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class="page-proshow clearfix"><p class="current"> 當(dāng)前位置:<a href="http://www.cdcfah.com/">首頁?<a href="http://www.cdcfah.com/cp/">產(chǎn)品供應(yīng)</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>?甲醇原子吸收分光光度計(jì)儀器真誠推薦上海儀電分析儀器供應(yīng)</p><div id="gvuw2s3" class="leftbox clearfix"><h1>甲醇原子吸收分光光度計(jì)儀器真誠推薦上海儀電分析儀器供應(yīng)</h1><div id="mld3txe" class="proBig"><div id="3qsurya" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/ydfx123/637419988085019176/8464581.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="v7f2v4p" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/ydfx123/637419988085019176/8464581.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="lfspwdf" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價(jià)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(guān)鍵詞：</span>甲醇原子吸收分光光度計(jì)儀器,原子吸收分光光度計(jì)</p><p><span>***更新：</span>2021-01-07 10:16:41</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="qac2oda" 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(jī): </span>021-34530361</p><p><span>地址: </span>徐塘路88號(hào)7幢4層、9幢</p><p>[當(dāng)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="2oqxu83" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="rqdogip" class="box"><p><p style="text-indent:25px">現(xiàn)在AAS在水質(zhì)中的微量重金屬(As、Hg、Cd、Cr、Cu等)檢測方面十分受用戶的青睞。例如：水中Cu大于1.5mg/L會(huì)有苦味;Cu對心病影響很大;水中Cu超標(biāo)會(huì)按捺藻類生長，影響水產(chǎn)飼養(yǎng);特別要注意的還有飲用水中的Hg、As等對人類損害特別大，都是致的微量元素。為什么AAS在剖析檢測工作中倍受青睞?一是價(jià)格便宜、性價(jià)比高;二是操作比較簡單;三是靈敏度較高，甲醇原子吸收分光光度計(jì)儀器，甲醇原子吸收分光光度計(jì)儀器。所以，甲醇原子吸收分光光度計(jì)儀器，廣闊科技工作者應(yīng)該重視AAS的應(yīng)用開展情況。許多第三方檢測機(jī)構(gòu)都在很多使用AAS，現(xiàn)在開展很快值得我們高度重視。氣態(tài)的原子能發(fā)射某些特征譜線，也能吸收同樣波長的這些譜線。甲醇原子吸收分光光度計(jì)儀器</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="甲醇原子吸收分光光度計(jì)儀器,原子吸收分光光度計(jì)" src="https://tyunfile.71360.com/WaterMark/UploadFile/ydfx123/637419988085019176/8464581.png"></div><p style="text-indent:25px">原子吸收分光光度計(jì)的安全運(yùn)用留意事項(xiàng)：1、在運(yùn)輸過程中遭到劇烈碰擊的儀器，主機(jī)不能冒然通電。2、長期在惡劣條件寄存的儀器應(yīng)該經(jīng)常維護(hù)保養(yǎng)。3、一旦儀器的報(bào)警器發(fā)出聲音,應(yīng)當(dāng)即關(guān)掉氣源，并關(guān)機(jī)。4、請您隨時(shí)留意，一旦發(fā)生異味，請當(dāng)即切斷電源，關(guān)掉乙炔鋼瓶總閥門。請將空壓機(jī)的空氣管插入燃?xì)夤艿乐?，并涂改肥皂水以檢查燃?xì)夤艿栏鹘宇^是否漏氣，特別應(yīng)該檢查霧化筒后部的防爆塞是否密封無缺，決不能在發(fā)生漏氣時(shí)燃燒操作，否則容易發(fā)生回火爆。食品安全原子吸收分光光度計(jì)排行原子吸收光譜分析工作原理：利用待測元素的共振輻射。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="甲醇原子吸收分光光度計(jì)儀器,原子吸收分光光度計(jì)" src="https://tyunfile.71360.com/WaterMark/UploadFile/ydfx123/637419991291551872/1267970.png"></div><p style="text-indent:25px">石墨爐原子吸收分光光度計(jì)，可以測定近50種元素。石墨爐法，進(jìn)樣量少，靈敏度高，有的元素也可以分析到pg/mL級(jí)。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(jìn)行選擇性吸收。在一定濃度范圍內(nèi)，其吸收強(qiáng)度與試液中被測元素的含量成正比。