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style="font-family:微軟雅黑"><strong>CHMN-110實驗室水質錳測定儀</strong></span></span></p><p> </p><p><span style="font-size:14px"><span style="font-family:微軟雅黑">錳（Mn）有鋼鐵樣的金屬光澤。錳的化合物有多種價態(tài)，主要有二價、三價、四價、六價和七價。錳是生物必需的微量元素之一。地下水中由于缺氧，錳以可溶態(tài) 的二價錳形式存在，而在地表水中還有可溶性三價錳的絡合物和四價錳的懸浮物存在。在環(huán)境水樣中錳的含量在數(shù)微克/升至數(shù)百微克/升，很少有超過1mg/L的。錳鹽毒性不大，但水中錳可使衣物、紡織品和紙留下難看的斑痕，因此一般工業(yè)用水錳含量不允許超過0.1 mg/L。</span></span></p><p><span style="font-size:14px"><span style="font-family:微軟雅黑">錳的主要污染源是黑色金屬礦山、冶金、化工排放的廢水。</span></span></p><p> </p><p><span style="font-size:14px"><span style="font-family:微軟雅黑">分析方法的選擇</span></span></p><p><span style="font-size:14px"><span style="font-family:微軟雅黑"> （1）原子吸收法靈敏度高，可直接用于水中錳的測定。</span></span></p><p><span style="font-size:14px"><span style="font-family:微軟雅黑">（2）測量高錳酸鹽的紫紅色的光度法選擇性較好，經(jīng)常被采用。</span></span></p><p><span style="font-size:14px"><span style="font-family:微軟雅黑">（3）甲醛肟光度法為ISO的標準方法，靈敏度比高錳酸鹽法高。</span></span></p><p> </p><p><span style="font-size:14px"><span style="font-family:微軟雅黑"><strong>CHMN-110實驗室水質錳測定儀</strong>產(chǎn)品工作原理：</span></span></p><p><span style="font-size:14px"><span style="font-family:微軟雅黑"><span style="color:rgb(63, 63, 63)">用單色冷光源，利用微電腦自動處理數(shù)據(jù)，直接顯示水樣的錳濃度值。廣泛適用于飲用水、地表水、地面水、污水和工業(yè)廢水的測定。</span></span></span></p><p> </p><p><span style="font-size:14px"><span style="font-family:微軟雅黑"><strong></strong>產(chǎn)品優(yōu)勢：</span></span></p><p><span style="font-size:14px"><span style="font-family:微軟雅黑"><span style="color:rgb(63, 63, 63)">配以高穩(wěn)定性光學系統(tǒng) </span></span></span></p><p><span style="font-size:14px"><span style="font-family:微軟雅黑"><span style="color:rgb(63, 63, 63)">用進口高性能、長壽命、高亮度光源 </span></span></span></p><p><span style="font-size:14px"><span style="font-family:微軟雅黑"><span style="color:rgb(63, 63, 63)">儀器穩(wěn)定性、重復性好，精度高</span></span></span></p><p><span style="font-size:14px"><span style="font-family:微軟雅黑">大屏幕LCD中文顯示，中文菜單操作，簡便、直觀。</span></span></p><p><span style="font-size:14px"><span style="font-family:微軟雅黑">測量數(shù)據(jù)可*保存，工作曲線除出廠標定曲線外，還留有用戶自行標定曲線。</span></span></p><p><span style="font-size:14px"><span style="font-family:微軟雅黑">利用進口光源，配以窄帶濾光系統(tǒng)，光學穩(wěn)定性*，因而儀器精度高、穩(wěn)定性好。</span></span></p><p> </p><p><span style="font-size:14px"><span style="font-family:微軟雅黑"><strong></strong>技術參數(shù)：</span></span></p><p><span style="font-size:14px"><span style="font-family:微軟雅黑"><span style="color:rgb(63, 63, 63)">測量范圍：0.02～5.00mg/L</span></span></span></p><p><span style="font-size:14px"><span style="font-family:微軟雅黑"><span style="color:rgb(63, 63, 63)">重復性：≤3%</span></span></span></p><p><span style="font-size:14px"><span style="font-family:微軟雅黑"><span style="color:rgb(63, 63, 63)">示值誤差：≤±5%</span></span></span></p><p><span style="font-size:14px"><span style="font-family:微軟雅黑"><span style="color:rgb(63, 63, 63)">光學穩(wěn)定性：儀器吸光值在20min內漂移小于0.002A</span></span></span></p><p><span style="font-size:14px"><span style="font-family:微軟雅黑"><span style="color:rgb(63, 63, 63)">外形尺寸：主機 266mm×200mm×130mm</span></span></span></p><p><span style="font-size:14px"><span style="font-family:微軟雅黑"><span style="color:rgb(63, 63, 63)">重量：小于 1kg</span></span></span></p><p><span style="font-size:14px"><span style="font-family:微軟雅黑"><span style="color:rgb(63, 63, 63)">正常使用條件：</span></span></span></p><p><span style="font-size:14px"><span style="font-family:微軟雅黑"><span style="color:rgb(63, 63, 63)">⑴ 環(huán)境溫度：5～40℃ </span></span></span></p><p><span style="font-size:14px"><span style="font-family:微軟雅黑"><span style="color:rgb(63, 63, 63)">⑵ 相對濕度：≤85%</span></span></span></p><p><span style="font-size:14px"><span style="font-family:微軟雅黑"><span style="color:rgb(63, 63, 63)">⑶ 供電電源：AC(220±22)V；（50±0.5）Hz</span></span></span></p><p><span style="font-size:14px"><span style="font-family:微軟雅黑"><span style="color:rgb(63, 63, 63)">⑷ 無顯著的振動及電磁干擾，避免陽光直射。</span></span></span></p> </div> <p> </p> <div class="fhpd5pt" id="clear" ></div> <div> 上一篇 : <a 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