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class="inside_rnewcon"> <div>　　<strong><a href="http://www.renoscrapbooking.com/Products-18294355.html" target="_blank">在線臭氧分析儀</a></strong>采用2.4寸高清彩屏實時顯示濃度，先進的電路設計、成熟的內核算法處理，可以檢測管道中或受限空間、大氣環境中的氣體濃度，可以檢測氣體泄漏或各種背景氣體為氮氣或氧氣的高濃度單一氣體純度，檢測氣體種類超過1000種。用于便攜式快速檢測多種氣體濃度、溫濕度測量并超標報警的場合。廣泛應用于化工、石油、醫藥、環保煙氣分析、管道、鍋爐氣體分析，空氣治理等所有需要檢測氣體濃度的場合<br /> </div><div>　　原理：臭氧層可以吸收紫外線。研究表明，臭氧對特定波長的紫外線只有很大的吸收系數。在這個波長下，臭氧通過紫外線會產生衰減。儀器是基于紫外吸收法的原理，利用穩定的紫外光源產生紫外光，利用濾光片濾出其他波長的紫外光，只允許特定波長通過。樣品光電傳感器經過臭氧吸收槽后，對光電傳感器進行采樣。通過比較樣品光電傳感器的電信號和樣品光電傳感器的電信號以及通過計算數學模型可以獲得臭氧濃度。<br /> </div><div>　　在線臭氧分析儀的檢測方法：<br /> </div><div>　　化學檢測法：<br /> </div><div>　　1、碘量法：碘量法是常用的臭氧測定方法，我國和許多國家均把此法作為測定氣體臭氧的標準方法，我國建設部發布的《臭氧發生器臭氧濃度、產量、電耗的測量》標準CJ/T30282—94中即規定使用碘量法。其原理為強氧化劑臭氧與碘化鉀水溶液反應生成游離碘，臭氧還原為氧氣。<br /> </div><div>　　2、比色法：比色法是根據臭氧與不同化學試劑的顯色或脫色反應程度來確定臭氧濃度的方法，按比色手段分為人工色樣比色與光度計色，此法多用于檢測水溶解臭氧濃度。<br /> </div><div>　　國內檢測瓶裝水臭氧溶解濃度有使用碘化鉀等比色液的，其方式是利用檢測樣品顯色液管相比較，確定測樣臭氧溶解度值，要求準確的，則利用分光光度計檢測。<br /> </div><div>　　3、檢測管：將臭氧氧化可變化試劑浸漬在載體上，作為反應劑封裝在標準內徑的玻璃管內做成測管，使用時將檢測管兩端切斷，把抽氣器接到檢測管出氣端吸取定量臭氧氣體，臭氧濃度與檢測管內反應劑柱變色長度成正比，通過刻度值讀取濃度值。德國、日本和我國都生產臭氧檢測管，濃度范圍分為高(1000ppm)、中(10ppm)、低(3ppm)三種，用于檢測空氣臭氧濃度，適于現場應用，使用簡便，但精度低(為±15%)。<br /> </div><div>　　物理方法：<br /> </div><div>　　物理方法分析臭氧在上流行的是紫外線吸收法。它是利用臭氧對254nm波長的紫外線特征吸收的特性，依據比爾—郎伯定律制造出的分析儀器，只要選擇合適長度的吸收池，就可以檢測0.002mg/m3—5%(vol)濃度的臭氧。其線形在4—5個數量級內都很好，該法已被我國作為環境空氣中測定臭氧的標準方(GB1/T1154348)。<br /> </div><div>　　紫外線吸收法不但可以適用于檢測氣體中臭氧濃度，也可以檢測水中溶存的臭氧濃度。</div> </div> <div class="inside_newsthree"> <p id="newsprev">上一篇：<b class="newsprev"><a href="/Article-846371.html">衡量小型河涌水質自動監測站布局是否合理的標準是什么</a></b></p> <p id="newsnext">下一篇：<b class="newsnext"><a href="/Article-829497.html">關于在線硬度分析儀大家還想了解什么</a></b></p> <span><a href="/article.html">返回列表>></a></span> </div> </div> </div> </div> </div>   <div class="footer clearfix"> <div class="footer_wrapper clearfix"> <div class="footer_cen fl"> <span style="font-size:14px; color:#fff;">工作時間</span><br/> 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