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src="http://img48.chem17.com/gxhpic_d55d0c909a/5d3f81e4a4eb260b6afb3859be8784300808ccdad8e934a980fe349818595377b02a75360b97179e.jpg"/></a></div> </dt> <dd deep="3"> <div class="znfrt0j" id="prod_gs" class="prod_gs"> <div id="znfrt0j" 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">氨氮測定儀產(chǎn)品國標法測氨氮</span></h1></b> </div> <div class="znfrt0j" id="xn_c_prodv_26_wrap" class="xn_c_prodv_26_wrap"> <div id="znfrt0j" class="xn_c_prodv_26_name" style="line-height: 36px;"> <span id="znfrt0j" class="xn_c_prodv_26_namewz"><span name="_prodv_26_namewz">產(chǎn)品型號：</span></span> <span id="znfrt0j" class="xn_c_prodv_26_namemc"><span id="xn_c_prodv_26_Text1">JH-TN200</span></span> </div> <div id="znfrt0j" class="xn_c_prodv_26_name" style="line-height: 36px;"> <span id="znfrt0j" class="xn_c_prodv_26_namewz"><span name="_prodv_26_namewz">產(chǎn)品時間：</span></span> <span id="znfrt0j" class="xn_c_prodv_26_namemc"><span id="xn_c_prodv_26_Text1">2024-07-15</span></span> </div> </div> <div class="znfrt0j" id="prod_view_ms" class="prod_view_ms"><span id="ShoveWebControl_Text7">氨氮測定儀產(chǎn)品國標法測氨氮：</br>JH-TN200型氨氮快速測定儀測量方法符合國標規(guī)定的納氏試劑比色法，應用微電腦光電子比色檢測原理取代傳統(tǒng)的目視比色法，測量分辨率大大提高。實現(xiàn)了測定過程的自動化。</span></div> </div> <p></p> </dd> </dl> <div id="znfrt0j" class="main_top3"><p>產(chǎn)品介紹</p></div> <div id="znfrt0j" class="product1 pro_1"> <p><span style="font-size:16px"><span style="font-family:黑體"><strong>氨氮測定儀產(chǎn)品國標法測氨氮</strong><span style="line-height:1.6em">技術參數(shù)：</span></span></span></p><p><span style="font-size:16px"><span style="font-family:黑體">1.測定方法：納氏比色法；<br />2.測定范圍：（0 ～ 50mg/L）； <br />3.測量誤差：≤±5 %<br />4.曲線參數(shù)：可設定100條測量曲線參數(shù)；<br />5.校準：1-7點校正模式，自動校正曲線值；<br />6.內(nèi)置實時時鐘，實時時鐘月累積誤差小于10秒；<br />7.記錄存儲：可存儲10000次測定結果，數(shù)據(jù)斷電不丟失；<br />8.打印：便攜式打印機，直接打印測量結果（選配）；<br />9.通信方式：RS232，可將測量結果上傳至電腦，便于用戶統(tǒng)計分析；<br />10.顯示：240*128大屏幕藍色背光顯示器，中文操作界面；<br />11.環(huán)境溫度：（5 ~ 40）℃；環(huán)境濕度：相對濕度＜ 85%（無冷凝）；<br />12.外形尺寸：270*200*120mm；整機重量1KG;<br />13.工作電源：AC220V / 50Hz；</span></span></p><p><span style="font-size:16px"><span style="font-family:黑體"><img alt="" src="https://img70.chem17.com/gxhpic_d55d0c909a/0a2dd54fcf8c21b358c386ab16f4b691401094445632fb09aa5de4e281f699c448717dc03f4f1457.jpg" /></span></span></p><p><span style="font-size:16px"><span style="font-family:黑體"><strong>氨氮測定儀產(chǎn)品國標法測氨氮</strong>產(chǎn)品概述：</span></span></p><p><span style="font-size:16px"><span style="font-family:黑體">JH-TN200型氨氮快速測定儀測量方法符合國標的納氏試劑比色法，應用微電腦光電子比色檢測原理取代傳統(tǒng)的目視比色法，測量分辨率大大提高。實現(xiàn)了測定過程的自動化。</span></span></p><p><span style="font-size:16px"><span style="font-family:黑體">JH-TN200型氨氮快速測定儀可廣泛地應用于廠礦企業(yè)排污口監(jiān)測、城市污水處理工廠進出口監(jiān)測、江河湖泊水質(zhì)監(jiān)測和污水治理設施過程控制之中。</span></span></p><p><span style="font-size:16px"><span style="font-family:黑體"><strong style="line-height:1.2em">水樣的稀釋</strong></span></span></p><p><span style="font-size:16px"><span style="font-family:黑體">該儀器測定總磷的方法是采用鉬酸銨分光光度法。本方法直接檢測的低檢出濃度為0.01mg／L，測定上限為0.75mg／L。對于濃度高于0.75mg／L的水樣，可以分段或稀釋測定。