消化爐知識經驗點分享
很多人隻知道凱氏定氮儀,對消化爐卻沒有太多的了解,最終出現測定結果不準確、誤(wu)差(cha)等(deng)一(yi)係(xi)列(lie)問(wen)題(ti)。因(yin)此(ci)在(zai)利(li)用(yong)專(zhuan)業(ye)儀(yi)器(qi)開(kai)展(zhan)試(shi)驗(yan)前(qian),我(wo)們(men)必(bi)須(xu)熟(shu)知(zhi)儀(yi)器(qi)本(ben)身(shen)及(ji)配(pei)套(tao)設(she)備(bei)的(de)構(gou)造(zao)原(yuan)理(li)及(ji)操(cao)作(zuo)注(zhu)意(yi)事(shi)項(xiang)。消(xiao)化(hua)爐(lu)也(ye)不(bu)例(li)外(wai),它(ta)是(shi)為(wei)加(jia)速(su)樣(yang)品(pin)消(xiao)化(hua)煮(zhu)解(jie)時(shi)間(jian),提(ti)高(gao)蛋(dan)白(bai)質(zhi)測(ce)定(ding)速(su)度(du)的(de)理(li)想(xiang)儀(yi)器(qi)。它(ta)還(hai)能(neng)將(jiang)消(xiao)化(hua)管(guan)內(nei)溢(yi)出(chu)的(de)有(you)害(hai)氣(qi)體(ti),經(jing)過(guo)抽(chou)氣(qi)泵(beng)溶(rong)於(yu)水(shui)中(zhong)排(pai)入(ru)下(xia)水(shui)道(dao),避(bi)免(mian)了(le)廢(fei)氣(qi)對(dui)環(huan)境(jing)的(de)汙(wu)染(ran),確(que)保(bao)了(le)操(cao)作(zuo)人(ren)員(yuan)的(de)人(ren)身(shen)安(an)全(quan)。

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消(xiao)化(hua)爐(lu)剛(gang)開(kai)始(shi)消(xiao)化(hua)時(shi)要(yao)注(zhu)意(yi)溫(wen)度(du)控(kong)製(zhi),最(zui)好(hao)使(shi)用(yong)可(ke)調(tiao)電(dian)爐(lu),或(huo)在(zai)電(dian)爐(lu)上(shang)多(duo)加(jia)幾(ji)層(ceng)石(shi)棉(mian)網(wang),避(bi)免(mian)溫(wen)度(du)過(guo)高(gao)。當(dang)消(xiao)化(hua)過(guo)快(kuai)時(shi),易(yi)引(yin)起(qi)副(fu)反(fan)應(ying),可(ke)能(neng)使(shi)部(bu)分(fen)氮(dan)被(bei)氧(yang)化(hua)變(bian)成(cheng)分(fen)子(zi)狀(zhuang)態(tai)揮(hui)發(fa)逸(yi)出(chu),造(zao)成(cheng)結(jie)果(guo)偏(pian)低(di);消化時過於激烈沸騰,泡沫也會將試樣濺到瓶壁上、瓶ping頸jing處chu,高gao溫wen焦jiao化hua後hou不bu易yi洗xi脫tuo,尤you其qi是shi濺jian到dao瓶ping頸jing處chu,更geng不bu易yi洗xi脫tuo下xia來lai,也ye容rong易yi造zao成cheng後hou期qi消xiao化hua困kun難nan和he消xiao化hua不bu完wan全quan,使shi結jie果guo偏pian低di。所suo以yi消xiao化hua時shi,一yi般ban需xu微wei微wei加jia熱re10-20分鍾後,泡沫減少,消化液大部分呈灰黑色透明液,二氧化硫白色煙霧增加時,才可升高溫度,使溶液保持微沸狀態。
總(zong)而(er)言(yan)之(zhi),消(xiao)化(hua)爐(lu)是(shi)開(kai)展(zhan)蛋(dan)白(bai)質(zhi)測(ce)定(ding)工(gong)作(zuo)中(zhong)很(hen)有(you)幫(bang)助(zhu)的(de)儀(yi)器(qi),以(yi)上(shang)跟(gen)大(da)家(jia)分(fen)享(xiang)的(de)這(zhe)些(xie)知(zhi)識(shi)點(dian),都(dou)是(shi)根(gen)據(ju)小(xiao)編(bian)實(shi)踐(jian)經(jing)驗(yan)總(zong)結(jie)的(de),希(xi)望(wang)每(mei)一(yi)位(wei)用(yong)戶(hu)都(dou)能(neng)夠(gou)做(zuo)到(dao),特(te)別(bie)是(shi)對(dui)於(yu)一(yi)些(xie)新(xin)手(shou)朋(peng)友(you)來(lai)說(shuo),不(bu)僅(jin)要(yao)看(kan)懂(dong),而(er)且(qie)要(yao)學(xue)以(yi)致(zhi)用(yong)。當(dang)然(ran)如(ru)果(guo)您(nin)有(you)任(ren)何(he)關(guan)於(yu)此(ci)類(lei)儀(yi)器(qi)的(de)疑(yi)問(wen),都(dou)可(ke)以(yi)聯(lian)係(xi)托(tuo)普(pu)雲(yun)農(nong)進(jin)行(xing)谘(zi)詢(xun)。



