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<div id="gljo9fygc" class="main_right"> <div id="gljo9fygc" class="main_top1"> <p>您的位置：<a href="/">首頁</a> > <a href="/article.html" title="技術(shù)文章">技術(shù)文章</a> > 便攜式COD測定儀的工作原理和好處都有哪些？</p> <big>技術(shù)文章</big> </div> <div id="gljo9fygc" class="clear"></div> <div id="gljo9fygc" class="news_top"> <h1>便攜式COD測定儀的工作原理和好處都有哪些？</h1> <p>更新時間：2020-09-10 瀏覽次數(shù)：<span id="llcs">831</span> </p> </div> <div id="gljo9fygc" class="news_article" deep="2"> <div><span style="font-size: 16px;"><br /></span></div><div><span style="font-size: 16px;"> 景弘<span style="color: rgb(0, 0, 0);"><strong><a href="http://m.xinshengjt.com/Products-30477289.html" target="_blank"><span style="color: rgb(0, 0, 0);">便攜式COD測定儀</span></a></strong></span>重鉻酸鉀快速消解原理我公司專為監(jiān)測、監(jiān)理人員用于現(xiàn)場測定各種水樣化學(xué)需氧量的儀器。本儀器具有自動PID控溫、雙液晶顯示、交直流兩用、自動調(diào)零、濃度直讀、曲線存儲、自動打印等特點(diǎn)，儀器操作簡便，人機(jī)交互式操作，使用者無需復(fù)雜的專業(yè)知識即可應(yīng)用本產(chǎn)品。</span></div><div><span style="font-size: 16px;"><br /></span></div><div><span style="font-size: 16px;"> 景弘</span><strong style="font-size: 16px;">便攜式COD測定儀</strong><span style="font-size: 16px;">重鉻酸鉀快速消解原理工作原理：</span></div><div><span style="font-size: 16px;"><br /></span></div><div><span style="font-size: 16px;"> 試樣中加入已知量的重鉻酸鉀溶液，在強(qiáng)硫酸介質(zhì)中，以硫酸銀作為催化劑，經(jīng)高溫消解后，用分光光度法測定COD值。當(dāng)試樣中COD值為100mg/L至1000mg/L，測定重鉻酸鉀被還原產(chǎn)生的三價鉻（Cr3+）的吸光度，試樣中COD值與三價鉻（Cr3+）的吸光度的增加值成正比例關(guān)系，將三價鉻（Cr3+）的吸光度換算成試樣的COD值。當(dāng)試樣中COD值為5mg/L至150mg/L，測定重鉻酸鉀未被還原的六價鉻（Cr6+）和被還原產(chǎn)生的三價鉻（Cr3+）的兩種鉻離子的總吸光度；試樣中COD值與六價鉻（Cr6+）的吸光度減少值成正比例，與三價鉻（Cr3+）的吸光度增加值成正比例，與總吸光度減少值成正比例，將總吸光度值換算成試樣的COD值。</span></div><div><span style="font-size: 16px;"><br /></span></div><div><span style="font-size: 16px;"> 景弘</span><strong style="font-size: 16px;">便攜式COD測定儀</strong><span style="font-size: 16px;">的優(yōu)勢：</span></div><div><span style="font-size: 16px;"><br /></span></div><div><span style="font-size: 16px;"> 大屏幕液晶背光顯示，240*128點(diǎn)陣，中文操作界面，人性化程序設(shè)計；</span></div><div><span style="font-size: 16px;"><br /></span></div><div><span style="font-size: 16px;"> 測量范圍寬，并可據(jù)水樣實際情況進(jìn)行量程切換；</span></div><div><span style="font-size: 16px;"><br /></span></div><div><span style="font-size: 16px;"> 消解系統(tǒng)自動恒溫控制,PID調(diào)節(jié)技術(shù)，消解過程溫度恒定、精度高；</span></div><div><span style="font-size: 16px;"><br /></span></div><div><span style="font-size: 16px;"> 2點(diǎn)至7點(diǎn)校正模式，自動計算斜率、截距及相關(guān)系數(shù)，測量精度高；</span></div><div><span style="font-size: 16px;"><br /></span></div><div><span style="font-size: 16px;"> 故障自診斷智能設(shè)計，使儀器管理和維護(hù)簡易方便；</span></div><div><span style="font-size: 16px;"><br /></span></div><div><span style="font-size: 16px;"> 儀器內(nèi)置實時時鐘，每條測量記錄都帶有測量時間戳，方便統(tǒng)計與查詢；</span></div><div><span style="font-size: 16px;"><br /></span></div><div><span style="font-size: 16px;"> 大容量數(shù)據(jù)存儲，斷電保護(hù)設(shè)計，確保儀器不受損壞和數(shù)據(jù)記錄*丟失；</span></div><div><span style="font-size: 16px;"><br /></span></div><div><span style="font-size: 16px;"> 抗干擾能力強(qiáng)，適用于工業(yè)現(xiàn)場，可廣泛應(yīng)用于地表水和污染源的監(jiān)控；</span></div><div><span style="font-size: 16px;"><br /></span></div><div><span style="font-size: 16px;"> 儀器采用半導(dǎo)體冷光源發(fā)光器，*的光學(xué)電路設(shè)計，測量數(shù)據(jù)精度高、穩(wěn)定性好，光源壽命可達(dá)幾萬小時；</span></div><div><span style="font-size: 16px;"><br /></span></div><div><span style="font-size: 16px;"> 具有數(shù)據(jù)輸出接口，可連接電腦，將測量數(shù)據(jù)傳輸至電腦；</span></div><div><span style="font-size: 16px;"><br /></span></div><div><span style="font-size: 16px;"> 儀器自帶或可選配打印機(jī)（根據(jù)具體型號），可直接打印測量數(shù)據(jù)和歷史數(shù)據(jù)；</span></div><div><span style="font-size: 16px;"><br /></span></div><div><span style="font-size: 16px;"> 儀器整機(jī)設(shè)計美觀，方便攜帶與使用；</span></div><div><span style="font-size: 16px;"><br /></span></div><div><span style="font-size: 16px;"> 試劑用量少，運(yùn)行成本低，抗干擾能力強(qiáng)。</span></div> </div> <ul class="news_page"> <li><span>(上一篇)</span>：<a href="/Article-2377704.html">有關(guān)于全自動紅外分光測油儀的十問十答</a></li><li><span>(下一篇)</span>：<a 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