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JH-850無汞BOD自動測定儀bod快速檢測儀原理 </p> <big>產(chǎn)品中心</big> </div> <div id="gljo9fygc" class="clear"></div> <dl class="product_article"> <dt> <div id="gljo9fygc" class="proimg_bk1"><a class="proimg1"><img src="http://img48.chem17.com/gxhpic_d55d0c909a/88c648add642a1ec525e678f89af67007e96c6a8d2a3938f284659315c3919c818760f5228285357.jpg"/></a></div> </dt> <dd deep="3"> <div class="gljo9fygc" id="prod_gs" class="prod_gs"> <div id="gljo9fygc" class="prod_view_name"> <strong class="prod_view_name_bt">產(chǎn)品名稱：</strong> <b><h1 style="font-size: inherit"><span id="ShoveWebControl_Text3">無汞BOD自動測定儀bod快速檢測儀原理</span></h1></b> </div> <div class="gljo9fygc" id="xn_c_prodv_26_wrap" class="xn_c_prodv_26_wrap"> <div id="gljo9fygc" class="xn_c_prodv_26_name" style="line-height: 36px;"> <span id="gljo9fygc" class="xn_c_prodv_26_namewz"><span name="_prodv_26_namewz">產(chǎn)品型號：</span></span> <span id="gljo9fygc" class="xn_c_prodv_26_namemc"><span id="xn_c_prodv_26_Text1">JH-850</span></span> </div> <div id="gljo9fygc" class="xn_c_prodv_26_name" style="line-height: 36px;"> <span id="gljo9fygc" class="xn_c_prodv_26_namewz"><span name="_prodv_26_namewz">產(chǎn)品時間：</span></span> <span id="gljo9fygc" class="xn_c_prodv_26_namemc"><span id="xn_c_prodv_26_Text1">2024-07-14</span></span> </div> </div> <div class="gljo9fygc" id="prod_view_ms" class="prod_view_ms"><span id="ShoveWebControl_Text7">無汞BOD自動測定儀bod快速檢測儀原理：</br> JH-850型BOD5測定儀是利用空氣壓差法進(jìn)行生化需氧量測定的一種新型儀器，能準(zhǔn)確提供與化學(xué)稀釋法可比的測定結(jié)果，具有讀數(shù)直觀，生化反應(yīng)曲線一目了然和使用維護(hù)方便等特點(diǎn)，是工作分析的理想工具?？蓮V泛應(yīng)用于環(huán)保監(jiān)測、石油化工、醫(yī)療衛(wèi)生、教學(xué)科研等部門對水質(zhì)的監(jiān)測。</span></div> </div> <p></p> </dd> </dl> <div id="gljo9fygc" class="main_top3"><p>產(chǎn)品介紹</p></div> <div id="gljo9fygc" class="product1 pro_1"> <p><span style="font-size:16px"><span style="font-family:黑體"><strong>無汞BOD自動測定儀bod快速檢測儀原理</strong>產(chǎn)品概述：</span></span></p><p style="text-align:justify"><span style="font-size:16px"><span style="font-family:黑體"><span style="color:rgb(0, 0, 0)"><span style="color:rgb(51, 51, 51)">JH-850微電腦數(shù)顯式BOD測定儀是利用空氣壓差法進(jìn)行生化需氧量測定的一種儀器，能提供與化學(xué)稀釋法可比的測定結(jié)果，具有讀數(shù)直觀，生化反應(yīng)曲線一目了然和使用維護(hù)方便等特點(diǎn)，可應(yīng)用于環(huán)保監(jiān)測、石油化工、醫(yī)療衛(wèi)生、教學(xué)科研等部門對水質(zhì)的監(jiān)測。</span></span></span></span></p><p style="text-align:justify"><span style="font-family:黑體; font-size:16px; line-height:1.6em">（一）本儀器的安裝環(huán)境條件：</span></p><p><span style="font-size:16px"><span style="font-family:黑體">1、環(huán)境溫度：0℃～40℃。</span></span></p><p><span style="font-size:16px"><span style="font-family:黑體">2、相對濕度：≤80％</span></span></p><p><span style="font-size:16px"><span style="font-family:黑體">3、周圍環(huán)境無強(qiáng)烈振動和強(qiáng)電磁場影響。</span></span></p><p><span style="font-size:16px"><span style="font-family:黑體">4、儀器應(yīng)避免強(qiáng)光直接照射。</span></span></p><p><img alt="" src="https://img70.chem17.com/gxhpic_d55d0c909a/4448be7ada874d048cf21f4421207710b1880dc082988fd3c6b5fa3f6fd70dca3483b6c361c7558a.jpg" style="font-family:黑體; font-size:16px; line-height:1.6em" /></p><p><strong><span style="font-size:10.5pt"><span style="font-family:宋體"> <span style="font-size:16px"><span style="font-family:黑體">稀釋</span></span></span></span></strong></p><p><span style="font-size:16px"><span style="font-family:黑體">如果超過儀器測定范圍，可用稀釋水稀釋樣品。