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消(xiao)(xiao)化(hua)(hua)爐采(cai)用(yong)井式(shi)電(dian)(dian)加熱方(fang)式(shi)，使樣(yang)品(pin)在(zai)井式(shi)電(dian)(dian)加熱爐內加熱取得(de)較佳(jia)熱效應，提高消(xiao)(xiao)煮速度，消(xiao)(xiao)化(hua)(hua)管內逸(yi)(yi)出的SO2等(deng)有(you)害(hai)氣體(ti)，通過排污管經抽吸泵(beng)從水中(zhong)排入下(xia)(xia)水道，有(you)效地抑制有(you)害(hai)氣體(ti)的外(wai)逸(yi)(yi)。采(cai)用(yong)智能溫(wen)度儀表數(shu)控電(dian)(dian)加熱爐內溫(wen)度，并直接顯示溫(wen)度值(zhi)。配(pei)不銹鋼排污罩(zhao)使用(yong)方(fang)便采(cai)用(yong)四氟乙稀密封圈(quan)，無須(xu)更換。那么接下(xia)(xia)來為你介(jie)紹下(xia)(xia)采(cai)購(gou)消(xiao)(xiao)化(hua)(hua)爐需要(yao)(yao)注意的事項有(you)哪些(xie)。1.每(mei)一個樣(yang)品(pin)孔溫(wen)差要(yao)(yao)小，以免樣(yang)品(pin)消(xiao)(xiao)化(hua)(hua)時間相(xiang)差太(tai)大，引起樣(yang)品(pin)消(xiao)(xiao)化(hua)(hua)差別。這是(shi)任(ren)何消(xiao)(xiao)化(hua)(hua)爐的主(zhu)要(yao)(yao)的技(ji)術指標：牽涉到消(xiao)(xiao)化(hua)(hua)爐結構、加熱器的排布、熱傳(chuan)導(dao)介(jie)質、...

消(xiao)化(hua)爐(lu)采(cai)用(yong)(yong)井式(shi)電加(jia)(jia)熱(re)(re)方式(shi)，使樣品在井式(shi)電加(jia)(jia)熱(re)(re)爐(lu)內(nei)加(jia)(jia)熱(re)(re)取得較佳熱(re)(re)效(xiao)應，提高(gao)消(xiao)煮(zhu)速度(du)(du)(du)，消(xiao)化(hua)管內(nei)逸出的(de)SO2等有(you)(you)害(hai)氣(qi)體(ti)，通過排(pai)污管經抽吸泵從水中排(pai)入下(xia)水道(dao)，有(you)(you)效(xiao)地抑制(zhi)有(you)(you)害(hai)氣(qi)體(ti)的(de)外逸。采(cai)用(yong)(yong)智能溫(wen)度(du)(du)(du)儀(yi)表數(shu)控(kong)電加(jia)(jia)熱(re)(re)爐(lu)內(nei)溫(wen)度(du)(du)(du)，并直接顯示(shi)溫(wen)度(du)(du)(du)值。配不(bu)銹鋼(gang)排(pai)污罩使用(yong)(yong)方便采(cai)用(yong)(yong)四氟乙(yi)稀密(mi)封(feng)圈(quan)，無須更換。消(xiao)化(hua)爐(lu)采(cai)用(yong)(yong)特制(zhi)噴塑(su)鋼(gang)板，工作臺面采(cai)用(yong)(yong)不(bu)銹鋼(gang)材(cai)料(liao)制(zhi)成(cheng)，具(ju)有(you)(you)良(liang)好(hao)的(de)耐(nai)腐(fu)蝕性，廢棄密(mi)封(feng)采(cai)用(yong)(yong)聚四氟乙(yi)烯材(cai)料(liao)，安全可靠！爐(lu)內(nei)溫(wen)度(du)(du)(du)連續可調，控(kong)溫(wen)精(jing)度(du)(du)(du)高(gao)，控(kong)溫(wen)穩定。鋁錠一體(ti)加(jia)(jia)熱(re)(re)，溫(wen)差小，樣品消(xiao)化(hua)均勻。控(kong)制(zhi)面板與爐(lu)...

