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src="https://tyunfile.71360.com/WaterMark/UploadFile/ydfx123/637419988105282341/1372565.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="jr8oy4e" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/ydfx123/637419988105282341/1372565.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="qtttv4p" 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(guān)鍵詞：</span>化工原子吸收分光光度計(jì)生產(chǎn)廠家,原子吸收分光光度計(jì)</p><p><span>***更新：</span>2021-01-04 01:12:39</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="ehnd7uv" 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="gokk98w" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="fyj8apu" class="box"><p><p style="text-indent:25px">原子吸收光譜儀配件的根本原理儀器從光源輻射出具有待測元素特征譜線的光，經(jīng)過試樣蒸氣時被蒸氣中待測元素基態(tài)原子所吸收，由輻射特征譜線光被削弱的程度來測定試樣中待測元素的含量。原子吸收光譜儀配件的使用因原子吸收光譜儀的活絡(luò)、準(zhǔn)確、簡潔等特點(diǎn)，現(xiàn)已多用于冶金、地質(zhì)、采礦、石油、輕工、農(nóng)業(yè)、醫(yī)藥、衛(wèi)生，化工原子吸收分光光度計(jì)生產(chǎn)廠家，化工原子吸收分光光度計(jì)生產(chǎn)廠家、食物及環(huán)境監(jiān)測等方面的常量及微痕量元素剖析。原子吸收光譜法是根據(jù)從光源發(fā)射的待測元素的特征輻射經(jīng)過樣品蒸氣時,被蒸氣中待測元素的基態(tài)原子所吸收，化工原子吸收分光光度計(jì)生產(chǎn)廠家,根據(jù)輻射強(qiáng)度的削弱程度以求得樣品中待測元素的含量。石墨爐原子吸收分光光度計(jì)，可以測定近50種元素?；ぴ游辗止夤舛扔?jì)生產(chǎn)廠家</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="化工原子吸收分光光度計(jì)生產(chǎn)廠家,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">通常情況下，原子處于基態(tài)。當(dāng)相當(dāng)于原子中的電子由基態(tài)躍遷到激發(fā)態(tài)所需求的輻射頻率經(jīng)過原子蒸氣，原子就能從入射輻射中吸收能量，發(fā)生共振吸收，然后發(fā)生吸收光譜。原子吸收剖析便是使用基態(tài)原子對特征輻射的吸收程度的，常使用強(qiáng)吸收線作為剖析線。原子吸收光譜儀由以下四部分組成光源系統(tǒng):空心陰燈原子化系統(tǒng):火焰原子化器;原子吸收分光光度計(jì)或氫化物發(fā)生器。分光系統(tǒng)：單色器檢測系統(tǒng)：光電倍增管等。原子吸收分光光度計(jì)的長處是:原子化效率高，在可調(diào)的高溫下試樣使用率達(dá)100，活絡(luò)度高，試樣用量少，適用于難熔元素的測定。缺陷是:試樣組成不均勻性的影響較大，測定度較低，共存化合物的攪擾比火焰原子化法大，攪擾布景比較嚴(yán)重，一般都需求校正布景。上海**原子吸收分光光度計(jì)設(shè)備原子吸收分光光度計(jì)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="化工原子吸收分光光度計(jì)生產(chǎn)廠家,原子吸收分光光度計(jì)" src="https://tyunfile.71360.com/WaterMark/UploadFile/ydfx123/637419991252020619/9480950.png"></div><p style="text-indent:25px">原子吸收分光光度計(jì)和ICP的比較：原理：原子吸收分光光度計(jì)：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(qiáng)，簡潔、快速。因?yàn)槠溥x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(qiáng)。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(yīng)用范圍廣?？蓽y60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(jī)化合物。</p><p style="text-indent:25px">原子吸收分光光度計(jì)噴口氣流通道阻塞：可取下撞擊球帽用反向氣流或水沖刷，也可用注射器灌水沖刷。噴口內(nèi)管或氣流通道被有機(jī)質(zhì)、積累的灰塵或干涸的鹽類等阻塞，可取下撞擊球帽將噴口刺進(jìn)加熱或發(fā)煙的硫酸－重鉻酸鉀溶液中幾秒鐘，冷后用水沖刷（留意：不行使洗液進(jìn)入霧化器內(nèi)部），運(yùn)用半年以上或發(fā)現(xiàn)流量削減，也應(yīng)照此處理。原子吸收分光光度計(jì)每次運(yùn)用結(jié)束，用蒸餾水吸噴2～3分鐘（不行用自來水防止溶液干涸阻塞）。工作室溫不行低于10度，不然噴口的降溫效果可使溶液結(jié)冰阻塞霧化器。原子吸收分光光度計(jì)對空心陰極燈發(fā)射的特征輻射進(jìn)行選擇性吸收。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="化工原子吸收分光光度計(jì)生產(chǎn)廠家,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)霧化器長處和故障處理：原子吸收分光光度計(jì)霧化器長處和毛病處理。1、限流進(jìn)液管阻塞，一般堵在進(jìn)口處，可用手指除掉，或用壓縮空氣反向吹通，或用注射器反向灌水。2.、吸入樣品溶液將盡時，管內(nèi)形成成串氣泡，阻力很大使吸入中止，用手指彈動進(jìn)液管，使氣泡吸走，即可正常，也可用注射器吸走氣泡。3、霧化器內(nèi)管阻塞：長堵在接近噴口處，取下撞擊球帽，用壓縮空氣或注射器反向灌水沖掉阻塞物，決不行用金屬絲捅，不然將損壞霧化器。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?；ぴ游辗止夤舛扔?jì)生產(chǎn)廠家</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。化工原子吸收分光光度計(jì)生產(chǎn)廠家</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(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?；ぴ游辗止夤舛扔?jì)生產(chǎn)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。儀電分析作為儀器儀表、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】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】的企業(yè)之一，為客戶提供良好的分光光度計(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。儀電分析始終關(guān)注儀器儀表行業(yè)。滿足市場需求，提高產(chǎn)品價值，是我們前行的力量。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2690177.html</p></div></div></div></div></div><div id="f8d8syz" class="page-right twoColRt"><div id="uzt3tje" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="r3hu93o" class="recomPic likePro"><a 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