16mm yakajeka hombe bolosililide girazi cod test tube
Cemical oxygen inodikanwa (cod) test tubes zvinhu zvakakosha zvekuongorora zvemvura kuongororwa kwemvura, inoshandiswa zvakanyanya mukuedzwa, muindisitiri, uye kwekuedzwa. Aya machubhu akakosha akagadzirirwa kutsungirira tembiricha yakakwira uye yakaoma yemakemikari mamiriro panguva yekamuri yekugaya. Ngatisvike muganho muzvinhu zvakakosha uye zvakanakisa maitiro ekushandisa cod test tubes.
Cemical oxygen inodikanwa (cod) test tubes zvinhu zvakakosha zvekuongorora zvemvura kuongororwa kwemvura, inoshandiswa zvakanyanya mukuedzwa, muindisitiri, uye kwekuedzwa. Aya machubhu akakosha akagadzirirwa kutsungirira tembiricha yakakwira uye yakaoma yemakemikari mamiriro panguva yekamuri yekugaya. Ngatisvike muganho muzvinhu zvakakosha uye zvakanakisa maitiro ekushandisa cod test tubes.
1️⃣ Zvekushandisa uye Kuvaka
COD Test tubes inowanzogadzirwa kubva kuBoorosilrate girazi, inozivikanwa nekuda kwekunze kwekuwedzera uye kwemakemikari kuramba.
Iwo machubhu akaiswa chisimbiso necrew-cap kuvhara, kazhinji inoenderana nePTFE \ / Silicone Sept yekudzivirira nekukasira.
2️⃣ Digestion Process
COD Test tubes inoshandiswa pamwe chete neye cod digster, iyo inoyera muenzaniso kusvika ku150 ° C kwemaawa maviri.
Munguva iyi, nyaya organic mumuenzaniso ndeye oxidized neine yakasimba oxidizing mumiririri (kazhinji potassium dichromate) pamberi peSulfutic acid.
Huwandu hweokisijeni hunodiwa kune iyi oxidation chiyero cheiyo cod, chinogona kuve chakatemwa spectrophotometrically.
3️⃣ Mabheji uye Zvishandiso
COD Test tubes inowanikwa mumarungu akasiyana kuti ugone kutambira dzakasiyana mhando dzemhando yemhando uye inotarisirwa cod tsika.
Zvakajairika marangi anosanganisira akaderera (3-150 mg \ / l), pakati (20-1500 mg \ / l), uye yakakwira (200-15000 mg \/L).
Aya machubhu anoshandiswa zvakanyanya kuongorora mari uye maindasitiri marara, pamwe nemamiriro ekunze emvura.
4️⃣ maitiro akanakisa
Gara uchitevera mirayiridzo yemugadziri yekuenzanisa, kugaya, uye kuongororwa.
Ita shuwa kuti iyo COD bvunzo tubes yakasununguka kubva kusvibiswa uye kuti sampuli yakanyatsosanganiswa isati yaongororwa.
Shandisa mvura yekureba kwemvura yedunhu uye reagent gadzirira kuderedza kupindira.
5️⃣ Kufungisisa Kukurukurirana
COD bvunzo machubhu ane vane njodzi reagents, senge mercury ne chromium, inoda kubata uye kuraswa.
Pfeka zvakakodzera zvekudzivirira pachako
Nokunzwisisa zvakakosha maficha uye maitiro akanakisa ekushandisa cod bvunzo tubes, iwe unogona kuve nechokwadi chekuongororwa kwakaringana uye kwakavimbika kwemvura, kupa mukudzivirira kwezvakatipoteredza uye hutano hweveruzhinji.
