Chidziwitso chaching'ono ndi chidziwitso chachikulu 丨COD standard sample configuration tutorial

Kukhazikitsa zitsanzo zokhazikika ndi chinthu chomwe chiyenera kuchitika pafupipafupi panthawi yoyesera. Potengera chitsanzo cha kuyesa kokhudzana ndi zizindikiro za khalidwe la madzi, kukonza zitsanzo zokhazikika, poyerekeza mtengo woyesedwa ndi mtengo wofotokozera wa chitsanzo chokhazikika, munthu akhoza kudziwa ngati cholakwika cha chida choyesera chili mkati mwa mulingo womwe watchulidwa, ndipo winayo akhoza kutsimikizira ngati njira yoyezera ya woyeserayo ndi yolondola. Chifukwa chake, kukhazikitsa zitsanzo zokhazikika ndikofunikira kwambiri pa kudalirika kwa kuyesako.
Zotsatirazi zikuwonetsani njira yosinthira zitsanzo za COD, bwerani mudzaone.
Gawo loyamba ndikukonzekera zinthu zapadera zogwiritsidwa ntchito za Lianhua Technology monga potaziyamu hydrogen phthalate (HOOCC6H4COOK), madzi osungunuka, beaker, ndodo yosakaniza, botolo la volumetric la 1000mL musanayike.
Gawo lachiwiri ndikutenga pang'ono potaziyamu hydrogen phthalate (HOOCC6H4COOK) ndikuumitsa pa 105℃ kwa maola awiri, ndikuutulutsa utazizira.
Gawo lachitatu ndikulemera molondola 0.4251g ya potaziyamu hydrogen phthalate youma (HOOCC6H4COOK) ndikuyiyika mu beaker, onjezerani madzi pang'ono osungunuka, sakanizani mpaka itasungunuka kwathunthu, ndikuyiyika mu botolo la volumetric (beaker ikhoza kutsukidwa katatu ndi madzi osungunuka, ndipo yankho lotsuka limawonjezeredwanso ku botolo la volumetric), kenako ndikuchepetsa mpaka 1000mL.
Tsopano, chitsanzo cha COD cha 500mg/L chakonzeka. Chitsanzo chokonzedwacho chingagwiritsidwe ntchito kuyesa ndikuwongolera zida, ndipo nthawi yosungira nthawi zambiri imakhala miyezi itatu.
Njira yosinthira chitsanzo cha COD yomwe ili pamwambapa ndi iyi. Nditsateni kuti mudziwe zambiri zokhudza kuyesa!