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class="container clearfix tcPro"><section class="home-main container clearfix"><div id="1mtnebv" class="twoCol"><div id="onhj8dd" 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>?直讀原子吸收分光光度計(jì)單價(jià) 真誠推薦上海儀電分析儀器供應(yīng)</p><div id="r3jp8ln" class="leftbox clearfix"><h1>直讀原子吸收分光光度計(jì)單價(jià) 真誠推薦上海儀電分析儀器供應(yīng)</h1><div id="8j87xp8" class="proBig"><div id="wxu7qcw" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/ydfx123/637419988150712025/4463747.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="utvnk38" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/ydfx123/637419988150712025/4463747.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="3bif2bn" 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>直讀原子吸收分光光度計(jì)單價(jià),原子吸收分光光度計(jì)</p><p><span>***更新：</span>2021-01-21 01:10:58</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="l7ur8df" 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="h9k78zr" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="dpmjvxz" class="box"><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，直讀原子吸收分光光度計(jì)單價(jià)，直讀原子吸收分光光度計(jì)單價(jià)，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，直讀原子吸收分光光度計(jì)單價(jià)、振子強(qiáng)度、光譜線輪廓的變寬、溶解度、蒸氣壓等。1965年復(fù)旦大學(xué)電光源實(shí)驗(yàn)室和冶金工業(yè)部有色金屬研究所分別研制成功空心陰極燈光源。直讀原子吸收分光光度計(jì)單價(jià)</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="直讀原子吸收分光光度計(jì)單價(jià),原子吸收分光光度計(jì)" src="https://tyunfile.71360.com/WaterMark/UploadFile/ydfx123/637419988150712025/4463747.png"></div><p style="text-indent:25px">原子吸收分光光度計(jì)，所謂微量元素，在環(huán)境地球化學(xué)中，指*占地球組成部分的0.01的60余種元素，微量元素分析儀的合量一般在1×10-8~1×108。在醫(yī)學(xué)領(lǐng)域從人體結(jié)構(gòu)來看，占人體總重量萬分之一以下者即為微量元素。什么是需微量元素和條性微量元素從營養(yǎng)化學(xué)、毒理學(xué)和環(huán)境污染等研討角度出發(fā)將微量元素分紅需微量元素或營養(yǎng)微量元素和毒性微量元素。原子吸收分光光度計(jì)微量元素分析儀廠家生產(chǎn)的微量元素分析儀需徵量元素是指能維持人體正常功用或結(jié)構(gòu)所需的微量元素，每日只需攝入Q.01g以下，即能滿足人體生理功用的需求。空氣原子吸收分光光度計(jì)賣價(jià)原子吸收分光光度計(jì)測定的元素可達(dá)70多種。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="直讀原子吸收分光光度計(jì)單價(jià),原子吸收分光光度計(jì)" src="https://tyunfile.71360.com/WaterMark/UploadFile/ydfx123/637419991385859509/5179129.png"></div><p style="text-indent:25px">微量元素分析儀廠家生產(chǎn)的微量元素分析儀技術(shù)參數(shù)：1、設(shè)備裝備：雙通道譜、溶出同測工作站。2、檢測辦法：選用衛(wèi)生部規(guī)范辦法微分電位溶出法檢測鉛、銅、鎬；選用譜法檢測鋅、鐵、鈣、鎂、等微量元素。3、標(biāo)本：全血、血清、頭發(fā)。4、技術(shù)目標(biāo)電位溶出極譜。檢測下限<0.1μg/L【對Pb（l）】<5×10-8m0l/L重復(fù)性誤差RSD<3RSD<1校準(zhǔn)曲線的度RSD<8RSD<2線性關(guān)系R>0.9990R≥0.9990。5、可檢測鋅、鐵、鈣、鎂、鏢、鉛、銅、鎬八項(xiàng)微量元素。6、雙通道且可一同測量，一個(gè)通道檢測鉛銅，另一個(gè)通道檢測鋅鐵鈣鎂鏢。</p><p style="text-indent:25px">電熱原子化器普遍應(yīng)用的是原子吸收分光光度計(jì)，因而原子吸收分光光度計(jì)，就有原子吸收分光光度計(jì)和帶石墨爐的原子吸收分光光度計(jì)。前者原子化的溫度在2100℃～2400℃之間，后者在2900℃～3000℃之間。原子吸收分光光度計(jì)，利用空氣—乙炔測定的元素可達(dá)30多種，若使用氧化亞氮—乙炔火焰，測定的元素可達(dá)70多種。但氧化亞氮—乙炔火焰安全性較差，應(yīng)用不普遍?？諝狻胰不鹧嬖游辗止夤舛扔?jì)，一般可檢測到PPm級（10-6），精密度1%左右。國產(chǎn)的原子吸收分光光度計(jì)，都可配備各種型號的氫化物發(fā)生器（屬電加熱原子化器），利用氫化物發(fā)生器，可測定砷（As）、銻（Sb）、鍺（Ge）、碲（Te）等元素。一般靈敏度在ng/ml級（10-9），相對標(biāo)準(zhǔn)偏差2%左右。汞(Hg)可用冷原子吸收法測定。原子化器主要有兩大類，即原子吸收分光光度計(jì)和電熱原子化器。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="直讀原子吸收分光光度計(jì)單價(jià),原子吸收分光光度計(jì)" 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(jì)運(yùn)用也有一定的局限性，即每種待測元素都要有一個(gè)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(gè)；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)空氣—乙炔火焰原子吸收分光光度計(jì)。直讀原子吸收分光光度計(jì)單價(jià)</p><p style="text-indent:25px">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。直讀原子吸收分光光度計(jì)單價(jià)</p><p style="text-indent:25px">原子吸收分光光度計(jì)空心陰方燈的作業(yè)電流挑選：空心陰方燈一般需求預(yù)熱10-30min才干到達(dá)安穩(wěn)輸出。燈電流過小，放電不安穩(wěn)，故光譜輸出不安穩(wěn)，且光譜輸出強(qiáng)度??；燈電流過大，發(fā)射譜線變寬，導(dǎo)致靈敏度下降，校正曲線曲折，燈壽數(shù)縮短。選用燈電流的一般原則是，在保證有滿足強(qiáng)且安穩(wěn)的光強(qiáng)輸出條件下，盡量運(yùn)用較低的作業(yè)電流。通常以空心陰方燈上標(biāo)明的很大電流的一半至三分之二作為作業(yè)電流。在具體的剖析場合，很適宜的作業(yè)電流由實(shí)驗(yàn)確定。直讀原子吸收分光光度計(jì)單價(jià)</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2935129.html</p></div></div></div></div></div><div id="la8hoq7" class="page-right twoColRt"><div id="2ie3h37" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="tnumtvc" 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(qiáng) 信息推薦自業(yè)物資供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>福建ZF配件哪家強(qiáng) 信息推薦自業(yè)物資供應(yīng)</p></a></div><div 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