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href="http://www.cdcfah.com/">首頁?<a href="http://www.cdcfah.com/cp/">產(chǎn)品供應</a>?<a href="http://www.cdcfah.com/cp/first-_yiqiyibiao/">儀器儀表</a>?<a href="http://www.cdcfah.com/cp/second-yiqiyibiao_fenxiyiqi/">分析儀器</a>?<a href="http://www.cdcfah.com/cp/third-fenxiyiqi_ysfxyq/">元素分析儀器</a>?水質原子吸收分光光度計客戶至上上海儀電分析儀器供應</p><div id="g9729eq" class="leftbox clearfix"><h1>水質原子吸收分光光度計客戶至上上海儀電分析儀器供應</h1><div id="8m8ztu8" class="proBig"><div id="3e4tqie" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/ydfx123/637419988246893719/5353894.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="lnjry3y" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/ydfx123/637419988246893719/5353894.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="ah7s7o8" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價格要求：</span>面議</p><p><span>所在地：</span>上海市</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關鍵詞：</span>水質原子吸收分光光度計,原子吸收分光光度計</p><p><span>***更新：</span>2021-01-12 07:13:39</p><p><span id="click" >瀏覽次數(shù)：0次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="cgtqseq" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">上海儀電分析儀器有限公司</a></p><p><span>聯(lián)系人：</span>薛馬駿</p><p><span>郵箱: </span>ydfxwx@qq.com</p><p><span>電話: </span>18001994173</p><p><span>傳真: </span>021_</p><p><span>網(wǎng)址: </span>http://www.inesa-a.com</p><p><span>手機: </span>021-34530361</p><p><span>地址: </span>徐塘路88號7幢4層、9幢</p><p>[當前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="fzldz8o" class="page-proshow02"><p class="title">詳細說明</p><div id="3wls3t9" class="box"><p><p style="text-indent:25px">原子吸收光譜分析，由于其靈敏度高、干擾少、分析方法簡單快速，現(xiàn)已多地應用于工業(yè)、農(nóng)業(yè)、生化、地質、冶金、食品、環(huán)保等各個領域，水質原子吸收分光光度計，目前原子吸收已成為金屬元素分析的強有力工具之一，而且在許多領域已作為標準分析方法。原子吸收光譜分析的特點決定了它在地質和冶金分析中的重要地位，水質原子吸收分光光度計，它不*取代了許多一般的濕法化學分析，而且還與X-射線熒光分析，甚至與中子活化分析有著同等的地位。目前原子吸收法已用來測定地質樣品中70多種元素，并且大部分能夠達到足夠的靈敏度和很好的精密度。鋼鐵，水質原子吸收分光光度計、合金和高純金屬中多種痕量元素的分析現(xiàn)在也多用原子吸收法。原子吸收分光光度計一般由四大部分組成。水質原子吸收分光光度計</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="水質原子吸收分光光度計,原子吸收分光光度計" src="https://tyunfile.71360.com/WaterMark/UploadFile/ydfx123/637419988246893719/5353894.png"></div><p style="text-indent:25px">原子吸收分光光度計剖析是現(xiàn)在很靈敏的方法之一?；鹧嬖游盏南鄬`敏度為ug/ml-ng/ml，無火焰原子吸收分光光度計的肯定靈敏度在10-10-10-14之間。如果采取預富集，可進一步進步剖析靈敏度。因為該方法的靈敏度高，使剖析手續(xù)簡化可直接測定，則縮短剖析周期加快丈量進程。因為靈敏度高，則需樣量少。微量進樣熱核的引進，可使火趣味的需樣量少至20-300ul。無火焰原子吸收分光光度計剖析的需樣量*5–100ul。固體直接進樣石墨爐原子吸收法*需0.005-30mg，這關于實驗來歷困難的剖析是很為有利的。甲醛原子吸收分光光度計排行原子吸收分光光度計具有靈敏度高及選擇性好兩大主要優(yōu)點。