ityhubhu yeCOD

Imfuno ye-oksijini yemichiza luvavanyo olubalulekileyo lokuvavanya umgangatho wamanzi amdaka kunye namanzi amdaka phambi kokuba alahlwe. Uvavanyo lwe-Chemical Oxygen Demand (COD) luqikelela imfuneko ye-oksijini yamanzi amdaka kwaye isetyenziselwa ukubeka iliso kunye nokulawula ukukhutshwa, kunye nokuvavanya ukusebenza kwezityalo zonyango. Impembelelo yokukhutshwa kwamanzi amdaka okanye asetyenzisiweyo kumanzi afunyenweyo iqikelelwa yimfuno yawo ye-oxygen. Oku kungenxa yokuba ukukhutshwa kweoksijini emanzini endalo kunciphisa amandla ayo okugcina ubomi basemanzini. Uvavanyo lwe-COD ke ngoko lwenziwa njengesiqhelo kwiilabhoratri zamanzi kunye neenkampani zoshishino.

I-Aijiren COD Iityhubhu yoVavanyo incinci ngokobukhulu kwaye ilula ngobunzima. Inokuvavanywa ngaphandle kwaso nasiphi na esinye isixhobo selabhoratri kunye namagcisa; kuthatha kuphela i-3-5 imizuzu yokuvavanya isampuli, ngaphandle kwezixhobo ezongezelelweyo okanye izixhobo, kwaye kulula ukuyisebenzisa.

Uvavanyo lwe-COD luphawu olungcono longcoliseko lwendalo kumanzi amdaka emizi-mveliso aneecyanides kunye neentsimbi ezinzima. Uvavanyo lwe-COD lunika impendulo ekhawulezileyo kwiimeko eziguqukayo phambi kokuba kuvele iingxaki ezinzima.

Uvavanyo lwe-COD luphawu olungcono longcoliseko lwendalo kumanzi amdaka emizi-mveliso aneecyanides kunye neentsimbi ezinzima. Uvavanyo lwe-COD lunika impendulo ngokukhawuleza kwiimeko eziguqukayo ngaphambi kokuba kuphuhliswe iingxaki ezinzima. 

I-COD Test Tube yenziwe ngeglasi ye-borosilicate, enokunciphisa utshintsho lwe-pH kunye neengcoliseko ezinokuphuma kwiglasi ye-soda-lime. Ityhubhu yokuvavanya ukwetyisa kweglasi ingasetyenziselwa uhlalutyo kumaqondo obushushu angaphezu kwe-130 degrees Celsius. Yenziwe ngokugcinwa kwebhubhoratri kwiinjongo ezahlukeneyo eziqhelekileyo kwaye inokubamba phantse nantoni na.

I-COD Test Tube yenye yeemveliso eziphambili ze-Aijiren. Iyakwazi ukugqiba iimvavanyo ezininzi ezibalulekileyo, ezifana ne-digestion colorimetry, uvavanyo lomgangatho wamanzi, uvavanyo lwemfuno ye-oxygen, njl njl. I-COD Test Tube eveliswa ngu-Aijiren ine-inertness ephezulu, umgangatho omhle kunye ne-tube ezinzile. U-Aijiren uye waba ngumvelisi owaziwayo we-chromatography yezinto ezisetyenziswayo kumazantsi e-China ngenxa yomgangatho omhle we-COD Test Tube.

Ityhubhu yoVavanyo lweCOD eveliswe ngu-Aijiren isoloko isetyenziswa kubavavanyi bemfuno yemichiza yeoksijini. Ekubeni uvavanyo lwemfuno yekhemikhali ye-oksijini luvavanyo olufuna i-reagents ezonakalisayo ezomeleleyo, i-Aijiren isebenzisa eyona glasi inert kunye nezinzile ukuvelisa i-COD Test Tube, eveliswa ngu-Aijiren. I-COD Test Tube ihlangabezana neemfuno zabathengi kuvavanyo lwemfuno ye-oxygen.

