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<p><span>總磷是水體中磷元素的總含量，是評(píng)價(jià)水質(zhì)的重要指標(biāo)。其主要來源為生活污水、化肥、有機(jī)磷農(nóng)藥及近代洗滌劑所用的磷酸鹽增潔劑等。水體中的磷是藻類生長(zhǎng)需要的一種關(guān)鍵元素，過量磷是造成水體污穢異臭，使湖泊發(fā)生富營(yíng)養(yǎng)化和海灣出現(xiàn)赤潮的主要原因。</span></p><p><span><br/></span></p><p><span>原理：水中的含磷化合物在高溫高壓的條件下被強(qiáng)氧化劑氧化為正磷酸鹽，正磷酸鹽在鉬酸鹽酸性溶液中，生成磷鉬酸雜多酸還原為藍(lán)色的磷鉬酸鹽，通過測(cè)量該磷鉬酸鹽的吸光度，從而得到水樣中總磷的含量。</span></p><p><span><br/></span></p><p><span>主要應(yīng)用場(chǎng)景有企業(yè)雨水、污水的監(jiān)測(cè)，市政管網(wǎng)、提升泵站、地下水、河水、湖泊水、海水等水質(zhì)中總磷含量的監(jiān)測(cè)。</span></p><p><br/></p> </div> <div id="3tzm5vv4jmr" class="ly_PrevNext"> <ul> <li>上一篇：<a href="/Article-3171344.html">氨氮分析原理和用途</a></li> <li>下一篇：<a href="/Article-3170239.html">總氮分析原理和用途</a></li> </ul> </div> </div>   <div id="3tzm5vv4jmr" class="ly_foot"> <div id="3tzm5vv4jmr" class="ly_Ftmain"> <div id="3tzm5vv4jmr" class="ly_FtLeft"> <div id="3tzm5vv4jmr" class="Ft_nav"><a href="/">首頁</a><a href="/aboutus.html" target="_blank" rel="nofollow">關(guān)于我們</a><a href="/products.html" 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