目(mu)前，在許(xu)多行業中(zhong)，樣品的(de)(de)氮(dan)含(han)量或(huo)蛋白質含(han)量直接由氮(dan)測定(ding)(ding)(ding)(ding)儀(yi)(yi)(yi)測定(ding)(ding)(ding)(ding)。基于凱氏定(ding)(ding)(ding)(ding)氮(dan)法的(de)(de)凱氏定(ding)(ding)(ding)(ding)氮(dan)儀(yi)(yi)(yi)具有測試速度快、效率高、樣品測試結(jie)果(guo)平行性(xing)好、風(feng)險系(xi)數(shu)低(di)等優點，深受業內(nei)人(ren)士的(de)(de)歡迎。凱氏定(ding)(ding)(ding)(ding)氮(dan)儀(yi)(yi)(yi)主要(yao)可(ke)以分(fen)為(wei)半(ban)(ban)自(zi)動(dong)(dong)(dong)(dong)定(ding)(ding)(ding)(ding)氮(dan)儀(yi)(yi)(yi)和(he)全(quan)(quan)自(zi)動(dong)(dong)(dong)(dong)定(ding)(ding)(ding)(ding)氮(dan)儀(yi)(yi)(yi)，顧明思議，半(ban)(ban)自(zi)動(dong)(dong)(dong)(dong)定(ding)(ding)(ding)(ding)氮(dan)儀(yi)(yi)(yi)只(zhi)能夠實現(xian)半(ban)(ban)自(zi)動(dong)(dong)(dong)(dong)化的(de)(de)測定(ding)(ding)(ding)(ding)，部分(fen)操作(zuo)還需(xu)人(ren)工輔(fu)助完成(cheng)，而全(quan)(quan)自(zi)動(dong)(dong)(dong)(dong)定(ding)(ding)(ding)(ding)氮(dan)儀(yi)(yi)(yi)的(de)(de)自(zi)動(dong)(dong)(dong)(dong)化程度則更高，真(zhen)正(zheng)實現(xian)了儀(yi)(yi)(yi)器的(de)(de)全(quan)(quan)自(zi)動(dong)(dong)(dong)(dong)化測定(ding)(ding)(ding)(ding)分(fen)析(xi)。下面就來具體介紹一下半(ban)(ban)自(zi)動(dong)(dong)(dong)(dong)定(ding)(ding)(ding)(ding)氮(dan)儀(yi)(yi)(yi)和(he)全(quan)(quan)自(zi)動(dong)(dong)(dong)(dong)定(ding)(ding)(ding)(ding)氮(dan)儀(yi)(yi)(yi)的(de)(de)區別？1、半(ban)(ban)自(zi)動(dong)(dong)(dong)(dong)定(ding)(ding)(ding)(ding)氮(dan)儀(yi)(yi)(yi)半(ban)(ban)自(zi)動(dong)(dong)(dong)(dong)定(ding)(ding)(ding)(ding)氮(dan)儀(yi)(yi)(yi)只(zhi)有蒸餾部分(fen)不含(han)有滴定(ding)(ding)(ding)(ding)，滴定(ding)(ding)(ding)(ding)需(xu)要(yao)...

凱(kai)(kai)氏(shi)定(ding)(ding)氮(dan)(dan)儀還(huan)可用(yong)(yong)于國家標準(zhun)(zhun)中(zhong)，乳(ru)與(yu)乳(ru)制品中(zhong)非(fei)蛋白(bai)氮(dan)(dan)含(han)量的(de)(de)(de)(de)測(ce)(ce)定(ding)(ding)、淀粉(fen)及其衍生(sheng)物氮(dan)(dan)含(han)量的(de)(de)(de)(de)測(ce)(ce)定(ding)(ding)、土(tu)壤中(zhong)氮(dan)(dan)含(han)量的(de)(de)(de)(de)測(ce)(ce)定(ding)(ding)、復混肥料(liao)中(zhong)總氮(dan)(dan)含(han)量的(de)(de)(de)(de)測(ce)(ce)定(ding)(ding)、肥料(liao)中(zhong)銨(an)態氮(dan)(dan)含(han)量的(de)(de)(de)(de)測(ce)(ce)定(ding)(ding)、尿素的(de)(de)(de)(de)測(ce)(ce)定(ding)(ding)等。另外也有(you)使用(yong)(yong)凱(kai)(kai)氏(shi)定(ding)(ding)氮(dan)(dan)儀測(ce)(ce)定(ding)(ding)水中(zhong)氨氮(dan)(dan)、天然橡膠氮(dan)(dan)含(han)量和醬油中(zhong)銨(an)鹽含(han)量的(de)(de)(de)(de)案例。凱(kai)(kai)氏(shi)定(ding)(ding)氮(dan)(dan)儀它的(de)(de)(de)(de)工作(zuo)原理是在(zai)催化劑(ji)的(de)(de)(de)(de)作(zuo)用(yong)(yong)下，利用(yong)(yong)硫酸(suan)(suan)將試樣(yang)消(xiao)化，使有(you)機氮(dan)(dan)分解為(wei)無機氮(dan)(dan)生(sheng)成硫酸(suan)(suan)銨(an)，在(zai)熱(re)蒸汽下向消(xiao)解后(hou)的(de)(de)(de)(de)硫酸(suan)(suan)銨(an)中(zhong)加入堿液進行堿化蒸餾(liu)，后(hou)用(yong)(yong)標準(zhun)(zhun)酸(suan)(suan)溶液滴定(ding)(ding)，根據酸(suan)(suan)的(de)(de)(de)(de)消(xiao)耗(hao)量由式自動計算氮(dan)(dan)含(han)量。它的(de)(de)(de)(de)性能正常與(yu)否(fou)直(zhi)接(jie)影響檢測(ce)(ce)結果的(de)(de)(de)(de)...

