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font-weight: 700;">氨氮測定儀</span></span><span style="color: rgb(51, 51, 51); font-family: " microsoft="" text-indent:="">采用納氏比色法測量水中的氨氮，該方法具有操作簡便、靈敏度高等特點。其原理是：以游離態(tài)的氨或銨離子等形式存在的氨氮與鈉氏試劑反應(yīng)生成黃棕色絡(luò)合物，該絡(luò)合物的色度與氨氮的含量成正比。下面介紹下氨氮測定儀測量氨氮的注意事項有哪些?</span></span></p><p style="box-sizing: border-box; margin: 0px; padding: 0px; border: 0px; color: rgb(51, 51, 51); text-align: center; line-height: 1.75em;"><span style="font-size: 14px;"><img src="https://cdn.myxypt.com/afb60ec4/21/02/0ee46cba63e26cd8e48998731a447f279f132b9e.png" width="317" height="234" border="0" vspace="0" title="氨氮測定儀" alt="氨氮測定儀" style="box-sizing: border-box; border: none; vertical-align: middle; margin: 0px; padding: 0px; background: none; max-width: 100%; width: 317px; height: 234px;"/></span></p><p style="box-sizing: border-box; margin: 0px; padding: 0px; border: 0px; color: rgb(51, 51, 51); line-height: 1.75em;"><span style="font-size: 14px;">　　一、氨氮測定儀測量氨氮的注意事項<br style="box-sizing: border-box;"/></span></p><p style="box-sizing: border-box; margin: 0px; padding: 0px; border: 0px; color: rgb(51, 51, 51); line-height: 1.75em;"><span style="font-size: 14px;">　　1、實驗時，所用到的玻璃器皿、比色管必要的情況下用硫酸清洗。<br style="box-sizing: border-box;"/></span></p><p style="box-sizing: border-box; margin: 0px; padding: 0px; border: 0px; color: rgb(51, 51, 51); line-height: 1.75em;"><span style="font-size: 14px;">　　2、制備好的樣品在上機(jī)測試前，要保證比色管外壁要擦拭干凈，不能有水滴或手痕。<br style="box-sizing: border-box;"/></span></p><p style="box-sizing: border-box; margin: 0px; padding: 0px; border: 0px; color: rgb(51, 51, 51); line-height: 1.75em;"><span style="font-size: 14px;">　　3、做水樣分析時，靜置水樣并取上清液進(jìn)行分析。<br style="box-sizing: border-box;"/></span></p><p style="box-sizing: border-box; margin: 0px; padding: 0px; border: 0px; color: rgb(51, 51, 51); line-height: 1.75em;"><span style="font-size: 14px;">　　二、氨氮測定儀測量氨氮如何處理干擾物質(zhì)<br style="box-sizing: border-box;"/></span></p><p style="box-sizing: border-box; margin: 0px; padding: 0px; border: 0px; color: rgb(51, 51, 51); line-height: 1.75em;"><span style="font-size: 14px;">　　水樣中含有懸浮物，余氯，鈣鎂等金屬離子、硫化物、有機(jī)物時會產(chǎn)生干擾，含有此類物質(zhì)時要做適當(dāng)?shù)奶幚恚韵龑y定的干擾。<br style="box-sizing: border-box;"/></span></p><p style="box-sizing: border-box; margin: 0px; padding: 0px; border: 0px; color: rgb(51, 51, 51); line-height: 1.75em;"><span style="font-size: 14px;">　　1、除余氯若樣品中含有余氯，加入適量的硫代硫酸鈉溶液(0.35%)，每0.5mL可除去0.25mg余氯，可用淀粉-碘化鉀檢驗是否除盡。<br style="box-sizing: border-box;"/></span></p><p style="box-sizing: border-box; margin: 0px; padding: 0px; border: 0px; color: rgb(51, 51, 51); line-height: 1.75em;"><span style="font-size: 14px;">　　2、絡(luò)合掩蔽酒石酸鉀鈉可以消除鈣鎂離子的干擾。<br style="box-sizing: border-box;"/></span></p><p style="box-sizing: border-box; margin: 0px; padding: 0px; border: 0px; color: rgb(51, 51, 51); line-height: 1.75em;"><span style="font-size: 14px;">　　3、絮凝沉淀若水樣渾濁，取100ml水樣加入1.0ml10%硫酸鋅溶液和0.1～0.2ml25%氫氧化鈉溶液，調(diào)節(jié)pH值至10.5左右，混勻，放置使其沉淀，用經(jīng)無氨水充分洗滌過的中速濾紙過濾，棄去初濾液20.0ml。<br style="box-sizing: border-box;"/></span></p><p style="box-sizing: border-box; margin: 0px; padding: 0px; border: 0px; color: rgb(51, 51, 51); line-height: 1.75em;"><span style="font-size: 14px;">　　4、蒸餾法用凝聚沉淀和絡(luò)合掩蔽后，樣品仍渾濁和帶色，則采用蒸餾法處理水樣。</span></p> </div> <div id="sq82xwe7wu" class="ly_PrevNext"> <ul> <li>上一篇：<a href="/jsshengaohua-Article-3603659/">手持式COD快速測定儀常用的測定方法有哪些？</a></li> <li>下一篇：<a href="/jsshengaohua-Article-3597215/">COD測定儀的電池如何保養(yǎng)？