Uburyo bwo gupima imiti ya ogisijeni (COD), yaba uburyo bwo guhinduka, uburyo bwihuse cyangwa uburyo bwa fotometrike, ikoresha potasiyumu dichromate nka oxyde, sulfate ya silver nka catalizator, na sulfate ya mercure nkibikoresho byo gutwika ioni ya chloride. Mugihe cya acide ya acide sulfurike Kugena uburyo bwa COD Kugena uburyo bushingiye kuri sisitemu yo kurya. Hashingiwe kuri ibyo, abantu bakoze imirimo myinshi yubushakashatsi hagamijwe kuzigama reagent, kugabanya gukoresha ingufu, gukora ibikorwa byoroshye, byihuse, byukuri kandi byizewe. Uburyo bwihuta bwo gusya bwerekana uburyo bwo guhuza ibyiza byuburyo bwavuzwe haruguru. Bivuga gukoresha umuyoboro ufunze nk'umuyoboro w'igifu, gufata urugero ruto rw'amazi hamwe na reagent mu muyoboro wafunzwe, ukabishyira mu cyuma gito gihoraho, ugashyushya ubushyuhe buri gihe kugira ngo ugogwe, kandi ukoresheje spekitifotoometero COD agaciro ni bigenwa na fotometrie; ibisobanuro by'igitereko gifunze ni φ16mm, uburebure ni 100mm ~ 150mm, gufungura hamwe n'ubugari bw'urukuta rwa 1.0mm ~ 1.2mm ni umunwa uzunguruka, kandi hiyongereyeho igifuniko cya spiral. Umuyoboro wafunzwe ufite aside irwanya aside, irwanya ubushyuhe bwinshi, irwanya umuvuduko n’ibintu birwanya guturika. Umuyoboro ufunze urashobora gukoreshwa mugusya, bita umuyoboro wigifu. Ubundi bwoko bwigitereko gifunze burashobora gukoreshwa mugogora kandi birashobora no gukoreshwa nkumuyoboro wamabara ya colorimetry, ibyo bikaba bita digestion colorimetric tube. Gitoya yo gushyushya ikoresha blok ya aluminium nkumubiri ushyushya, kandi imyobo yo gushyushya iragabanijwe neza. Umurambararo wa diameter ni 16.1mm, ubujyakuzimu bwa 50mm ~ 100mm, naho ubushyuhe bwashyizweho ni ubushyuhe bwa reaction. Muri icyo gihe, kubera ubunini bukwiye bw'igitereko gifunze, isukari yo mu gifu ifata umwanya uhagije w'umwanya uri mu muyoboro wafunzwe. Igice cyigifu kirimo reagent cyinjizwa mu mwobo ushyushya wa hoteri, naho hepfo yigitereko gifunze hashyuha ubushyuhe buri gihe bwa 165 ° C; igice cyo hejuru cyumuringa gifunze kiri hejuru yumwobo ushyushye kandi kigaragara kumwanya, kandi hejuru yumunwa wumuyoboro umanurwa kugera kuri 85 ° C munsi yubukonje busanzwe bwumwuka; Itandukaniro ryubushyuhe ryemeza neza ko amazi ya reaction mu gikoresho gito gifunze kiri mumashanyarazi make atetse kuri ubu bushyuhe buhoraho. Imashini ya COD yoroheje irashobora kwakira imiyoboro 15-30 ifunze. Nyuma yo gukoresha umuyoboro ufunze kugirango igogorwa ryogusya, gupima kwa nyuma birashobora gukorwa kuri fotometeri ukoresheje cuvette cyangwa umuyoboro wa colimetric. Ingero zifite agaciro ka COD 100 mg / L kugeza 1000 mg / L zishobora gupimwa ku burebure bwa 600 nm, naho ingero zifite COD zifite agaciro ka 15 mg / L kugeza 250 mg / L zishobora gupimwa ku burebure bwa 440 nm. Ubu buryo bufite ibiranga umurimo muto, gukoresha ingufu nke, gukoresha reagent nkeya, kugabanya imyanda yagabanutse, gukoresha ingufu nke, gukoresha ibintu byoroshye, umutekano kandi uhamye, byukuri kandi byizewe, kandi bikwiriye kugenwa nini, nibindi, gukora kubitagenda neza byuburyo busanzwe.
Lianhua COD precast reagent vial ibikorwa byintambwe:
1. Fata ibintu byinshi bya COD precast reagent (intera 0-150mg / L, cyangwa 20-1500mg / L, cyangwa 200-15000mg / L) hanyuma ubishyire kumurongo wibizamini.
2. Fata neza 2ml y'amazi yatoboye hanyuma uyashyire muri tube 0 reagent. Fata 2ml y'icyitegererezo kugirango ugerageze muyindi reagent.
3. Kenyera ingofero, uzunguze cyangwa ukoreshe mixer kugirango uvange igisubizo neza.
4. Shira umuyoboro wikizamini muri digester hanyuma urye kuri 165 ° muminota 20.
5. Igihe nikigera, fata umuyoboro wikizamini hanyuma usige iminota 2.
6. Shira umuyoboro wikizamini mumazi akonje. Iminota 2, ukonje kugeza ubushyuhe bwicyumba.
7. Ihanagura urukuta rw'inyuma rw'igeragezwa, shyira umuyoboro wa 0 muri fotometeri ya COD, kanda buto ya "Blank", hanyuma ecran izerekane 0.000mg / L.
8. Shyira utundi tubari twikizamini hanyuma ukande buto "IKIZAMINI". Agaciro COD kazerekanwa kuri ecran. Urashobora gukanda buto yo gucapa kugirango usohore ibisubizo.
Igihe cyo kohereza: Gicurasi-11-2024
