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class="proimg_bk1"><a class="proimg1"><img src="http://img47.chem17.com/gxhpic_d55d0c909a/f34697d735b517a634ee7e0952d7cfb21208f348d1ab1f0d60c343627f1075462eab9a6df25547b5.png"/></a></div> </dt> <dd deep="3"> <div class="ydmkz1acle" id="prod_gs" class="prod_gs"> <div id="ydmkz1acle" 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">手提式水質(zhì)快速檢測儀水質(zhì)參數(shù)</span></h1></b> </div> <div class="ydmkz1acle" id="xn_c_prodv_26_wrap" class="xn_c_prodv_26_wrap"> <div id="ydmkz1acle" class="xn_c_prodv_26_name" style="line-height: 36px;"> <span id="ydmkz1acle" class="xn_c_prodv_26_namewz"><span name="_prodv_26_namewz">產(chǎn)品型號：</span></span> <span id="ydmkz1acle" class="xn_c_prodv_26_namemc"><span id="xn_c_prodv_26_Text1">JH-TDW2000型</span></span> </div> <div id="ydmkz1acle" class="xn_c_prodv_26_name" style="line-height: 36px;"> <span id="ydmkz1acle" class="xn_c_prodv_26_namewz"><span name="_prodv_26_namewz">產(chǎn)品時(shí)間：</span></span> <span id="ydmkz1acle" class="xn_c_prodv_26_namemc"><span id="xn_c_prodv_26_Text1">2024-07-13</span></span> </div> </div> <div class="ydmkz1acle" id="prod_view_ms" class="prod_view_ms"><span id="ShoveWebControl_Text7">手提式水質(zhì)快速檢測儀水質(zhì)參數(shù)：</br>該儀器可以根據(jù)用戶需要進(jìn)行重金屬及無機(jī)鹽（包括余氯、總氯、二氧化氯、濁度、色度、銅、六價(jià)鉻、錳、鐵、鋅、鋁、磷酸鹽、硫酸鹽、亞硝酸鹽、硝酸鹽、氨氮、、硬度等）等參數(shù)自由的組合。廣泛適用于飲用水、地表水、地面水的測定。</span></div> </div> <p></p> </dd> </dl> <div id="ydmkz1acle" class="main_top3"><p>產(chǎn)品介紹</p></div> <div id="ydmkz1acle" class="product1 pro_1"> <p><span style="font-size:16px"><span style="font-family:黑體"><strong>手提式水質(zhì)快速檢測儀水質(zhì)參數(shù)</strong>技術(shù)參數(shù)：</span></span></p><p style="text-align:justify"><span style="font-size:16px"><span style="font-family:黑體">1重復(fù)性：≤3%</span></span></p><p style="text-align:justify"><span style="font-size:16px"><span style="font-family:黑體">2 光學(xué)穩(wěn)定性：儀器吸光值在20min內(nèi)漂移小于0.002A</span></span></p><p style="text-align:justify"><span style="font-size:16px"><span style="font-family:黑體">3 讀數(shù)模式：濃度、吸光度、透光率</span></span></p><p style="text-align:justify"><span style="font-size:16px"><span style="font-family:黑體">4 外形尺寸： 410mm×300mm×130mm</span></span></p><p style="text-align:justify"><span style="font-size:16px"><span style="font-family:黑體">5 重量： 4kg </span></span></p><p><span style="font-size:16px"><span style="font-family:黑體"> <img src="http://pmo81920b.pic35.websiteonline.cn/upload/48il.png" /></span></span></p><p style="text-align:justify"><span style="font-size:16px"><span style="font-family:黑體"><strong>手提式水質(zhì)快速檢測儀水質(zhì)參數(shù)</strong><span style="line-height:1.6em">產(chǎn)品介紹：</span></span></span></p><p><span style="font-size:16px"><span style="font-family:黑體"><strong style="line-height:1.2em">水樣的干擾及消除</strong></span></span></p><p><span style="font-size:16px"><span style="font-family:黑體">① 氯離子是主要的干擾成分，水樣中含有氯離子會使測定結(jié)果偏高，出廠標(biāo)配的C1試劑可以掩蔽1000mg/L以下的氯離子干擾，大于1000mg/L的氯離子含量，可稀釋后再測定；</span></span></p><p><span style="font-size:16px"><span style="font-family:黑體">② 在測試時(shí)，Mn(Ⅲ)、Mn（Ⅵ）或Mn（Ⅶ）形成紅色物質(zhì)，會引起正偏差，其500mg/L 的錳溶液（硫酸鹽形式）引起正偏差COD 值為1083mg/L，其 50mg/L的錳溶液（硫酸鹽形式）引起正偏差COD 值為121mg/L；</span></span></p><p><span style="font-size:16px"><span style="font-family:黑體">③ 在酸性重鉻酸鉀條件下，一些芳香烴類有機(jī)物、吡啶等化合物難以氧化，其氧化率較低。