</a></li> </ul> </div> </div>   <div id="sq82xwe7wu" class="foot_box"> <div id="sq82xwe7wu" class="footCon"> <div id="sq82xwe7wu" class="foot_t w1300"> <div id="sq82xwe7wu" class="foot_lv"> <div id="sq82xwe7wu" class="foot_logo"><img src="/skins/257424/images/foot_logo.png" /></div> <div id="sq82xwe7wu" class="foot_nav"> <ul> <li><a href="/">首頁</a></li> <li><a href="/products.html">產(chǎn)品中心</a></li> <li><a href="/aboutus.html" rel="nofollow">關(guān)于我們</a></li> <li><a href="/news.html">新聞中心</a></li> <li><a href="/article.html">技術(shù)文章</a></li> <li><a href="/contact.html" rel="nofollow">聯(lián)系我們</a></li> </ul> </div> </div> <div id="sq82xwe7wu" class="footMain"> <div id="sq82xwe7wu" class="foot_tel"> <p>全國統(tǒng)一服務(wù)電話</p> <b>400-800-1712</b></div> <div id="sq82xwe7wu" class="foot_ea"> <p><img src="/skins/257424/images/f_email.png" />電子郵箱：<a href="mailto:2850895171@qq.com">2850895171@qq.com</a></p> <p><img src="/skins/257424/images/f_addr.png" />公司地址：江蘇省常州市武進(jìn)區(qū)丁堰街道經(jīng)濟(jì)開發(fā)區(qū)聯(lián)豐路101號-聯(lián)東U谷常州智能智造科技園7號樓</p> </div> <div id="sq82xwe7wu" class="foot_ewm"><img src="/skins/257424/images/ewm.jpg"/> <p>業(yè)務(wù)咨詢微信</p> </div> </div> </div> </div> <div id="sq82xwe7wu" class="foot_b"> <div id="sq82xwe7wu" class="copyright w1300">Copyright © 2024 江蘇盛奧華環(huán)?？萍加邢薰景鏅?quán)所有 <a target="_blank" rel="nofollow">備案號：蘇ICP備10004166號-6</a> <a href="/sitemap.xml" target="_blank">sitemap.xml</a> 技術(shù)支持：<a target="_blank" rel="nofollow">化工儀器網(wǎng)</a> <a target="_blank" rel="nofollow">管理登陸</a> </div> </div> </div>  <div id="sq82xwe7wu" class="client-2"> <ul id="client-2"> <li id="sq82xwe7wu" class="my-kefu-liuyan"> <div id="sq82xwe7wu" class="my-kefu-main"> <div id="sq82xwe7wu" class="my-kefu-left"><a class="online-contact-btn" onclick="ChatBoxClickGXH()" href="javascript:;" target="_self"><i></i><p>在線咨詢</p></a></div> <div id="sq82xwe7wu" class="my-kefu-right"></div> </div> </li> <li id="sq82xwe7wu" class="my-kefu-tel"> <div id="sq82xwe7wu" class="my-kefu-tel-main"> <div id="sq82xwe7wu" class="my-kefu-left"><a href="tel:400-800-1712" rel="nofollow"><i></i><p>電話</p></a></div> <div id="sq82xwe7wu" class="my-kefu-tel-right">400-800-1712</div> </div> </li> <li id="sq82xwe7wu" class="my-kefu-weixin"> <div id="sq82xwe7wu" class="my-kefu-main"> <div id="sq82xwe7wu" class="my-kefu-left"><i></i><p>微信掃一掃</p></div> <div id="sq82xwe7wu" class="my-kefu-right"> </div> <div id="sq82xwe7wu" class="my-kefu-weixin-pic"><img src="/skins/257424/images/ewm.jpg"> </div> </div> </li> <li id="sq82xwe7wu" class="my-kefu-ftop"> <div id="sq82xwe7wu" class="my-kefu-main"> <div id="sq82xwe7wu" class="my-kefu-left"><a href="javascript:;"><i></i><p>返回頂部</p></a> </div> <div id="sq82xwe7wu" class="my-kefu-right"> </div> </div> </li> </ul> </div> <script src="/skins/257424/js/pt_js.js"></script> <script type='text/javascript' src='/js/VideoIfrmeReload.js?v=001'></script> </html> <footer> <div class="friendship-link"> <p>感谢您访问我们的网站，您可能还对以下资源感兴趣：</p> <a href="http:///" title="东京热无码AV一区二区">东京热无码AV一区二区</a> <div class="friend-links"> <a href="http://m.yuhaichen.cn/">精品欧美一区二区精品久久</a> <a href="http://m.050235.cn/">天堂网a</a> <a href="http://m.2233kass.cn/">99人妻</a> <a href="http://m.zmmsw.cn/">欧美色图在线播放</a> <a href="http://m.yqtz.org.cn/">日韩中文字幕在线不卡</a> <a href="http://m.qtopay.com.cn/"></a> <a href="http://m.adleave.com/">无码人妻一区二区三区在线</a> <a href="http://m.godoors.net.cn/">四虎影视</a> <a href="http://m.planasiahk.com/">无码精品一区二区三区四区</a> <a href="http://m.gzacd.com/">丰满人妻一区二区三区大胸</a> <a href="http://m.mindmatics.cn/">男女交性视频无遮挡全过程</a> <a href="http://m.estio.cn/">国产无套内射普通话对白</a> <a href="http://m.j3138.cn/">欧美久久久久久久,丝袜熟女精品一区二区三区,超碰夫妻,美女精品在线</a> </div> </div> </footer> <script> (function(){ var bp = document.createElement('script'); 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