石油原子吸收分光光度計(jì)儀器歡迎咨詢上海儀電分析儀器供應(yīng)-b2b網(wǎng)站_b2b電子商務(wù)平臺【買產(chǎn)品】-上?？谄蚴称酚邢薰?/title><meta name="description" content="原子吸收分光光度計(jì)安全使用的前提條件：原子吸收分光光度計(jì)是基于從光源中輻射出的待測元素的特征光波通過樣品的原子蒸氣時(shí)，被蒸氣中待測元素的基態(tài)原子所吸收，使通過的光波強(qiáng)度削弱，依據(jù)光波強(qiáng)度削弱的程度，可以求出樣品中待測元素的含量。利用待測元素"><meta name="keywords" content="石油原子吸收分光光度計(jì)儀器,原子吸收分光光度計(jì)"><link rel="canonical" href="http://www.cdcfah.com/"/><meta name="applicable-device" content="pc"><link rel="shortcut icon" href="/static/new_net_01/images/favicon.ico"><link rel="stylesheet" href="/static/new_net_01/css/slick.css" /><link rel="stylesheet" href="/static/new_net_01/css/addnew.css"><link rel="stylesheet" href="/static/new_net_01/css/sidenav.css"><link rel="stylesheet" href="/static/new_net_01/css/style.css" /><link rel="stylesheet" href="/static/new_net_01/css/tab.css"><link rel="stylesheet" href="/static/new_net_01/css/404.css"> <meta name="baidu-site-verification" content="OBVzrC9aaQ" /> <meta http-equiv="Cache-Control" 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class="leftbox clearfix"><h1>石油原子吸收分光光度計(jì)儀器歡迎咨詢上海儀電分析儀器供應(yīng)</h1><div id="cw78nzg" class="proBig"><div id="crjl8jw" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/ydfx123/637419991268710095/3209448.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="8iaszrt" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/ydfx123/637419991268710095/3209448.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="jtlikm7" 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>石油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>2021-01-05 01:11:21</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="2pwj3jq" 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="3ik32k2" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="onp3dpz" class="box"><p><p style="text-indent:25px">原子吸收分光光度計(jì)安全使用的前提條件：原子吸收分光光度計(jì)是基于從光源中輻射出的待測元素的特征光波通過樣品的原子蒸氣時(shí)，被蒸氣中待測元素的基態(tài)原子所吸收，使通過的光波強(qiáng)度削弱，依據(jù)光波強(qiáng)度削弱的程度，可以求出樣品中待測元素的含量。利用待測元素的共振輻射，石油原子吸收分光光度計(jì)儀器，通過其原子蒸汽，測定其吸光度的裝置稱為原子吸收分光光光源，原子化器，光學(xué)系統(tǒng)和檢測系統(tǒng)。它主要用于痕量元素雜質(zhì)的分析，具有靈敏度高、精確度好和選擇性好三大主要優(yōu)點(diǎn)。多應(yīng)用于特種氣體，金屬有機(jī)化合物，金屬醇鹽中微量元素的分析，石油原子吸收分光光度計(jì)儀器，石油原子吸收分光光度計(jì)儀器。但是測定每種元素均需要相應(yīng)的空心陰極燈，這對檢測工作帶來不便。原子吸收分光光度計(jì)計(jì)算機(jī)數(shù)據(jù)處理系統(tǒng)使整個分析實(shí)現(xiàn)自動化。石油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="石油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/ydfx123/637419991268710095/3209448.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。實(shí)驗(yàn)室原子吸收分光光度計(jì)報(bào)價(jià)原子吸收分光光度計(jì)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。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="石油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。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)運(yùn)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(jì)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(fù)，因而實(shí)際效果抱負(fù)的元素*30余個；因?yàn)閮x器運(yùn)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(hù)下，還原性氣氛的石墨管內(nèi)進(jìn)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(shí)刻長，因而管內(nèi)自在原子密度高，肯定靈敏度達(dá)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。原子吸收分光光度計(jì)汞(Hg)可用冷原子吸收法測定。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="石油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/ydfx123/637419988105282341/1372565.png"></div><p style="text-indent:25px">原子吸收分光光度計(jì)職業(yè)開展現(xiàn)狀剖析：通過一代科學(xué)技能工作者的努力，現(xiàn)在，我國已經(jīng)成功地掌握了原子吸收光譜儀的設(shè)計(jì)、生產(chǎn)技能。在火焰剖析方面，與國外同類型儀器比較，國產(chǎn)儀器的典型元素檢出達(dá)到相同水平，甚至超過國外。但由于我國在新產(chǎn)品研討開發(fā)方面投入缺乏，使國產(chǎn)儀器在自動化程度和長時(shí)間工作可靠性方面還有不少距離，尤其是石墨爐剖析技能不同更大。為了改變這一落后面貌，北京、上海等地的企業(yè)及研討所著重投入資金用于無火焰石墨爐技能的研討開發(fā)，在剖析重復(fù)性與元素檢出限等方面取得不少發(fā)展，并有新產(chǎn)品推出。原子吸收分光光度計(jì)應(yīng)用也有一定的局限性。實(shí)驗(yàn)室原子吸收分光光度計(jì)報(bào)價(jià)</p><p style="text-indent:25px">原子吸收分光光度計(jì)氧化亞氮—乙炔火焰安全性較差。石油原子吸收分光光度計(jì)儀器</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會有苦味;Cu對心病影響很大;水中Cu超標(biāo)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(jià)格便宜、性價(jià)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(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。石油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)?！疽婪毥?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】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)?！疽婪毥?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】的公司，致力于發(fā)展為創(chuàng)新務(wù)實(shí)、誠實(shí)可信的企業(yè)。儀電分析深耕行業(yè)多年，始終以客戶的需求為向?qū)В瑸榭蛻籼峁?**的分光光度計(jì)，氣相色譜，原子吸收，食品安全。儀電分析始終以本分踏實(shí)的精神和必勝的信念，影響并帶動團(tuán)隊(duì)取得成功。儀電分析創(chuàng)始人湯志東，始終關(guān)注客戶，創(chuàng)新科技，竭誠為客戶提供良好的服務(wù)。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2704349.html</p></div></div></div></div></div><div id="8jldfmo" class="page-right twoColRt"><div id="cmew77m" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="3uw2nub" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img 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