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="水質原子吸收分光光度計,原子吸收分光光度計" src="https://tyunfile.71360.com/WaterMark/UploadFile/ydfx123/637419988150712025/4463747.png"></div><p style="text-indent:25px">原子吸收分析中，首先要使待測元素呈原子狀態(tài)，而原子化往往是將溶液噴霧到火焰中去實現(xiàn)，這就存在理化方面的干擾，使對難溶元素的測定靈敏度還不夠理想，因此實際效果理想的元素*30余個；由于儀器使用中，需用乙炔、氫氣、氬氣、氧化亞氮（俗稱笑氣）等，操作中必須注意安全。原子吸收分光光度計一般由四大部分組成，即光源（單色銳線輻射源）、試樣原子化器、單色儀和數(shù)據(jù)處理系統(tǒng)（包括光電轉換器及相應的檢測裝置）。原子化器主要有兩大類，即原子吸收分光光度計和電熱原子化器?；鹧嬗卸喾N火焰，目前普遍應用的是空氣—乙炔火焰。</p><p style="text-indent:25px">原子吸收分光光度計的工作原理：原子吸收光譜儀又稱原子吸收分光光度計，根據(jù)物質基態(tài)原子蒸汽對特征輻射吸收的作用來進行金屬元素分析。它能夠靈敏可靠地測定微量或痕量元素。原子吸收分光光度計一般由四大部分組成，即光源(單色銳線輻射源)、試樣原子化器、單色儀和數(shù)據(jù)處理系統(tǒng)(包括光電轉換器及相應的檢測裝置)。元素在熱解石墨爐中被加熱原子化，成為基態(tài)原子蒸汽，對空心陰極燈發(fā)射的特征輻射進行選擇性吸收。在一定濃度范圍內(nèi)，其吸收強度與試液中被的含量成正比。現(xiàn)在我國已有多家企業(yè)生產(chǎn)多種型號、性能較先進的原子吸收分光光度計。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="水質原子吸收分光光度計,原子吸收分光光度計" src="https://tyunfile.71360.com/WaterMark/UploadFile/ydfx123/637419988163192494/7997740.png"></div><p style="text-indent:25px">原子吸收分光光度計是使用多的原子化器，但它很大的缺陷是原子化效率不高，原子蒸氣停留時刻短，因而火焰中的自在原子濃度很低。原因是霧化效率低，待測物遭到大量氣體的稀釋，以及金屬原子在火焰中易受氧化作用生成熱安穩(wěn)的難熔氧化物。另一個存在的問題是火焰中的化學反應不易控制，造成火焰溫度不安穩(wěn)，火焰各部分的溫度也是不均勻的應非原子吸收分光光度計能夠進步原子化效率，進步測量的靈敏度。進樣量過小，吸收信號弱，不便于測量；進樣量過大，在火焰原子化法中，對火焰發(fā)生冷卻效應，在原子吸收分光光度計中，會增加除殘的困難。在實際作業(yè)中，應測定吸光度隨進樣量的變化，到達很滿意的吸光度的進樣量，即為應挑選的進樣量。原子吸收分光光度計存在理化方面的干擾。便攜原子吸收分光光度計銷售廠家</p><p style="text-indent:25px">原子吸收分光光度計主要用于痕量元素雜質的分析。水質原子吸收分光光度計</p><p style="text-indent:25px">原子吸收分光光度計運用也有一定的局限性，即每種待測元素都要有一個能發(fā)射特定波長譜線的光源。原子吸收分光光度計剖析中，首要要使待測元素呈原子狀態(tài)，而原子化往往是將溶液噴霧到火焰中去完成，這就存在理化方面的攪擾，使對難溶元素的測定靈敏度還不行抱負，因而實際效果抱負的元素*30余個；因為儀器運用中，需用乙炔、氫氣、氬氣、氧化亞氮等，操作中有必要注意。靈敏度高、檢出限低由于試樣直接注入石墨管內(nèi)，樣品幾乎全部蒸騰并參與吸收試樣原子化是在惰性氣體維護下，還原性氣氛的石墨管內(nèi)進行的，有利于難熔氧化物的分化和自在原子的形成，自在原子在石墨管內(nèi)平均停留時刻長，因而管內(nèi)自在原子密度高，肯定靈敏度達10-12～10-14g。表1列出了石墨爐原子化法與火焰原子化法的靈敏度比較。水質原子吸收分光光度計</p><p style="text-indent:25px">上海儀電分析儀器有限公司致力于儀器儀表，是一家生產(chǎn)型公司。公司業(yè)務分為分光光度計，氣相色譜，原子吸收，食品安全等，目前不斷進行創(chuàng)新和服務改進，為客戶提供良好的產(chǎn)品和服務。公司注重以質量為中心，以服務為理念，秉持誠信為本的理念，打造儀器儀表良好品牌。儀電分析秉承“客戶為尊、服務為榮、創(chuàng)意為先、技術為實”的經(jīng)營理念，全力打造公司的重點競爭力。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2812991.html</p></div></div></div></div></div><div id="8gvszby" class="page-right twoColRt"><div id="qf87zwy" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="ztlspbt" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img src="http://tyunfile.71360.com/UpLoadFile/2019/11/1/14/637082168864691056_lgpj_5374157.jpg" alt="福建ZF配件哪家強信息推薦自業(yè)物資供應" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>福建ZF配件哪家強信息推薦自業(yè)物資供應</p></a></div><div id="tik2uw2" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/846569.html"><div><img 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