Kwanakin da suka gabata, akwai labarai da suka fashe cewa sanannen babban abincin abinci na Amurka, Sabri, ya sayar da shi a Arewacin Amurka yana ƙunshe da wani abinci da ake kira "nitrogen dimethylamide" (AzodicarbonamideA cikin sinadarai, wannan sinadi yawanci ana mallakar shi a matsayin kayan aiki na roba soles da kuma yoga mats, wannan sinadi ya bayyana a cikin kayan aiki na abinci mai daɗi akalla shekara guda. Kuma an fahimci cewa ban da Cypress, mafi yawan burodi da aka sayar a Starbucks, McDonald's, Burger King da manyan kasuwanni suna ƙunshe da wannan sinadin. Tun daga wannan lokacin, masana'antun sarkar abinci mai sauri da yawa sun shafi kwalliya, suna shiga cikin tambayoyin da ke ƙunshe da kayan kumfa **. A wata hira da kafofin watsa labarai na "Mataimakin Daraktan Ma'aikatar Abinci da Magunguna" ta Taiwan, Jiang Yumei ya ce 'yan kasuwa don samun dandano mai kyau don sayar da gari, wasu za su zaɓi ƙara acetaminophen. Isonitramide yana da tasirin oxidation da whitening, wanda yawanci aka ƙara a cikin gari a matsayin mai ƙarfafawa don ƙarfafa ƙarfi da ƙarfin gluten. Hakanan ana iya amfani da shi a matsayin mai saurin fermentation na abinci mai gasa.

Kwamitin Kula da Abinci na Majalisar Dinkin Duniya a halin yanzu(Codex)da AmurkaFDADukansu an lissafa su a matsayin ƙarin abinci na halal, amma EU da Ostiraliya sun hana amfani da sinadarai saboda zai iya haifar da cututtukan numfashi da rashin lafiya. bisa gaFDAiyakancewar nitrogen dimethylamide abun ciki a kowace kilo na burodi ba za a wuce45mg, ba zai shafi lafiyar jiki ba. A halin yanzu kasarmuGB2760Ka'idodin tsabtace-tsabtace don amfani da kayan abinci(ƙunshi1997～2006Year ƙarin iri)Ka tsara farin alkamaADA** Amfani da0.045g/kg. Duk da cewa kasarmu ta tsara adadin ** amfani da isoacetamide a cikin gari, a halin yanzu ba a gani game da gariADARahoton hanyoyin gwaji mai sauri, babu ƙa'idodin gwaji masu dacewa. Kamfanin ya kafaLC-3000Abubuwan binciken chromatography na gwaji na isoazotamide a cikin gariHanyar bincike, hanyar kafin sarrafawa mai sauki, high hankali, iya amfani da yawa a cikin gariADAgwajin.

I. Kayan aiki da reagents

RuzhuangLC-3000Irin ingantaccen ruwa chromatographer tare da atom sampler da diode array detector(DAD); Oscillator(SA400model, japanYamatokamfanin); centrifugal inji(Universal 32model, JamusHettichkamfanin); Mai haɗuwa da vortex(M37610-33model, AmurkaBarnsteadkamfanin); bushewa nitrogen concentrator(NC-2012nau'i, Luchuang bincike kayan aiki Co., Ltd).

ruwa don deionized ruwa; Acenitrile, Dimethylformamide ne mai tsabta chromatography; acetone, orthohexane domin nazarin tsabta; Filter fim(0.20μmruwa); Misalain samfurori na isonitramide(Tsarki mafi girma fiye da99.0%)saya daga AmurkaChemserviceKamfanin.

II. Standard bayani shirya

Daidai auna daidaitaccen adadin daidaitaccen abubuwa, narkewa da dimethyl formalamide da aka tsara1000mg/LStandard ajiya ruwa, rarraba a cikin kwalba mai ruwa, a-80℃ ajiye a cikin firiji,2Amfani a cikin mako. Amfani da kamar yadda ake bukata20mmol/LAmmonium acetate ruwa bayani shirya misali aiki bayani.

3. Samfurin hanyoyin sarrafawa

Ka kira gari1g(** zuwa0.001g)a cikin50mLPlastic centrifugal bututun da aka kara10mLAcetone, oscillating cirewa a dakin zafin jiki15min，5000r/mincentrifugal5min. dauki sama Layer5mLAcetone daga40℃ nitrogen bushe zuwa kusan bushewa, tare da20mmol/LAmmonium acetate ruwa mafita daidaitacce zuwa1mLsake shiga1mLOrtohexane, wani vortex oscillation. Sake layering, cire ƙasa layer ruwa mafita tace fim, nan da nan yi ruwa phase analysis.

IV. ruwa chromatography yanayi

Tsarin Chromatography:Nucleosil100-5CN，250mm×416mm(i.d.)，5μm; tsabar zafin jiki:25℃； gudun gudun:0.8mL/min; daidai tsabtace:20mmol/LAmmonium acetate ruwa mafita-Acenitrile(girman rabo80∶20); Gano wavelength:245nm; yawan samfurin:10μL.

Wannan adazolamide ganowa ruwa chromatography analysis tsari a cikin gari mAikace-aikace ga: daban-daban fura masana'antu, abinci kamfanin, m fura kamfanin, abinci magunguna kulawa, ingancin kulawa da sauransu.

Amfanin sabis na Luzhuang Company:
1Duk kayayyakin kamfanin sun biyo tsananin gwajin masana'antu, daban-daban alamun fasaha sun dace da buƙatun ƙasa masu dacewa. Kayayyakin shigar da debugging ko free waya jagora ta hanyar fasaha sabis injiniya.
2Bayan samfurin shigarwa karɓar cancanta, a cikin shekara guda warranty lokaci, ban da mutum lalacewa dalilai, tabbatar da mu kamfanin kyauta gyara, kayan aiki rayuwa gyara; Kudin kuɗi ne kawai don kayan da ke lalacewa, don tallafin fasaha ba tare da biyan kuɗi ba da kuma kayan haɗi masu kyau.
3Taimakon waya a kan lokaci, sauƙi da sauri amsa lokaci; Ingantaccen, ingancin sabis kafin-tallace-tallace bayan rarraba a cikin *** kewayon；Phone jagora bayan kira gyara ko72Abokin ciniki magance matsalolin amfani da kayan aiki a cikin sa'o'i.
4Free shekara-shekara ba daidai ba gas chromatography, ruwa chromatography ka'idodin, nazari, aikace-aikace, kayan aiki aiki koyo.More samfurin bayanai waya0632-5080618kohttp://www.lcsepu.com www.sepu17.com www.sdlcyq.comKoyi shawara.