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HMA-2000系(xi)列重金屬(shu)(shu)在(zai)線分(fen)析儀(yi)采用陽極溶(rong)(rong)出伏安法檢(jian)測(ce)原理。經預處(chu)理的水樣在(zai)高(gao)溫高(gao)壓消(xiao)解后,與電(dian)(dian)解液(ye)(ye)在(zai)檢(jian)測(ce)池(chi)內混合,然(ran)后在(zai)電(dian)(dian)極上(shang)(shang)施(shi)加一(yi)還原電(dian)(dian)勢(shi)將混合液(ye)(ye)中的待(dai)測(ce)金屬(shu)(shu)離子富集(ji)(ji)在(zai)工作(zuo)(zuo)電(dian)(dian)極上(shang)(shang),再按階(jie)梯脈沖方式(shi)持續改(gai)變外加電(dian)(dian)勢(shi),使富集(ji)(ji)在(zai)工作(zuo)(zuo)電(dian)(dian)極上(shang)(shang)的金屬(shu)(shu)元素溶(rong)(rong)出,并檢(jian)測(ce)溶(rong)(rong)出時的電(dian)(dian)流信號強(qiang)度(du)(du),根據溶(rong)(rong)出電(dian)(dian)流信號峰強(qiang)度(du)(du)換(huan)算得(de)到被測(ce)組分(fen)的濃度(du)(du)。該系(xi)列中具體儀(yi)器如下: HMA-2000(Pb) HMA-2000(Cd) HMA-2000(As) HMA-2000(Hg)
HMA-2000系(xi)列重金屬在(zai)線分析儀采用陽極(ji)溶出(chu)伏(fu)安法檢(jian)(jian)測原理(li)。經(jing)預(yu)處理(li)的水樣在(zai)高(gao)溫高(gao)壓(ya)消解(jie)后,與電(dian)(dian)(dian)(dian)解(jie)液(ye)在(zai)檢(jian)(jian)測池內混(hun)合(he),然后在(zai)電(dian)(dian)(dian)(dian)極(ji)上施加(jia)(jia)一還原電(dian)(dian)(dian)(dian)勢將混(hun)合(he)液(ye)中的待測金屬離子富(fu)集在(zai)工作電(dian)(dian)(dian)(dian)極(ji)上,再按階梯脈沖(chong)方式持續(xu)改變外加(jia)(jia)電(dian)(dian)(dian)(dian)勢,使富(fu)集在(zai)工作電(dian)(dian)(dian)(dian)極(ji)上的金屬元素溶出(chu),并檢(jian)(jian)測溶出(chu)時(shi)的電(dian)(dian)(dian)(dian)流(liu)信號強度(du),根據溶出(chu)電(dian)(dian)(dian)(dian)流(liu)信號峰強度(du)換算得到被測組分的濃(nong)度(du)。該系(xi)列中具(ju)體儀器如下: HMA-2000(Pb) HMA-2000(Cd) HMA-2000(As) HMA-2000(Hg)
l 采用陽極溶出伏安法檢測技術,檢測靈敏度高,檢出限可達0.5ug/L;
l 專利的在線順序注射平臺,試劑消耗為常規技術的 1/10~1/5,運行維護工作量低;
l 高精度注射泵的非接觸式液體定量設計,樣品\試劑體積定量穩定,無需頻繁更換泵管;
l 密閉式高溫高壓樣品消解技術,消解速度快,轉化效率高,實現總含量的檢測;
l 儀器實時監控試劑余量,及時提示用戶補充,有效避免儀器無試劑空轉;
l 周期、定時等多樣的測量模式,可根據排水情況靈活設定,方便現場應用。