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大電(dian)(dian)(dian)(dian)流(liu)電(dian)(dian)(dian)(dian)化學工(gong)作站可直(zhi)接用于超(chao)微(wei)電(dian)(dian)(dian)(dian)極(ji)(ji)(ji)上的穩態電(dian)(dian)(dian)(dian)流(liu)測量(liang)(liang)。如果(guo)與微(wei)電(dian)(dian)(dian)(dian)流(liu)放大器及(ji)屏(ping)蔽箱連接，可測量(liang)(liang)1pA或更低的電(dian)(dian)(dian)(dian)流(liu)。如果(guo)與大電(dian)(dian)(dian)(dian)流(liu)放大器連接，電(dian)(dian)(dian)(dian)流(liu)范(fan)圍可拓寬為±100A。某些實驗方法(fa)(fa)的時間(jian)(jian)尺度的數量(liang)(liang)級可達l0倍，動態范(fan)圍十分寬廣，一些工(gong)作站甚至沒有時間(jian)(jian)記錄的限(xian)制。可進(jin)行循環伏安(an)法(fa)(fa)、交(jiao)流(liu)阻抗(kang)法(fa)(fa)、交(jiao)流(liu)伏安(an)法(fa)(fa)、電(dian)(dian)(dian)(dian)流(liu)滴(di)(di)定、電(dian)(dian)(dian)(dian)位滴(di)(di)定等(deng)測量(liang)(liang)。工(gong)作站可以(yi)同(tong)時進(jin)行兩電(dian)(dian)(dian)(dian)極(ji)(ji)(ji)、三電(dian)(dian)(dian)(dian)極(ji)(ji)(ji)及(ji)四(si)(si)電(dian)(dian)(dian)(dian)極(ji)(ji)(ji)的工(gong)作方式。四(si)(si)電(dian)(dian)(dian)(dian)極(ji)(ji)(ji)可用于液/液界面電(dian)(dian)(dian)(dian)化學測量(liang)(liang)，對于大電(dian)(dian)(dian)(dian)流(liu)或低阻抗(kang)電(dian)(dian)(dian)(dian)解池(chi)(chi)(例如電(dian)(dian)(dian)(dian)池(chi)(chi))也十分重(zhong)要，可消除...

該智能(neng)粘(zhan)度計用(yong)于(yu)(yu)質(zhi)量控制(zhi)，并建(jian)立了模塊化(hua)、易用(yong)性(xing)和用(yong)戶指(zhi)引智能(neng)化(hua)等(deng)新標準。儀器(qi)采(cai)集簡單(dan)粘(zhan)度曲(qu)線或進行(xing)更為(wei)復雜流(liu)變研(yan)究（在旋轉(zhuan)和振蕩模式下）的(de)理想(xiang)ViscotesteriQ流(liu)變儀可作(zuo)為(wei)獨立裝置運行(xing)，或由軟件控制(zhi)運行(xing)，其大小(xiao)和占用(yong)空(kong)間使其便(bian)于(yu)(yu)攜帶使用(yong)，或用(yong)作(zuo)質(zhi)量控制(zhi)實驗室的(de)重要(yao)工具(ju)。智能(neng)粘(zhan)度計的(de)優點：1、個性(xing)化(hua)1）可滿(man)足您的(de)質(zhi)量控制(zhi)需求(qiu)的(de)粘(zhan)度計。2）設計精巧，便(bian)于(yu)(yu)不同測量配置之間的(de)互換(huan)。3）高動態、強(qiang)大的(de)EC電機，便(bian)于(yu)(yu)提(ti)高測量靈活性(xing)。4）振蕩模式可選。5）自帶Peltier或液體...

恒(heng)電(dian)(dian)(dian)位(wei)(wei)(wei)(wei)(wei)儀(yi)作(zuo)(zuo)(zuo)為電(dian)(dian)(dian)路(lu)(lu)結(jie)構(gou)不(bu)(bu)復雜，質量良好的儀(yi)器很(hen)少出電(dian)(dian)(dian)路(lu)(lu)故(gu)(gu)障(zhang)(zhang)。在與(yu)管道(dao)等組(zu)成(cheng)的陰極保(bao)護(hu)(hu)系(xi)統(tong)中有些常(chang)見(jian)故(gu)(gu)障(zhang)(zhang)發(fa)生(sheng)，主要(yao)現象(xiang)是(shi)(shi)(shi)輸出消失(shi)或(huo)失(shi)控，一般(ban)用(yong)毫伏(fu)計(ji)指示的控制電(dian)(dian)(dian)位(wei)(wei)(wei)(wei)(wei)——保(bao)護(hu)(hu)電(dian)(dian)(dian)位(wei)(wei)(wei)(wei)(wei)不(bu)(bu)同(tong)情(qing)況(kuang)(kuang)作(zuo)(zuo)(zuo)為判斷恒(heng)電(dian)(dian)(dian)位(wei)(wei)(wei)(wei)(wei)儀(yi)工(gong)作(zuo)(zuo)(zuo)是(shi)(shi)(shi)否(fou)正(zheng)常(chang)的依據，現象(xiang)不(bu)(bu)外三種：電(dian)(dian)(dian)位(wei)(wei)(wei)(wei)(wei)升(sheng)(sheng)高，電(dian)(dian)(dian)位(wei)(wei)(wei)(wei)(wei)降(jiang)(jiang)低，電(dian)(dian)(dian)位(wei)(wei)(wei)(wei)(wei)誤(wu)差(cha)；當然電(dian)(dian)(dian)位(wei)(wei)(wei)(wei)(wei)升(sheng)(sheng)高和降(jiang)(jiang)低也(ye)(ye)是(shi)(shi)(shi)誤(wu)差(cha)，誤(wu)差(cha)也(ye)(ye)是(shi)(shi)(shi)升(sheng)(sheng)高和降(jiang)(jiang)低，但是(shi)(shi)(shi)與(yu)使用(yong)實際結(jie)合就知道(dao)區別了：前二是(shi)(shi)(shi)失(shi)保(bao)狀況(kuang)(kuang)下(xia)(xia)的升(sheng)(sheng)高和降(jiang)(jiang)低，后一是(shi)(shi)(shi)有保(bao)護(hu)(hu)狀況(kuang)(kuang)下(xia)(xia)的升(sheng)(sheng)高和降(jiang)(jiang)低。處理恒(heng)電(dian)(dian)(dian)位(wei)(wei)(wei)(wei)(wei)儀(yi)故(gu)(gu)障(zhang)(zhang)，應充分(fen)利(li)用(yong)儀(yi)器的開關(guan)表計(ji)，結(jie)合不(bu)(bu)同(tong)位(wei)(wei)(wei)(wei)(wei)置狀況(kuang)(kuang)，先判明故(gu)(gu)障(zhang)(zhang)發(fa)生(sheng)在儀(yi)...

