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<strong>實驗室ph計</strong>內(nèi)置智能型單芯片，可以任意采用一點、二點或三點自動校正，如果測量精度≤0.1pH，只要使用pH6.86緩沖溶液進行一點校正就可以了。如果測量范圍僅在酸性范圍（pH<7.00）或僅在堿性范圍（pH>7.00），也可以采用二點校正，除pH6.86定位校正外，再選擇pH4.00或pH9.18作第二點校正。如果測量范圍比較寬，或pH電極使用時間較長，有老化時，應選擇三點校正，將使測量精度更高。<br /> <strong> 實驗室ph計</strong>配有攪拌式電極架，校正或測量時將pH電極和溫度電極裝在電極架上，下移電極夾使電極頭浸入溶液中，打開電源使攪拌器攪拌十幾秒鐘，然后停止攪拌讀數(shù)，將使測試更加方便。對有些添加其他試劑的溶液，攪拌會使溶液迅速達到均勻或反應*。對有些離子強度很低的溶液，如純水或有機溶液的測試，粘稠性或懸濁性溶液的測試，攪拌會有更好的效果。但讀數(shù)時應停止攪拌，因為電磁攪拌有時會對電極產(chǎn)生感應干擾。<br /> 如果使用帶ATC的三復合pH復合電極，則使用一支電極就可以進行自動溫度補償?shù)膒H測試。如果要進行手動溫度補償只要拔下溫度電極，按增加鍵或減少鍵。</p> </div> <div id="aqgwbbhhdpu" class="ly_PrevNext"> <ul> <li>上一篇：<a href="/jsshengaohua-News-531540/">鄉(xiāng)鎮(zhèn)污水處理應善用PPP模式</a></li> <li>下一篇：<a href="/jsshengaohua-News-508669/">COD智能消解器和COD智能測定儀作用與功能的不同</a></li> </ul> </div> </div>   <div id="aqgwbbhhdpu" class="foot_box"> <div id="aqgwbbhhdpu" class="footCon"> <div id="aqgwbbhhdpu" class="foot_t w1300"> <div id="aqgwbbhhdpu" class="foot_lv"> <div id="aqgwbbhhdpu" class="foot_logo"><img 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