</span></span></p><p><span style="font-size:16px"><span style="font-family:黑體">對于清潔的樣品，可直接從中取水樣作為試份；對于含有懸浮物或色度深的樣品，在預處理后，再從中取水樣作為試份。</span></span></p><h3><span style="font-size:16px"><span style="font-family:黑體"><strong>測定</strong><strong>方法與原理</strong></span></span></h3><p><span style="font-size:16px"><span style="font-family:黑體">用分光光度法測懸浮物，所得到的吸光度與懸浮物濃度成正比，有較好的線性關系。與傳統(tǒng)的過濾法復雜的操作程序相比，操作簡單，節(jié)省時間，更適合快速測定，提高檢測效率。</span></span></p><h3><span style="font-size:16px"><span style="font-family:黑體"><strong>水樣的采集與保存</strong></span></span></h3><p><span style="font-size:16px"><span style="font-family:黑體">要注意水樣的代表性。所取水樣應為無樹葉、枯枝、水草、魚等雜質(zhì)。將水樣盛于清潔、無色的玻璃瓶內(nèi)，盡快測定。</span></span></p><p><span style="font-size:16px"><span style="font-family:黑體"><img alt="" src="https://img71.chem17.com/gxhpic_d55d0c909a/5837e7fd60b3b97d34f2de487bca7e95a7cac3c5177e13affae3ef66c5f85dae98ccf34292f3016c.jpg" style="height:800px; width:800px" /></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">配制標準溶液</span></strong></span></span></p><p><span style="font-size:16px"><span style="font-family:黑體"><span style="color:#000000">標準溶液也稱為標準物質(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。其硝酸鹽氮的濃度是已知的。用戶可通過購買或按照要求自行配制得到。標準溶液主要有以下幾個用途：</span></span></span></p><p><span style="font-size:16px"><span style="font-family:黑體"><span style="color:#000000">① 對硝酸鹽氮測定儀的曲線進行校準；</span></span></span></p><p><span style="font-size:16px"><span style="font-family:黑體"><span style="color:#000000">② 對硝酸鹽氮測定的準確度進行檢驗；</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行確認與評價；</span></span></span></p><p><span style="font-size:16px"><span style="font-family:黑體"><span style="color:#000000">④ 對儀器的整個測量過程進行質(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）.標準溶液（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">稱取預先在 l05～110℃烘干4小時并冷卻后的硝酸鉀(KNO</span><sub><span style="color:#000000">3</span></sub><span style="color:#000000">)0.7218g全部溶于無氨水，轉移至1000mL容量瓶中，用水稀釋至標線，搖勻，該溶液的硝酸鹽氮值為100mg/L。加入2ml三氯甲烷（</span>CHCl<sub>3</sub><span style="color:#000000">）為保護劑，至少可穩(wěn)定6個月。</span></span></span></p><p><span style="font-size:16px"><span style="font-family:黑體"><span style="color:#000000">（2）.標準使用液配制方法：</span></span></span></p><p><span style="font-size:16px"><span style="font-family:黑體"><span style="color:#000000">吸取上述標準儲備溶液20ml于100ml的容量瓶內(nèi)，用無氨水稀釋至標線，混勻，此溶液硝酸鹽氮濃度為20mg/L，隨時使用隨時配制</span></span></span></p><p><span style="font-size:16px"><span style="font-family:黑體"><img alt="" src="https://img69.chem17.com/gxhpic_d55d0c909a/5837e7fd60b3b97d34f2de487bca7e957f056c804e09e602ecf8dfea82ca152b09979d2d26aec709.jpg" style="height:800px; width:800px" /><img alt="" src="https://img68.chem17.com/gxhpic_d55d0c909a/5837e7fd60b3b97d34f2de487bca7e953784fcb96ad03bf567ab7e8c9c391d44720878b5f04f62e6.jpg" style="height:513px; width:790px" /></span></span></p><p> </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, 請以實機為準，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 rel="stylesheet" type="text/css" href="/css/MessageBoard_style.css"> <script language="javascript" src="/skins/Scripts/order.js?v=20210318" 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