原(yuan)子沉(chen)(chen)(chen)(chen)積(ji)系統(tong)是(shi)通(tong)過將氣(qi)相(xiang)前(qian)(qian)驅(qu)體(ti)(ti)脈沖交替(ti)地通(tong)入反(fan)(fan)應(ying)器并(bing)在(zai)(zai)沉(chen)(chen)(chen)(chen)積(ji)基(ji)體(ti)(ti)上化(hua)學吸(xi)附并(bing)反(fan)(fan)應(ying)而形成沉(chen)(chen)(chen)(chen)積(ji)膜的一(yi)種方法(技術)。當前(qian)(qian)驅(qu)體(ti)(ti)達到沉(chen)(chen)(chen)(chen)積(ji)基(ji)體(ti)(ti)表(biao)面(mian)，它們會在(zai)(zai)其(qi)表(biao)面(mian)化(hua)學吸(xi)附并(bing)發生表(biao)面(mian)反(fan)(fan)應(ying)。在(zai)(zai)前(qian)(qian)驅(qu)體(ti)(ti)脈沖之間需要用(yong)惰(duo)性氣(qi)體(ti)(ti)對原(yuan)子層沉(chen)(chen)(chen)(chen)積(ji)反(fan)(fan)應(ying)器進(jin)行清洗。由此可(ke)知(zhi)沉(chen)(chen)(chen)(chen)積(ji)反(fan)(fan)應(ying)前(qian)(qian)驅(qu)體(ti)(ti)物(wu)(wu)質(zhi)能(neng)否在(zai)(zai)被沉(chen)(chen)(chen)(chen)積(ji)材(cai)料表(biao)面(mian)化(hua)學吸(xi)附是(shi)實(shi)現原(yuan)子層沉(chen)(chen)(chen)(chen)積(ji)的關(guan)鍵(jian)。氣(qi)相(xiang)物(wu)(wu)質(zhi)在(zai)(zai)基(ji)體(ti)(ti)材(cai)料的表(biao)面(mian)吸(xi)附特(te)征可(ke)以看出，任(ren)何氣(qi)相(xiang)物(wu)(wu)質(zhi)在(zai)(zai)材(cai)料表(biao)面(mian)都(dou)可(ke)以進(jin)行物(wu)(wu)理(li)吸(xi)附，但(dan)是(shi)要實(shi)現在(zai)(zai)材(cai)料表(biao)面(mian)的化(hua)學吸(xi)附必須具有一(yi)定的活化(hua)能(neng)，因此能(neng)否實(shi)現原(yuan)子層沉(chen)(chen)(chen)(chen)積(ji)，選擇合適的...

德國(guo)進口(kou)玻(bo)(bo)碳(tan)是將(jiang)聚丙烯腈樹脂或酚(fen)醛樹脂等(deng)在(zai)惰性(xing)(xing)氣氛中(zhong)緩慢加熱至高溫(wen)處理成(cheng)外(wai)形似(si)玻(bo)(bo)璃狀(zhuang)的(de)非(fei)晶形碳(tan)，適于作(zuo)電(dian)極(ji)的(de)電(dian)子(zi)導體材料，在(zai)乒乓球底板中(zhong)也被廣泛使用(yong)。德國(guo)進口(kou)玻(bo)(bo)碳(tan)的(de)優點是導電(dian)性(xing)(xing)好(hao)，化(hua)學穩定性(xing)(xing)高，熱脹系數小，質(zhi)地堅硬，氣密性(xing)(xing)好(hao)，可(ke)制成(cheng)圓柱(zhu)、圓盤等(deng)電(dian)極(ji)形狀(zhuang)，用(yong)它作(zuo)基體還可(ke)制成(cheng)汞膜(mo)玻(bo)(bo)碳(tan)電(dian)極(ji)和化(hua)學修飾電(dian)極(ji)等(deng)。在(zai)電(dian)化(hua)學實驗或電(dian)分(fen)析(xi)化(hua)學中(zhong)得到日(ri)益廣泛的(de)應(ying)用(yong)。固(gu)體電(dian)極(ji)表面(mian)的(de)處理是進行(xing)機(ji)械研磨、拋光至鏡面(mian)程度，特別當電(dian)極(ji)表面(mian)上存在(zai)惰化(hua)層(ceng)或很(hen)強的(de)吸附層(ceng)時(shi)，必須用(yong)機(ji)械或加熱的(de)方法處理。德國(guo)進口(kou)玻(bo)(bo)...