Ho hlophisa disampole tse tloaelehileng ke ntho e hlokang ho etsoa khafetsa nakong ea liteko. Ha re nka teko e amanang le matšoao a boleng ba metsi a teko e le mohlala, ho hlophisa disampole tse tloaelehileng, ka ho bapisa boleng bo lekantsoeng le boleng ba referense ea sampole e tloaelehileng, motho a ka fumana hore na phoso ea sesebelisoa sa teko e ka har'a moeli o boletsoeng, 'me e mong a ka netefatsa hore na mokhoa oa ho lekanya oa motho ea lekang o nepahetse. Ka hona, ho hlophisa disampole tse tloaelehileng ho bohlokoa haholo ho ts'epahalong ea teko.
Tse latelang li tla hlahisa mokhoa oa ho hlophisa lisampole tse tloaelehileng tsa COD, tloo u shebe.
Mohato oa pele ke ho lokisa lintho tse sebelisoang tse khethehileng tsa COD tsa Lianhua Technology - potassium hydrogen phthalate (HOOCC6H4COOK), metsi a hloekisitsoeng, beaker, molamu o hlohlelletsang, flask ea volumetric ea 1000mL pele ho tlhophiso.
Mohato oa bobeli ke ho nka tekanyo e nyane ea potassium hydrogen phthalate (HOOCC6H4COOK) ebe u e omisa mochesong oa 105℃ ka lihora tse 2, ebe u e ntša ka mor'a ho e pholile.
Mohato oa boraro ke ho lekanya ka nepo 0.4251g ea potassium hydrogen phthalate e omisitsoeng (HOOCC6H4COOK) ebe u e kenya ka beaker, eketsa metsi a manyane a hloekisitsoeng, u hlohlelletse ho fihlela e qhibiliha ka botlalo, ebe u e fetisetsa ka beaker ea volumetric (beaker e ka hlatsuoa ka makhetlo a mararo ka metsi a hloekisitsoeng, 'me tharollo ea ho hlatsoa le eona e eketsoa ka beaker ea volumetric), ebe qetellong e hlatsuoa ho fihlela ho 1000mL.
Jwale, sampole e tloaelehileng ya COD ya 500mg/L e se e loketse. Sampole e tloaelehileng e lokisitsweng e ka sebediswa ho leka le ho lekanya disebediswa, mme nako ya ho boloka disebediswa hangata ke dikgwedi tse 3.
Mokhoa o ka holimo ke oa ho hlophisa sampole e tloaelehileng ea COD tokollong ena. Ntatele ho ithuta tsebo e eketsehileng ea liteko!
Nako ea poso: Hlakubele-31-2025
