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face="宋體">水中的氨氮是指以游離氨形式存在的氨，主要來(lái)源于生活污水中含氮有機物受微生物作用的分解產(chǎn)物，焦化合成氨等工業(yè)廢水，以及農田排水等。水體中氨氮含量較高時(shí)，對魚(yú)類(lèi)呈現毒害作用，對人類(lèi)也又不同程度的危害。測定水中氨氮含量有助于評價(jià)水體被污染和</font>“自?xún)?rdquo;狀況，因此氨氮是表征水質(zhì)污染的重要指標。</span><p class="MsoNormal"><span style="mso-spacerun:'yes';font-family:宋體;mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-bidi-font-family:'Times New Roman';font-size:10.5000pt;mso-font-kerning:1.0000pt;"> <font face="宋體">該分析儀器能夠根據現場(chǎng)設定長(cháng)期無(wú)人值守自動(dòng)連續工作，廣泛適用于工業(yè)污染源排放廢水、工業(yè)過(guò)程工藝廢水、工業(yè)污水</font> <font face="宋體">處理廠(chǎng)污水、市政污水處理廠(chǎng)污水等場(chǎng)合。根據現場(chǎng)測試工況的復雜程度，可選配相應的預處理系統，以保證測試過(guò)程可靠、測試結果準確，充分滿(mǎn)足不同場(chǎng)合現場(chǎng)需求。</font></span><span style="mso-spacerun:'yes';font-family:宋體;mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-bidi-font-family:'Times New Roman';font-size:10.5000pt;mso-font-kerning:1.0000pt;"><o:p></o:p></span></p><p class="MsoNormal" 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