所加入的稀釋水也應(yīng)保持為20℃，并曝氣使氧達(dá)到飽和，如需要若干份相同的樣品試驗(yàn)時，應(yīng)稀釋足夠量的原水樣，并從稀釋樣中取出與量程對應(yīng)的體積。例如，當(dāng)試驗(yàn)原水樣稀釋兩倍時，稀釋倍數(shù)為2；當(dāng)原水樣和接種稀釋水比例是1∶9時，則稀釋倍數(shù)為10。再根據(jù)（3.6）章節(jié)的計(jì)算方式得出水樣的BOD值。</span></span></p><p> </p><p><span style="font-size:16px"><span style="font-family:黑體"><strong>接種液的獲得</strong></span></span></p><p><span style="font-size:16px"><span style="font-family:黑體">（1）城市污水，一般采用新鮮的城市污水，在室溫下放置一晝夜，取上清液使用。</span></span></p><p><span style="font-size:16px"><span style="font-family:黑體">（2）表層土壤浸出液，取花園土或植物生長土壤，加入1L水，混合并靜置10分鐘，取上清液使用。</span></span></p><p><span style="font-size:16px"><span style="font-family:黑體">（3）用含城市污水的河流或湖泊。</span></span></p><p><span style="font-size:16px"><span style="font-family:黑體">（4）污水處理廠的進(jìn)水。</span></span></p><p><span style="font-size:16px"><span style="font-family:黑體">（5）用上次做BOD實(shí)驗(yàn)的廢液，用濾紙過濾，靜置后使用。</span></span></p><p><span style="font-size:16px"><span style="font-family:黑體">（6）購買BOD菌種，按說明書使用。</span></span></p><p><span style="font-size:16px"><span style="font-family:黑體"><span style="line-height:1.6em"> </span><strong style="line-height:1.6em">除氯</strong></span></span></p><p><span style="font-size:16px"><span style="font-family:黑體">讓樣品穩(wěn)定1～2小時，可以消除掉樣品中，如果樣品含有高濃度的可加入配制好的亞硫酸鈉溶液除去。其加入量的計(jì)算方法是：取中和好的水樣100mL，加入1＋1 乙酸10mL、100mg/L碘化鉀溶液1mL，混勻。以淀粉溶液為指示劑，用亞硫酸鈉溶液滴定游離碘。根據(jù)亞硫酸鈉溶液消耗的體積，計(jì)算水樣中所需加亞硫酸鈉溶液的量。例如100ml水樣消耗0.5ml亞硫酸鈉溶液，那么1L水樣所需亞硫酸鈉溶液的量為5ml。如果加入亞硫酸溶液的量過多而影響水樣測定，可適當(dāng)增加亞硫酸鈉溶液的濃度，以減少加入溶液的體積。</span></span></p><p><img alt="" src="https://img71.chem17.com/gxhpic_d55d0c909a/4448be7ada874d048cf21f44212077100551df675cbb4b912b5b593a20c164df4375aec257b5c240.jpg" style="font-family:黑體; font-size:16px; height:750px; line-height:1.6em; width:1000px" /></p><p><span style="font-size:16px"><span style="font-family:黑體"><strong>無汞BOD自動測定儀bod快速檢測儀原理</strong>技術(shù)參數(shù)：</span></span></p><p><span style="font-size:16px"><span style="font-family:黑體">1、測量范圍：0～1000 mg/L（BOD5值超過測量范圍時需要稀釋）<br />2、同時測定樣品數(shù)：每次6份樣品<br />3、準(zhǔn)確度：符合國標(biāo)“GB7488-87”規(guī)定<br />（葡萄糖谷氨酸標(biāo)準(zhǔn)溶液BOD5值在180 mg/L～230 mg/L范圍內(nèi)）<br />4、顯示：LCD顯示器循環(huán)顯示各樣品的BOD5值及生化反應(yīng)曲線。<br />5、培養(yǎng)溫度：20℃±1℃<br />6、電源：AC 220V±22V 50Hz±0.5Hz<br />7、功耗：儀器≤30Ｗ，恒溫箱≤300Ｗ<br />8 、儀器能保存上次分析的六個樣品的BOD5值及生化反應(yīng)曲線</span></span></p><p><span style="font-size:16px"><span style="font-family:黑體"><img alt="" src="https://img71.chem17.com/gxhpic_d55d0c909a/4448be7ada874d048cf21f44212077101b6de681e66058a9584085683930052b063a6fac9d5f1144.jpg" style="height:750px; width:1000px" /></span></span></p><p><span style="font-size:16px"><span style="font-family:黑體"><img alt="" src="https://img48.chem17.com/gxhpic_d55d0c909a/87ca85b88f793ad355cd05d50927ea2eca247755ab0f1f8c8b8aa12499a39d41e57a4213a72878f0.jpg" style="height:513px; width:790px" /></span></span></p><p><span style="font-size:16px"><span style="font-family:黑體">1、以上所述產(chǎn)品規(guī)格、圖片、資訊等僅供參考,如有更新, 請以實(shí)機(jī)為準(zhǔn)，恕不另行通知。</span></span></p><p><span style="font-size:16px"><span style="font-family:黑體"> </span></span></p><p><span style="font-size:16px"><span style="font-family:黑體">2、如果您的需求與其有所偏離,請致電</span></span></p><p><span style="font-size:16px"><span style="font-family:黑體"> </span></span></p> </div> <link 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