定(ding)(ding)(ding)氮(dan)(dan)(dan)(dan)儀(yi)(yi)廣泛(fan)應用于食品加工、飼料(liao)生產、地(di)質(zhi)礦產、化(hua)(hua)工、畜牧土肥、環境監測(ce)(ce)(ce)、醫藥、農(nong)業、科研、教學(xue)、質(zhi)量(liang)監督(du)等領域(yu)，可檢測(ce)(ce)(ce)樣(yang)品中的(de)氮(dan)(dan)(dan)(dan)/蛋(dan)白(bai)質(zhi)含量(liang)、硝態氮(dan)(dan)(dan)(dan)、揮發性鹽基氮(dan)(dan)(dan)(dan)、土壤陽(yang)離子交換量(liang)、橡膠(jiao)中的(de)丙烯(xi)腈含量(liang)。樣(yang)品的(de)氮(dan)(dan)(dan)(dan)含量(liang)或者是(shi)(shi)蛋(dan)白(bai)質(zhi)含量(liang)，都是(shi)(shi)直接(jie)使用定(ding)(ding)(ding)氮(dan)(dan)(dan)(dan)儀(yi)(yi)來進行(xing)(xing)測(ce)(ce)(ce)定(ding)(ding)(ding)。基于凱(kai)氏(shi)定(ding)(ding)(ding)氮(dan)(dan)(dan)(dan)法的(de)凱(kai)氏(shi)定(ding)(ding)(ding)氮(dan)(dan)(dan)(dan)儀(yi)(yi)具有測(ce)(ce)(ce)試(shi)速(su)度快(kuai)、效(xiao)率(lv)高，樣(yang)品測(ce)(ce)(ce)試(shi)結果平行(xing)(xing)性好，危險系(xi)數低等眾多優點，因此深受(shou)行(xing)(xing)業人員的(de)歡迎。凱(kai)氏(shi)定(ding)(ding)(ding)氮(dan)(dan)(dan)(dan)儀(yi)(yi)主(zhu)要可以分為半自動(dong)定(ding)(ding)(ding)氮(dan)(dan)(dan)(dan)儀(yi)(yi)和全自動(dong)定(ding)(ding)(ding)氮(dan)(dan)(dan)(dan)儀(yi)(yi)，顧明思議，半自動(dong)定(ding)(ding)(ding)氮(dan)(dan)(dan)(dan)儀(yi)(yi)只能夠(gou)實(shi)現半自動(dong)化(hua)(hua)的(de)測(ce)(ce)(ce)定(ding)(ding)(ding)，部...

定(ding)(ding)氮(dan)儀是(shi)(shi)一(yi)款智能化(hua)的氮(dan)與蛋(dan)白(bai)質含(han)量分析儀器，采(cai)用內置計算機(ji)控制(zhi)，自(zi)動(dong)(dong)化(hua)完成(cheng)蒸(zheng)餾過(guo)程(cheng)(cheng)，大(da)屏觸摸設置參數，只需輕輕推至取(qu)放硝化(hua)管(guan)把(ba)手(shou)，安(an)全把(ba)手(shou)硝化(hua)管(guan)置于工(gong)作(zuo)部位，關閉安(an)全門，自(zi)動(dong)(dong)完成(cheng)加(jia)水、加(jia)堿與蒸(zheng)餾，工(gong)作(zuo)完成(cheng)后自(zi)動(dong)(dong)關機(ji)并鳴音提(ti)示。定(ding)(ding)氮(dan)儀是(shi)(shi)一(yi)種利用定(ding)(ding)氮(dan)法(fa)對食品(pin)、肥料、農作(zuo)物、土壤等樣(yang)(yang)品(pin)的含(han)氮(dan)量或蛋(dan)白(bai)質含(han)量分析，該(gai)儀器具(ju)有相當(dang)好(hao)的性(xing)價比，僅僅滴定(ding)(ding)過(guo)程(cheng)(cheng)需要人工(gong)操作(zuo)一(yi)下，非(fei)常適(shi)合實驗室(shi)及(ji)檢驗機(ji)構常規檢測。下面(mian)為您介紹(shao)可(ke)提(ti)高定(ding)(ding)氮(dan)儀使用效(xiao)果的方法(fa)：1、樣(yang)(yang)品(pin)前處(chu)理(li)樣(yang)(yang)品(pin)應盡(jin)量選取(qu)具(ju)有代表性(xing)的，大(da)...