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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>國內原子吸收分光光度計怎么樣,原子吸收分光光度計</p><p><span>***更新：</span>2020-12-25 06:15:37</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="ium229r" 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="xmo9858" class="page-proshow02"><p class="title">詳細說明</p><div id="pyau992" class="box"><p><p style="text-indent:25px">你知道怎樣正確挑選原子吸收分光光度計嗎？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，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，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，國內原子吸收分光光度計怎么樣。原子吸收分光光度計中，光譜堆疊干擾的幾率小，能夠答應運用較寬的狹縫，國內原子吸收分光光度計怎么樣。調節(jié)不同的狹縫寬度，國內原子吸收分光光度計怎么樣，測定吸光度隨狹縫寬度而變化，當有其它的譜線或非吸收光進入光譜通帶內，吸光度將當即減小。不引起吸光度減小的很大狹縫寬度，即為應選取的合適的狹縫寬度。原子吸收分光光度計實際效果理想的元素*30余個。國內原子吸收分光光度計怎么樣</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="國內原子吸收分光光度計怎么樣,原子吸收分光光度計" src="https://tyunfile.71360.com/WaterMark/UploadFile/ydfx123/637419991236161257/4858141.png"></div><p style="text-indent:25px">現(xiàn)在AAS在水質中的微量重金屬(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會有苦味;Cu對心病影響很大;水中Cu超標會按捺藻類生長，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?一是價格便宜、性價比高;二是操作比較簡單;三是靈敏度較高。所以，廣闊科技工作者應該重視AAS的應用開展情況。許多第三方檢測機構都在很多使用AAS，現(xiàn)在開展很快值得我們高度重視。分析檢測原子吸收分光光度計性價比原子吸收分光光度計一般靈敏度在ng/ml級（10-9），相對標準偏差2%左右。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="國內原子吸收分光光度計怎么樣,原子吸收分光光度計" src="https://tyunfile.71360.com/WaterMark/UploadFile/ydfx123/637419988188495975/1516361.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開展：1981年原子吸收分光光度計完成操作自動化。1984年首臺連續(xù)氫化物發(fā)生器面世。1990年推出世界上先進的MarkV1焰燃燒頭。1995年在線火焰自動進樣器（SIPS8）研制成功并投入運用。1998年首臺快速剖析火焰原子吸收220FS誕生。2002年世界上**火焰和石墨爐同時剖析的原子吸收光譜儀出產(chǎn)并投放市場。原子吸收分光光度計怎樣用才正確？該崗位群主要是散布于冶金、環(huán)保、食物、制藥、醫(yī)療衛(wèi)生、化學、化工、農(nóng)業(yè)等領域，主要從事環(huán)境和產(chǎn)品中金屬物質的檢驗以及科學研制的質量操控等工作。原子吸收分光光度計使對難溶元素的測定靈敏度還不夠理想。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="國內原子吸收分光光度計怎么樣,原子吸收分光光度計" src="https://tyunfile.71360.com/WaterMark/UploadFile/ydfx123/637419991385859509/5179129.png"></div><p style="text-indent:25px">原子吸收分光光度計現(xiàn)已多用于各個剖析領域，主要有四個方面:理論研究;元素剖析;有機物剖析;金屬化學形狀剖析，理論研究中的使用:原子吸收可作為物理和物理化學的一種實驗手段，對物質的一些根本性能進行測定和研究。電熱原子化器簡單做到控制蒸發(fā)進程和原子化進程，所以用它測定一些根本參數(shù)有很多長處。用電熱原子化器所測定的一些有元素脫離機體的活化能、氣態(tài)原子擴散系數(shù)、解離能、振子強度、光譜線輪廓的變寬、溶解度、蒸氣壓等?，F(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。分析檢測原子吸收分光光度計性價比</p><p style="text-indent:25px">原子吸收分光光度計在分析化學中的應用未能引起重視。國內原子吸收分光光度計怎么樣</p><p style="text-indent:25px">原子吸收分光光度計和ICP的比較：原理：原子吸收分光光度計：經(jīng)過測定某一具有特定波長的光經(jīng)過試樣原子蒸氣后被吸收的多少來測定被測元素的含量的一種方法。選擇性強，簡潔、快速。因為其選用銳線光源，樣品不需要經(jīng)繁瑣的分離，可在同一溶液中直接測定多種元素，測定一個元素只需要數(shù)分鐘，分析操作簡潔、迅速?？垢蓴_能力強。原子吸收線數(shù)目少，光譜干擾少，一般不存在共存元素的光譜堆疊干擾。應用范圍廣。可測60多種元素；既能用于微量分析又能用于超微量分析。另外，還可用直接的辦法測定非金屬元素和有機化合物。國內原子吸收分光光度計怎么樣</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。公司自成立以來，以質量為發(fā)展，讓匠心彌散在每個細節(jié)，公司旗下分光光度計，氣相色譜，原子吸收，食品安全深受客戶的喜愛。公司將不斷增強企業(yè)重點競爭力，努力學習行業(yè)知識，遵守行業(yè)規(guī)范，植根于儀器儀表行業(yè)的發(fā)展。儀電分析立足于全國市場，依托強大的研發(fā)實力，融合前沿的技術理念，飛快響應客戶的變化需求。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2554717.html</p></div></div></div></div></div><div id="iwic4tf" class="page-right twoColRt"><div id="ycprlhu" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="mb3kry3" 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="fzmtszt" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/846569.html"><div><img 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