</span></span></p><p><span style="font-size:16px"><span style="font-family:黑體">④ 試樣中的有機(jī)氮通常轉(zhuǎn)化成銨離子,銨離子不被重鉻酸鉀氧化。</span></span></p><p><span style="font-size:16px"><span style="font-family:黑體">⑤ 為了得到好的結(jié)果，對于氯離子濃度很高而COD濃度較小的樣品，請使用低量程測定。</span></span></p><p style="text-align:justify"><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"><strong>注意事項(xiàng)：</strong></span></span></p><p style="margin-left:21pt"><span style="font-size:16px"><span style="font-family:黑體">① 請使用分析純或以上級的硫酸(ρ（H<sub>2</sub>SO<sub>4</sub>）=1.84g/mL)，性狀為無色透明液體。因硫酸具有吸水性，試劑配置完成后應(yīng)立刻密封存儲，切勿長時(shí)間暴露于空氣中。</span></span></p><p style="margin-left:21pt"><span style="font-size:16px"><span style="font-family:黑體">② 整瓶試劑只能一次性配制，禁止將整瓶試劑分開配制或稱量后分批次配制。</span></span></p><p style="margin-left:21pt"><span style="font-size:16px"><span style="font-family:黑體">③ 試劑配置過程必須由化學(xué)專業(yè)人員進(jìn)行操作，避免使用和操作事故發(fā)生。</span></span></p><p style="margin-left:21pt"><span style="font-size:16px"><span style="font-family:黑體">④ 試劑開封后禁止長時(shí)間放置，應(yīng)盡快使用。</span></span></p><p style="margin-left:21pt"><span style="font-size:16px"><span style="font-family:黑體">⑤ 試劑要按照儲藏要求存放，禁止將不同批次試劑混合使用。</span></span></p><p style="text-align:justify"><span style="font-size:16px"><span style="font-family:黑體"> <img src="http://pmo81920b.pic35.websiteonline.cn/upload/rbiz.jpg" /></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"><strong><span style="color:#000000">配制標(biāo)準(zhǔn)溶液</span></strong></span></span></p><p><span style="font-size:16px"><span style="font-family:黑體"><span style="color:#000000">標(biāo)準(zhǔn)溶液也稱為標(biāo)準(zhǔn)物質(zhì)，是模擬天然淡水成份基體，采用特殊工藝，在規(guī)定的環(huán)境中精確配制而成。其總氮的濃度是已知的。用戶可通過購買或按照要求自行配制得到。標(biāo)準(zhǔn)溶液主要有以下幾個(gè)用途：</span></span></span></p><p><span style="font-size:16px"><span style="font-family:黑體"><span style="color:#000000">① 對總氮測定儀的曲線進(jìn)行校準(zhǔn)；</span></span></span></p><p><span style="font-size:16px"><span style="font-family:黑體"><span style="color:#000000">② 對總氮測定的準(zhǔn)確度進(jìn)行檢驗(yàn)；</span></span></span></p><p><span style="font-size:16px"><span style="font-family:黑體"><span style="color:#000000">③ 對操作人員的分析過程進(jìn)行確認(rèn)與評價(jià)；</span></span></span></p><p><span style="font-size:16px"><span style="font-family:黑體"><span style="color:#000000">④ 對儀器的整個(gè)測量過程進(jìn)行質(zhì)量控制。</span></span></span></p><p><span style="font-size:16px"><span style="font-family:黑體"><span style="color:#000000">（1）.標(biāo)準(zhǔn)溶液（儲備液）配制方法：</span></span></span></p><p><span style="font-size:16px"><span style="font-family:黑體"><span style="color:#000000">稱取預(yù)先在 l05～110℃烘干4小時(shí)并冷卻后的硝酸鉀(KNO</span><sub><span style="color:#000000">3</span></sub><span style="color:#000000">)0.7218g全部溶于無氨水，轉(zhuǎn)移至1000mL容量瓶中，用水稀釋至標(biāo)線，搖勻，該溶液的總氮值為100mg/L。加入2ml三氯甲烷</span>（CHCl<sub>3</sub>）<span style="color:#000000">為保護(hù)劑，至少可穩(wěn)定6個(gè)月。</span></span></span></p><p><span style="font-size:16px"><span style="font-family:黑體"><span style="color:#000000">（2）.標(biāo)準(zhǔn)使用液配制方法：吸取上述標(biāo)準(zhǔn)儲備溶液20ml于100ml的容量瓶內(nèi)，用無氨水稀釋至標(biāo)線，混勻，此溶液總氮濃度為20mg/L，隨時(shí)使用隨時(shí)配制</span></span></span></p><p><span style="font-size:16px"><span style="font-family:黑體"> <img src="http://pmo81920b.pic35.websiteonline.cn/upload/37mh.jpg" /></span></span></p><p style="text-align:justify"><span style="font-size:16px"><span style="font-family:黑體"><img alt="" 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