Kolu vavanyo kusetyenziswa i-reagent engenanto endaweni yesiqhelo samanzi esingenanto ekubhekiswa kuyo kwimiyalelo yokusebenza yephotometer ngokubanzi. I-reagent blank ilungiswa ngokudibanisa amanzi adityanisiweyo okanye adibeneyo kwi-tube ye-reagent kwaye emva koko ukugaya ityhubhu ngendlela efanayo nesampuli yamanzi.
Akuyimfuneko ukulungiselela i-reagent engenanto ngexesha ngalinye uvavanyo luqhutywa. I-tube engenanto ye-reagent inokulungiswa ngeveki kwaye isetyenziswe ngokuphindaphindiweyo kunye nazo zonke iisampuli ezilungiselelwe ukusuka kwibhetshi efanayo yeetyhubhu ze-reagent. I-reagent engenanto kufuneka igcinwe ebumnyameni phakathi kokusetyenziswa.

I-COD Tubetests esetyenzisiweyo iqulethe i-asidi eqinile ye-sulfuric kunye nezinye iikhemikhali, ngoko ke ii-reagents kufuneka ziphathwe ngononophelo. Iziqulatho zombhobho kufuneka zilahlwe ngokuhambelana neemfuno zamagunya asekuhlaleni.
Ezi ityhubhu zovavanyo ziqinisekisiweyo ze-SGC. Le mibhobho ingasetyenziswa kube kanye kuphela, ngoko ayinakuphinda isetyenziswe.

Ukusebenzisa isifudumezi sedijithali kuvavanyo lwe-COD, seta ubushushu kwisiboniso sedijithali ukuya kwi-150°C. Akukho akhawunti kufuneka isifudumezi simiselwe kwiqondo lobushushu elingaphezulu kwelo lichaziweyo njengoko oku kunokubangela ingozi ngokunyuka koxinzelelo kwiityhubhu zeCOD.

Ifanelekile kwii-colorimeters kunye nezixhobo zokuvavanya kwimarike
Kwakhona zifanelekile izixhobo kunye neekiti zokuvavanya
Ukuvula i-vials etywiniweyo ekulula ukuyivula isusa umngcipheko wokungcola
Yandisa ubomi beshelufu ukuya kwiminyaka emihlanu
Asetyenziselwa ukuvavanya amanzi amdaka kamasipala; Amanzi amdaka kwimizi-mveliso kunye novavanyo lolawulo lwenkqubo; uvavanyo lwamanzi kokusingqongileyo

Vula ityhubhu yovavanyo lwe-COD, yibambe nge-engile kwaye wongeze kancinci
2.0 mL yesisombululo isampuli pretreated ukusuka ityhubhu yokusabela ngaphandle ukuxuba ukuze umaleko ezimbini ezahlukeneyo
zenziwe.
Screw cap ngokukhuselekileyo ukuze uvavanye ityhubhu, bamba ityhubhu ngekepusi, faka ityhubhu kwibhotile yokhuseleko kwaye ungcangcazele
(Isilumkiso, ityhubhu yovavanyo iba shushu). Beka ityhubhu kwibhloko yokufudumeza. Qalisa inkqubo yokufudumeza.
Emva kwe-2 h susa ityhubhu yokuvavanya kwibhloko yokufudumeza, vumela ukupholisa phantsi kwiqondo lokushisa kwaye ugubungele ngobumnene
amaxesha amaninzi.
Coca ngaphandle kwetyhubhu yovavanyo kunye nomlinganiselo.
Lungisa ifotometer ibe zero ngokusebenzisa ixabiso elingenanto "NULL"

Imfuno ye-oksijini yemichiza luvavanyo olubalulekileyo lokuvavanya umgangatho wamanzi amdaka kunye namanzi amdaka phambi kokuba alahlwe. Uvavanyo lwe-Chemical Oxygen Demand (COD) luqikelela imfuneko ye-oksijini yamanzi amdaka kwaye isetyenziselwa ukubeka iliso kunye nokulawula ukukhutshwa, kunye nokuvavanya ukusebenza kwezityalo zonyango. Impembelelo yokukhutshwa kwamanzi amdaka okanye asetyenzisiweyo kumanzi afunyenweyo iqikelelwa yimfuno yawo ye-oxygen. Oku kungenxa yokuba ukukhutshwa kweoksijini emanzini endalo kunciphisa amandla ayo okugcina ubomi basemanzini. Uvavanyo lweCOD ke ngoko lwenziwa njengesiqhelo kwiilabhoratri zamanzi kunye neenkampani zoshishino.

