COD (mankhwala oxygen akufuna) amangoyesedwa kwambiri omwe amafunikira mpweya wowonjezera womwe umafunikira kuti ukhale ndi vuto la organic komanso ogwiritsa ntchito m'madzi. Ndi gawo lofunikira powunikira mtundu wamadzi ndi mphamvu ya njira yamankhwala.

Kuti mumvetsetse momwe ma Cilod a Cials amagwiritsa ntchito magetsi, chonde onani nkhaniyi:"Mfundo ya ntchito ya cod vial. "

CATT CATT

Matamale apamwamba a COD Nthawi zambiri zimapangidwa ndi galasi la 5.0 la mabotil, lomwe lili ndi vuto labwino kwambiri pakukoka kwamafuta ndi kukokoloka kwamankhwala. Chipinda chabwino cha cod chikuyenera kukhala chosavuta kugwiritsa ntchito, chosavuta kubaya jekeseni ndikukhetsa yankho, ndipo osakonda kutaya.

Ma tues a cod amapindika mwapadera machubu opangidwa mwapadera omwe amagwiritsidwa ntchito pakuwunika kwa cod. Machubu awa amakhala ndi kuchuluka kwa potaziyamu diokromate (wothandizira oxiding) ndi sulfuric acid, limodzi ndi chothandizira. Malo ofunikira a

Ma tues a cod amaphatikiza:

Mphamvu: 10 ml, yokhala ndi mphamvu zambiri 12 ml

Kutalika: 10 ± 0,02 cm

Diameter: 1.58 ± 0,02 cm

Khosi mkati mwake: 0.95 ± 0,02 cm

Mapazi akunja: 1.50 ± 0,02 cm

Mtundu wagalasi wokwera kwambiri umatsimikizira kusanthula kwa cossimetric kwa cood.

Njira Yoyeserera ya COD

A16mm cod mayesoNdondomeko imakhudza njira zotsatirazi:

1. Madzi kapena zilembo zamadzi zotayira (nthawi zambiri 2 ml) amawonjezeredwa ku chubu cha cod omwe ali ndi chimbudzi ndi chothandizira.

2. Chubucho chimasungidwa ndi polypropylene, chipewa cha PTFE-chokhazikika ndikuwotcha mu digishi ya ma 150 ° C kwa maola awiri.

3. Panthawi yotentha, zomwe zakhala kuti zikugwirizana ndi zitsanzozo zimayandikizika ndi potaziyamu Dichromate, kuteza ku chromish wobiriwira.

4. The COD ndende imatsimikiziridwa ndikuyeza chiwonetsero cha chiwonetserochi pogwiritsa ntchito mawonekedwe a Spectophotometer pamutu wina, kutengera cents:

Otsika (5-150 ppm): Kuyeza 420 nm

Mitundu yapamwamba (20-1500 ppm): Kuyeza 620 nm

Mukufuna kudziwa zambiri za chubu cha COD, chonde onani nkhaniyi: CPE YOPHUNZIRA NDI PP COST CART PROME TESSIS

Kukonzekera zitsanzo ndi kusamalira

Ma Sayansi ndi zinyalala amatha kukhala ndi chinthu chosasinthika kapena tinthu tating'onoting'ono. Zitsanzo zoterezi zimatha kukhala ndi blender musanayesere kulondola komanso kubwereza. Kuchuluka kwa madzi kumafunikira kuti achepetse zitsanzozo zimatengera cod osiyanasiyana a chubu choyeserera.

Ma cod ndi mapulogalamu

CATT CATTakupezeka m'mitundu yosiyanasiyana kuti igwirizane ndi zitsanzo zingapo:

Kutsika kotsika: 5-150 ppm

Mitundu yapamwamba: 20-1500 ppm

Izi ndizoyenera kupenda zitsanzo zosiyanasiyana, kuphatikiza:

a. Madzi osaphika othandizira

b. Madzi otayika ku mafakitale ndi masitepe

c. Zosintha kuchokera kuzomera zonyowa madzi

d. Madzi ndi madzi pansi

Pogwiritsa ntchito zoyeneraCOD YOPHUNZIRAMitundu yotengera cod yomwe ikuyembekezeredwa, zotsatira zolondola zitha kupezeka pazowunikira zamadzi zabwino ndi chithandizo chamankhwala.

Kuti mumve zambiri pa machubu a cod ndi mapulogalamu awo pakuwunika kwamadzi, onani nkhani iyi:"Momwe COBE YOPHUNZIRA YA COD imagwiritsidwa ntchito powunikira madzi."

M'mbuyomu:

Kodi HPLC imasiyana bwanji ndi ion chromatography? 4 mfundo

Ena:

Udindo wa Septa mu GC mutu wamatumbo

Ma tag: COD-Thumba-chubu-bati COD-Thumba-chubu CUD-chubu COD-Thumba-Cude-mtengo CUD-TIMEN-chubu COD-Cuder COD-TUBE-wogulitsa 16mm-cod-vial Chovala-babu cod-vial

Kufunsa