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href="http://www.cdcfah.com/cp/third-fenxiyiqi_ysfxyq/">元素分析儀器</a>?氮?dú)庠游辗止夤舛扔?jì)廠家服務(wù)為先上海儀電分析儀器供應(yīng)</p><div id="4jgik4d" class="leftbox clearfix"><h1>氮?dú)庠游辗止夤舛扔?jì)廠家服務(wù)為先上海儀電分析儀器供應(yīng)</h1><div id="xr3bve7" class="proBig"><div id="tsbseyp" 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="rgxzlhj" 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="8yfcegi" 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>氮?dú)庠游辗止夤舛扔?jì)廠家,原子吸收分光光度計(jì)</p><p><span>***更新：</span>2020-12-25 05:15:39</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="eiu7jdk" 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="2nu7fmy" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="r3m7ifm" class="box"><p><p style="text-indent:25px">原子吸收分光光度計(jì)翻開乙炔鋼瓶總閥，查看是否漏氣，長按焚燒開關(guān)，直至焚燒成功。將進(jìn)樣管放到裝有規(guī)范空白溶液的試劑瓶中，氮?dú)庠游辗止夤舛扔?jì)廠家，點(diǎn)擊"開端"按鈕，把進(jìn)樣管放到不同的試劑瓶中吸取對應(yīng)的溶液，并點(diǎn)擊"讀數(shù)"按鈕，點(diǎn)擊"打印機(jī)"按鈕，設(shè)置對應(yīng)的參數(shù)，并點(diǎn)擊"打印預(yù)覽"按鈕，點(diǎn)擊打印。挑選主界面的Worksheet按鈕，挑選剖析菜單，點(diǎn)擊"火焰實(shí)用工具"按鈕，點(diǎn)擊"封閉元素?zé)?按鈕。封閉乙炔氣閥，焚燒，把管道中殘缺的乙炔焚燒完。封閉空氣壓縮機(jī)，氮?dú)庠游辗止夤舛扔?jì)廠家，封閉排水。封閉軟件，點(diǎn)擊"文件"按鈕，點(diǎn)擊"封閉所有文件"按鈕，氮?dú)庠游辗止夤舛扔?jì)廠家，點(diǎn)擊"EXIT"按鈕。封閉儀器主機(jī)電源，封閉通風(fēng)器?；鹧嬖游辗止夤舛扔?jì)對大多數(shù)元素有較高靈敏度。氮?dú)庠游辗止夤舛扔?jì)廠家</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="氮?dú)庠游辗止夤舛扔?jì)廠家,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。氮?dú)庠游辗止夤舛扔?jì)廠家很長一段時(shí)間，原子吸收主要局限于天體物理方面的研究。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="氮?dú)庠游辗止夤舛扔?jì)廠家,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">原子吸收分光光度計(jì)作業(yè)曲線一向不穩(wěn)定，熒光值穩(wěn)定性差，讀書單方向加大或削減，或停止一會后持續(xù)作業(yè)，讀數(shù)變大超差?？赡苄纬傻脑蚴菬衾匣?，空心陰方燈不穩(wěn)，發(fā)射光的強(qiáng)度有隨溫度增高而加大或變小的漂移現(xiàn)象，消除的辦法是用反向電流予以激發(fā)，改進(jìn)性能，激發(fā)無效果，予以換燈。此外，鹽酸、容器、水污染，取主規(guī)范溶液時(shí)的偶然誤差也是形成作業(yè)曲線線性關(guān)系差的原因。電壓缺乏，點(diǎn)火電路絲氧化變細(xì)，KBH4寄存時(shí)間過久或量少，樣品溶液酸度不夠。掃除辦法是使用穩(wěn)壓器確保220V供電，替換電爐絲，從頭配制KBH4，調(diào)大鹽酸濃度。</p><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(shí)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(shí)際效果理想的元素*30余個(gè)；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(jì)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(zhuǎn)換器及相應(yīng)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(jì)和電熱原子化器?；鹧嬗卸喾N火焰，目前普遍應(yīng)用的是空氣—乙炔火焰?；鹧嬖游辗止夤舛扔?jì)應(yīng)用多。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="氮?dú)庠游辗止夤舛扔?jì)廠家,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">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。原子吸收光譜分析工作原理：利用待測元素的共振輻射。氮?dú)庠游辗止夤舛扔?jì)廠家</p><p style="text-indent:25px">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。氮?dú)庠游辗止夤舛扔?jì)廠家</p><p style="text-indent:25px">原子吸收分光光度計(jì)使用的首要限制是：該法只能進(jìn)行無機(jī)元素的含量剖析，不能直接用于有機(jī)化合物的含量剖析和結(jié)構(gòu)剖析;別的，慣例原子吸收分光光度計(jì)每測一種元素，要替換一次空心陰極燈光源，不能同時(shí)進(jìn)行多元素剖析。所用儀器為原子吸收分光光度計(jì)，它由光源、原子化器、單色器、背景校正系統(tǒng)、自動進(jìn)樣系統(tǒng)和檢測系統(tǒng)等組成。原子吸收分光光度計(jì)通常人體所需的常量或痕量元素以必定的濃度散布在人的體液和各種中，在人的生活動中起著不可或缺的作用，其主要生理功能是構(gòu)成人體的組成部分，也是酶和維生素的組成部分。氮?dú)庠游辗止夤舛扔?jì)廠家</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，以科技創(chuàng)新實(shí)現(xiàn)***管理的追求。儀電分析擁有一支經(jīng)驗(yàn)豐富、技術(shù)創(chuàng)新的專業(yè)研發(fā)團(tuán)隊(duì)，以高度的專注和執(zhí)著為客戶提供分光光度計(jì)，氣相色譜，原子吸收，食品安全。儀電分析繼續(xù)堅(jiān)定不移地走高質(zhì)量發(fā)展道路，既要實(shí)現(xiàn)基本面穩(wěn)定增長，又要聚焦關(guān)鍵領(lǐng)域，實(shí)現(xiàn)轉(zhuǎn)型再突破。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/2553289.html</p></div></div></div></div></div><div id="7ls2ac7" class="page-right twoColRt"><div id="cmtv8co" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="w82xj2k" 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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