Ngovavanyo lwe-tube ye-Aijiren COD, umsebenzisi ngamnye unokwenza lula ukukhangela amanzi abukhali kwaye achanekileyo.
Ixesha elifunekayo kwinkqubo yokulinganisa lifutshane kakhulu, ngakumbi uhlalutyo oluqhelekileyo kunye nokulinganisa uchungechunge, ngelixa linciphisa kakhulu umsebenzi.
Ityhubhu yoVavanyo lwe-COD iqulethe idosi echanekileyo ye-reagent. Ke ngoko, uluhlu olugqithisileyo lweekhemikhali luyaphetshwa kwaye ukhuseleko lomsebenzi luyaphuculwa.

Uvavanyo lwe-Chemical Oxygen Demand (COD) lusetyenziswa ngokubanzi njengomlinganiselo wokungcola kwezinto eziphilayo ngokumisela ubuninzi be-oksijini efunekayo kwi-oxidation yeentlobo ezincitshisiweyo ezibandakanya izinto eziphilayo, kwisampuli yamanzi usebenzisa i-agent ethile ye-oxidizing, ubushushu kunye nokunciphisa ixesha. Uvavanyo lwe-COD luphawu olungcono longcoliseko lwendalo kumanzi amdaka emizi-mveliso aneecyanides kunye neentsimbi ezinzima. Uvavanyo lwe-COD lunika impendulo ngokukhawuleza kwiimeko eziguqukayo ngaphambi kokuba kuphuhliswe iingxaki ezinzima. Iibhotile ze-COD zikaLovibond ziyahambelana ne-BOTH Lovibond kunye ne-Hach® colorimeters.

Iimvavanyo zetyhubhu zohlalutyo lwefotometric ziqinisekisa ngokuphathwa kwazo ngokulula kwaye ke lukhetho lokuqala lwesiqhelo, ilabhoratri kunye nohlalutyo lwenkqubo. Ubuninzi bokuchaneka kunye nokuchaneka kunikezelwe kwiziphumo zokulinganisa ngenxa ye-reagents esele idosi yangaphambili kwi-cuvettes ye-16mm kunye ne-reagents ezongezelelweyo.

Amanzi okuvavanya iTotal Organic Carbon (TOC) awasekho kushishino lokusingqongileyo kuphela. Ngeendlela zamva nje ze-USP, i-TOC ngoku ixhalabile kuyo nayiphi na imboni esebenzisa Amanzi acocekileyo kunye naManzi okuTofa. IiVials ze-TOC ze-Aijiren eziphantsi zicocwa ngokukodwa kwaye zipakishwe ukunciphisa i-TOC ukuya kumanqanaba aphantsi kunokwenzeka, ukuqinisekisa imvelaphi ephantsi yovavanyo lwakho.

I-TOC sisishunqulelo seTotal Organic Carbon. Indlela eNgqo ye-TOC esuka e-Aijiren ibonelela ngeendlela ezithembekileyo nezisebenzayo kumaziko okucoca amanzi ukulinganisa rhoqo i-organic carbon ukuze kuphuculwe iinkqubo zonyango. Esikhundleni sokuthenga i-TOC ebiza kakhulu, i-analyzer yendabuko ye-TOC okanye ukukhutshwa kwe-TOC kwi-laboratory yekhontrakthi, le ndlela inokubonelela ngeziphumo ze-TOC - ngokuchanekileyo nangexabiso eliphantsi - kanye kwindawo yakho, kwaye ngaphandle kwenkunkuma enobungozi.

U-Aijiren uye wabandakanyeka kwimveliso ye-COD test tube kunye ne-Caps iminyaka engaphezu kweshumi, sinamava atyebileyo ngokupheleleyo kunye neenkqubo eziqhelekileyo zokuvelisa ityhubhu yokuvavanya i-COD ene-cap, kwaye sinokuqinisekisa umgangatho ophezulu we-COD yokuhlola ityhubhu eveliswa ngu-Aijiren ngexabiso elifanelekileyo.

I-Aijiren isebenzisa izixhobo ezikumgangatho ophezulu ukwenza iTube yoVavanyo eyi-16mm yoHlalutyo lwaManzi. Ukwaneliseka kwabathengi kunye nendumiso yenze i-Aijiren yaba yenye yezona zinto zithengiswa kakhulu kwilabhoratri kumazantsi eTshayina. Okokuqala, i-Aijiren iya kubambelela injongo yokuqala yokuqinisekisa umgangatho we-16mm Test Tube yokuHlalutya kwamanzi.