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</p><div>　　使用小技巧：</div><div>　　1、必須預(yù)先將試劑按順序加入，混勻后再加入空白或待測水樣，否則不能正常顯色。</div><div>　　2、水樣最好加入后立即比色，防止褪色。</div><div>　　3、高濃度水樣不要劇烈震蕩，防止游離氯溢出。</div><div>　　4、比色完成后的溶液，不能隨意傾倒，應(yīng)統(tǒng)一收集，并進(jìn)行集中處理。</div><div> </div><div>　　使用方法：</div><div>　　1、開機(jī)，機(jī)器預(yù)熱2分鐘。</div><div>　　2、將待測液倒入比色皿1，容量到三分之二的容積。放入過程要求水漬不能到比色皿外部。將此比色皿1放入測量池；按校正鍵，使儀器顯示0.00mg/L。</div><div>　　3、將待測液取100ML，加入緩沖試劑15ML，加入DPD試劑5ML，按確認(rèn)鍵；此時儀器屏幕顯示從60逐數(shù)遞減，最后到0；此時將加入試劑的待測液倒入比色皿2；將比色皿2放入測量池，顯示度數(shù)即為余氯含量。</div><div>　　4、按存儲鍵、提取鍵分別能存儲提取20個實(shí)驗記錄。</div><div> </div><div>　　余氯測定儀操作注意事項：</div><div>　　1、氯離子不是余氯的測量范疇。余氯測量包含的是游離氯和化合氯含量的測量。</div><div>　　2、游離氯測定必須在pH為6.2---6.5的情況下，加入DPD試劑直接反應(yīng)，生成紅色化合物。如果pH值不在范圍請用緩沖試劑或稀酸或稀堿進(jìn)行調(diào)節(jié)。</div><div>　　3、總氯測定的方法原理：在pH為6.2----6.5的情況下，加入過量碘化鉀，加入DPD直接反應(yīng)，生成紅色化合物。如果pH值不在范圍請用緩沖試劑或稀酸或稀堿進(jìn)行調(diào)節(jié)。</div><div>　　4、對于渾濁的試樣必須過濾后方能測量。</div><div>　　5、對于帶色彩的試樣不能進(jìn)行測量。</div><div>　　6、比色皿每次使用后都要清潔處理，干燥保存。</div> </div> <div id="3tzm5vv4jmr" class="ly_PrevNext"> 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