalyst. Izici ezibalulekile ze

Amashubhu wokuhlola amaCod afaka:

Amandla: 10 ml, anamandla amakhulu we-12 ml

Ukuphakama: 10 ± 0.02 cm

Ububanzi: 1.58 ± 0.02 cm

Ububanzi bentambo bangaphakathi: 0.95 ± 0.02 cm

Intamo yangaphandle yentamo: 1.50 ± 0.02 cm

Ikhwalithi ephezulu yengilazi ye-optical iqinisekisa ukuhlaziywa okunembile kombala wemiphumela ye-cod.

Inqubo yokuhlola i-COD

Le khasi16mm COD testInqubo ifaka lezi zinyathelo ezilandelayo:

1. Isampula yamanzi noma amanzi angcolile (imvamisa 2 ml) ingezwe ku-cod test tube equkethe i-reagent yokugaya kanye ne-catalyst.

I-3. Ngesikhathi senqubo yokushisa, izinto eziphilayo esampuli zikhishwe yi-potassium dichromate, ziyehlisa zibe yindawo eluhlaza okotshani ye-chromium.

I-4. Ukuhlushwa kwe-cod kunqunywa ngokulinganisa ukumunca isampula egayiwe usebenzisa i-spectrophotometer ku-wavelength ethile, ngokuya ngobubanzi be-cod:

Ububanzi obuphansi (5-150 ppm): Kukalwa ngo-420 NM

Ibanga eliphakeme (20-1500 ppm): Kukalwa ngo-620 NM

Ufuna ukwazi kabanzi nge-COD Test Tube, sicela uhlole le ndatshana: I-COD Test Tube nge-PP Screw cap yokuhlaziywa kwamanzi

Ukulungiswa kwesampula nokuphatha

Amanzi a-Wastewater kanye namasampula wendle angaqukatha udaba olungahleliwe noma lokubandakanya. Amasampula anjalo angahle ahlawulwe nge-blender ngaphambi kokuhlolwa ukuze athuthukise ukunemba nokuphindaphindwa. Inani lamanzi adingekayo ukunciphisa isampula lincike ebusweni be-cod yeshubhu lokuhlola.

Ama-COD Ranges kanye Nezicelo

Amashubhu wokuhlola amaCodzitholakala kumabanga ahlukene ukwamukela ukugxila okuhlukahlukene okuhlukahlukene:

Ububanzi obuphansi: 5-150 ppm

Ibanga eliphakeme: 20-1500 ppm

Lawa mabanga alungele ukuhlaziya amasampula ahlukahlukene ahlukahlukene, kufaka phakathi:

a. Amanzi avundwayo ekwelashweni

b. Amanzi angcolile avela emithonjeni yezimboni neyamasipala

c. Abagqoke izitshalo zokwelashwa kwamanzi wastewater

d. Amanzi angaphezulu nangaphansi kwamanzi

Ngokusebenzisa okufaneleI-COD test tubeIbanga elisuselwa ekuhlushwa kwe-cod okulindelekile, imiphumela enembile ingatholwa ngokulawulwa kwenqubo yokuhlola okusebenzayo kanye nenqubo yokwelashwa.

Ngeminye imininingwane ngamashubhu wokuhlola ama-COD kanye nezicelo zawo ekuhlaziyweni kwamanzi, bhekani kulesi sihloko:"I-COD Test Tube isetshenziswa kanjani ekuhlaziyweni kwamanzi."

Okwedlule:

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Olandelayo:

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Amathegi: I-Cod-distiction-tube-umphakeli I-Cod-digesfution-tube I-COD-tube I-cod-distiction-tube-intengo I-COD-test-tube Umkhiqizi we-COD-tube Umhlinzeki we-COD-tube I-16mm-cod-vial Intengo ye-cod-tube cod-vial