其定量關(guān)系可用郎伯-比耳定律，A=-lgI/Io=-lgT=KCL，式中I為透射光強(qiáng)度；I0為發(fā)射光強(qiáng)度；T為透射比；L為光通過原子化器光程(長度)，每臺(tái)儀器的L值是固定的；C是被測樣品濃度；所以A=KC。</p><p style="text-indent:25px">原子吸收分光光度計(jì)的優(yōu)點(diǎn)是：原子化效率高，在可調(diào)的高溫下試樣利用率達(dá)100%，靈敏度高，試樣用量少，適用于難熔元素的測定。缺點(diǎn)是：試樣組成不均勻性的影響較大，測定精密度較低，共存化合物的干擾比火焰原子化法大，干擾背景比較嚴(yán)重，一般都需要校正背景。原子吸收光譜分析現(xiàn)已多用于各個(gè)分析領(lǐng)域，主要有四個(gè)方面：理論研究；元素分析；有機(jī)物分析；金屬化學(xué)形態(tài)分析。理論研究中的應(yīng)用：原子吸收可作為物理和物理化學(xué)的一種實(shí)驗(yàn)手段，對物質(zhì)的一些基本性能進(jìn)行測定和研究。電熱原子化器容易做到控制蒸發(fā)過程和原子化過程，所以用它測定一些基本參數(shù)有很多優(yōu)點(diǎn)。用電熱原子化器所測定的一些有元素離開機(jī)體的活化能、氣態(tài)原子擴(kuò)散系數(shù)、解離能、振子強(qiáng)度、光譜線輪廓的變寬、溶解度、蒸氣壓等。原子吸收分光光度計(jì)精密度1%左右。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="甲醇原子吸收分光光度計(jì)儀器,原子吸收分光光度計(jì)" src="https://tyunfile.71360.com/WaterMark/UploadFile/ydfx123/637419991326259040/7441452.png"></div><p style="text-indent:25px">原子吸收光譜儀又稱原子吸收分光光度計(jì)，根據(jù)物質(zhì)基態(tài)原子蒸汽對特征輻射吸收的作用來進(jìn)行金屬元素分析。它能夠靈敏可靠地測定微量或痕量元素。氣態(tài)的原子能發(fā)射某些特征譜線，也能吸收同樣波長的這些譜線。這是歷史上用原子吸收光譜進(jìn)行定性分析的一例證。很長一段時(shí)間，原子吸收主要局限于天體物理方面的研究，在分析化學(xué)中的應(yīng)用未能引起重視，其主要原因是未找到可產(chǎn)生銳線光譜的光源。直至20世紀(jì)30年代，由于汞的多應(yīng)用，對大氣中微量汞的測定曾利用原子吸收光譜原理設(shè)計(jì)了測汞儀，這是原子吸收在分析中的早應(yīng)用。火焰原子吸收分光光度計(jì)對大多數(shù)元素有較高靈敏度。食品安全原子吸收分光光度計(jì)排行</p><p style="text-indent:25px">原子化往往是將溶液噴霧到火焰中去實(shí)現(xiàn)。甲醇原子吸收分光光度計(jì)儀器</p><p style="text-indent:25px">你知道怎樣正確挑選原子吸收分光光度計(jì)嗎？1.剖析線挑選：通常選用共振吸收線為剖析線，測定高含量元素時(shí)，能夠選用靈敏度較低的非共振吸收線為剖析線。As、Se等共振吸收線位于200nm以下的遠(yuǎn)紫外區(qū)，火焰組分對其有明顯吸收，故用火焰原子吸收法測定這些元素時(shí)，不宜選用共振吸收線為剖析線。2.狹縫寬度挑選：狹縫寬度影響光譜通帶寬度與檢測器接受的能量。原子吸收分光光度計(jì)中，光譜堆疊干擾的幾率小，能夠答應(yīng)運(yùn)用較寬的狹縫。調(diào)節(jié)不同的狹縫寬度，測定吸光度隨狹縫寬度而變化，當(dāng)有其它的譜線或非吸收光進(jìn)入光譜通帶內(nèi)，吸光度將當(dāng)即減小。不引起吸光度減小的很大狹縫寬度，即為應(yīng)選取的合適的狹縫寬度。甲醇原子吸收分光光度計(jì)儀器</p><p style="text-indent:25px">上海儀電分析儀器有限公司是一家儀器儀表、電子元器件及相關(guān)的系統(tǒng)集成的生產(chǎn)、服務(wù)及銷售，計(jì)算機(jī)軟件開發(fā)及銷售，從事貨物進(jìn)出口及技術(shù)進(jìn)出口業(yè)務(wù)。【依法須經(jīng)批準(zhǔn)的項(xiàng)目，經(jīng)相關(guān)部門批準(zhǔn)后方可開展經(jīng)營活動(dòng)】儀器儀表、電子元器件及相關(guān)的系統(tǒng)集成的生產(chǎn)、服務(wù)及銷售，計(jì)算機(jī)軟件開發(fā)及銷售，從事貨物進(jìn)出口及技術(shù)進(jìn)出口業(yè)務(wù)。【依法須經(jīng)批準(zhǔn)的項(xiàng)目，經(jīng)相關(guān)部門批準(zhǔn)后方可開展經(jīng)營活動(dòng)】的公司，是一家集研發(fā)、設(shè)計(jì)、生產(chǎn)和銷售為一體的專業(yè)化公司。儀電分析深耕行業(yè)多年，始終以客戶的需求為向?qū)?，為客戶提?**的分光光度計(jì)，氣相色譜，原子吸收，食品安全。儀電分析致力于把技術(shù)上的創(chuàng)新展現(xiàn)成對用戶產(chǎn)品上的貼心，為用戶帶來良好體驗(yàn)。儀電分析始終關(guān)注儀器儀表市場，以敏銳的市場洞察力，實(shí)現(xiàn)與客戶的成長共贏。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2743483.html</p></div></div></div></div></div><div id="aubi2jy" class="page-right twoColRt"><div id="bq3l8i3" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="eyax8uj" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img 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