Nheyo yekushanda yeKjeldahl nitrogen kutsunga

Zvinoenderana nemusimboti weKjeldahl nitrogen kutsunga, matanho matatu anodiwa pakutsunga, anoti digestion, distillation uye titration.

Kudya: Kupisa nitrogen-ine organic compounds (mapuroteni) pamwe chete neconcentrated sulfuric acid uye catalysts (copper sulfate kana Kjeldahl digestion tablets) kuti iparadze puroteni. Iyo kabhoni nehaidhirojeni zvakaiswa mucarbon dioxide uye mvura kutiza, nepo organic Nitrogen ichishandurwa kuita ammonia (NH3) uye yakasanganiswa nesarufa asidhi kuita ammonium sulfate. (Ammonium NH4+)

Digestion process: kupisa nekupisa kwakadzika kuvira, chinhu chiri muflask chinoiswa carbonized uye chakasviba, uye huwandu hukuru hwefuro hunogadzirwa. Mushure mokunge furo ranyangarika, wedzera moto kuti uchengetedze zvishoma kuvira. Kana iyo mvura ikava yebhuruu-yakasvibirira uye yakajeka, ramba uchipisa kwe05-1h, uye inotonhorera mushure mekupedzisira. (Unogona kushandisa otomatiki digestion chiridzwa kupedzisa pre-kugadzirisa basa)

Distillation: Mushonga unowanikwa unodzikiswa kune vhoriyamu isingaperi uye wobva wawedzerwa neNaOH kuburitsa NH3 nekudiridza. Mushure mekugadzirisa, inounganidzwa mu boric acid solution.

Distillation process: Chekutanga, sampu yakagayiwa inonatswa, NaOH inowedzerwa, uye gasi reammonia rinogadzirwa mushure mekupisa rinopinda mucondenser, uye rinoyerera mubhodhoro rekugamuchira rine boric acid mhinduro mushure mekunyungudutswa. Inogadzira ammonium borate. (Chiratidzo chakasanganiswa chinowedzerwa kune boric acid solution. Mushure mokunge ammonium borate yagadzirwa, mushonga unonwisa unoshanduka kubva kune acidic kuenda kune alkaline, uye ruvara runoshanduka kubva kune yepepuru kuenda kublue-green.)

Titration: Titrate ine hydrochloric acid yakajairwa mhinduro yezvinozivikanwa, verenga iyo nitrogen yemukati zvichienderana nehuwandu hwehydrochloric acid inodyiwa, uye wozoiwedzera neino enderana yekutendeuka kuti uwane mapuroteni. (Titration inoreva nzira yekuongorora uwandu uye zvakare makemikari ekuedza kushanda. Inoshandisa quantitative reaction yemhinduro mbiri kuti ione zviri mune imwe solute. Inotaridza panoperera titration zvichienderana nekushanduka kweruvara kwechiratidzo. uye wobva waona mashandisirwo eiyo yakajairwa mhinduro Vhoriyamu, kuverenga uye kuongorora mhinduro.)

Titration process: Donhedza yakajairwa mhinduro yehydrochloric acid mumushonga weammonium borate kuti uchinje ruvara rwemushonga kubva kubhuruu-girinhi kusvika kune yakatsvuka.

DRK-K616 otomatiki Kjeldahl nitrogen analyzerndeye otomatiki yakangwara analyzer ye nitrogen kugadzwa kwemukati zvichienderana neKjeldahl nzira. Inogona kushandiswa zvakanyanya mukugadzira chikafu, kugadzira chikafu, fodya, kufudza mhuka, fetiraiza yevhu, kutarisa kwezvakatipoteredza, mushonga, kurima, tsvakiridzo yesainzi, kudzidzisa, kutarisa kwemhando uye mamwe minda yekuongorora nitrogen neprotein mu macro uye semi-micro. samples. Inogonawo kushandiswa kune ammonium munyu, Kuonekwa kwemafuta ane mafuta acids / alkali, etc. Paunenge uchishandisa nzira yeKjeldahl kuti uone sampuli, inoda kupinda mumatatu matatu ekugadzirisa, distillation, uye titration. Distillation uye titration ndiwo maitiro makuru ekuyera e DRK-K616 Kjeldahl nitrogen analyzer. Iyo DRK-K616 mhando yeKjeldahl nitrogen analyzer ndeye yakazara otomatiki distillation uye titration nitrogen yekuyera sisitimu yakagadzirwa maererano neiyo yekare Kjeldahl nitrogen determination method; chiridzwa ichi chinopa kurerukira kukuru kune vanoedza marabhoritari mukuita kwekuona nitrogen-protein. , Uye ine hunhu hwekushandisa kwakachengeteka uye kwakavimbika; kushanda kuri nyore uye kuchengetedza nguva. Iyo yeChinese dialogue interface inoita kuti mushandisi ave nyore kushanda, iyo interface ine hushamwari, uye ruzivo rwakaratidzwa rwakapfuma, kuitira kuti mushandisi anogona kukurumidza kubata kushandiswa kwechiridzwa.

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KUBVUNZA ZVINO
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Nguva yekutumira: Zvita-23-2021
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