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id="z8nokgc" class="NyNewsdetail_tips">更新時(shí)間：2023-08-10 點(diǎn)擊次數：1793</div> <div id="sflrsjf" class="NyNewsdetail_con"> <div>　　COD在線(xiàn)檢測儀是指能夠在線(xiàn)實(shí)時(shí)檢測水中COD（化學(xué)需氧量）含量的儀器。它能夠自動(dòng)化地完成COD測定，無(wú)需人工干預，檢測數據精度高、穩定性好，廣泛應用于污水處理、環(huán)保監測等領(lǐng)域。那么，COD在線(xiàn)檢測儀的原理是什么呢？</div><div>　　COD在線(xiàn)檢測儀的原理基于分光光度法，其流程包括試樣的預處理、試樣的加熱消解、產(chǎn)生色Reagent Solution 1的加入、產(chǎn)生色Reagent Solution 2的加入、反應液的等溫靜置等步驟。</div><div>　　首先，將含COD的水樣加入COD在線(xiàn)檢測儀中，進(jìn)行預處理。預處理過(guò)程將樣品中的有機物氧化，使其轉化為可測定的無(wú)機物質(zhì)。隨后，加熱消解是使樣品中的有機物與一定量的氧化劑反應,分解成CO2和H2O，將有機物中的碳氧化為氧化態(tài)碳形成一個(gè)短鏈烷基醛，然后被該氧化劑進(jìn)一步氧化至碳酸根、硫酸根、氮酸根等形式。之后，加入產(chǎn)生色的Reagent Solution 1，使COD和某些化學(xué)物質(zhì)發(fā)生反應，產(chǎn)生顏色。Reagent Solution 2的加入可使有機物發(fā)生更多的氧化，從而提高COD的測量準確性。</div><div>　　顏色反應后，在一個(gè)特定的時(shí)間內平衡反應，如容積、反應時(shí)間等條件規范化，使反應達到固定狀態(tài)，消除率能夠高達99％以上。經(jīng)計算可得出試樣COD的測量數據，可使峰值調零提高測量精度。這便是COD在線(xiàn)檢測儀的基本原理過(guò)程。</div><div>　　COD在線(xiàn)檢測儀的使用具有許多優(yōu)點(diǎn)。在污水處理中，COD在線(xiàn)檢測儀可實(shí)現在線(xiàn)檢測、實(shí)時(shí)數據、自動(dòng)報警等功能，尤其是在污水處理廠(chǎng)中COD在線(xiàn)檢測儀的安裝，大大降低了反應時(shí)間、成本和污染風(fēng)險。此外，COD在線(xiàn)檢測儀的精度和穩定性?xún)?yōu)于傳統的COD測定方法，能夠實(shí)現數據的精準測量和數據記錄，取到了很好的測量結果。</div><div>　　在環(huán)保監測方面，COD在線(xiàn)檢測儀也起到了不可替代的作用。COD值是測定水中氧化可降解物的能力指標，COD在線(xiàn)檢測儀的應用提高了監測數據的準確性，使污染管制更加精準化，對于保護環(huán)境和人類(lèi)健康起到了重要的作用。</div><div>　　COD在線(xiàn)檢測儀基于光度法，通過(guò)試樣的預處理、加熱消解、反應液的等溫靜置等步驟將大量COD化學(xué)物質(zhì)轉化成易于測定的無(wú)機物質(zhì)，然后通過(guò)產(chǎn)生色等作用來(lái)測定樣品的COD含量。COD在線(xiàn)檢測儀不僅能夠在線(xiàn)實(shí)時(shí)檢測水中COD含量，而且檢測數據精度高、穩定性好，具有廣泛的應用于污水處理、環(huán)保監測等領(lǐng)域的優(yōu)點(diǎn)。</div> </div> <div id="p3s8dbx" class="ly_PrevNext"> <ul> <li>上一篇：<a href="/Article-3440570.html">工業(yè)在線(xiàn)氨水濃度計具有自動(dòng)記錄數據和生成報告的功能</a></li> 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