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id="t2drmo7" 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="vvi7g3z" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="3neq2gn" class="box"><p><p style="text-indent:25px">原子吸收分光光度計的工作流程：以測定試液中鎂離子的含量為例，先將試液噴射成霧狀并引入到火焰中，含鎂鹽的霧滴在火焰溫度下，蒸發(fā)、離解成鎂原子形成原子蒸氣。當(dāng)用鎂的空心陰極燈作光源，它便輻射出具有波長為285，專業(yè)原子吸收分光光度計賣價，專業(yè)原子吸收分光光度計賣價.2nm的鎂的特征光譜(波)，當(dāng)其通過火焰中一定厚度的鎂原子蒸氣時，專業(yè)原子吸收分光光度計賣價，部分光被蒸氣中基態(tài)鎂原子所吸收而使強(qiáng)度有所減弱。通過單色器分光后被檢測器接受，檢測器測得鎂的285.2nm譜線光的減弱程度，進(jìn)而即可求出試樣中鎂的含量。原子吸收分光度計分析樣品優(yōu)點：抗干擾能力強(qiáng)。專業(yè)原子吸收分光光度計賣價</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="專業(yè)原子吸收分光光度計賣價,原子吸收分光光度計" 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與紫外可見分光光度計的區(qū)別：1、原理：原子吸收觀察的是構(gòu)成物質(zhì)的元素（原子）中的電子在原子軌道中的躍遷，屬于原子吸收。紫外可見光吸收觀察的是構(gòu)成物質(zhì)的分子中的電子在分子軌道中的躍遷，屬于分子吸收。2、能量:兩者有所同，又有所不同。定量分析的原則同，而測量所需的光能量不同：原子吸收為X射線，能量大，可激發(fā)電子從低的原子軌道向高的原子軌道躍遷。紫外可見吸收為紫外光及可見光，能量小，只能激發(fā)電子從分子軌道向較低（或次低）的空的分子軌道躍遷。通俗的說，原子吸收分光光度計是用較高的溫度來燃燒分子，使之原子化（變?yōu)榛鶓B(tài)原子），再通過特征輻射，把基態(tài)原子激發(fā)，并吸收能量，通過這個能量差（透過率）來計算出濃度。而紫外—可見分光光度計是通過顯色劑（一種能和我們被測元素產(chǎn)生絡(luò)合反應(yīng)的分子），與我們的被測元素產(chǎn)生反應(yīng)，并且反應(yīng)物分子帶有特定的顏色，經(jīng)過分子吸收氘燈（紫外區(qū)）或鎢燈（可見區(qū)）的照射，吸收燈發(fā)射的能量，通過能量差（透過率）來計算出濃度。教學(xué)原子吸收分光光度計生產(chǎn)廠家原子吸收分光光度計安全操作須知：注意不能讓氣瓶的溫度超過40°C，并且2m之內(nèi)不得有明火。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="專業(yè)原子吸收分光光度計賣價,原子吸收分光光度計" src="https://tyunfile.71360.com/WaterMark/UploadFile/ydfx123/637419991268710095/3209448.png"></div><p style="text-indent:25px">我國原子吸收商品儀器的生產(chǎn)已有30年，目前國內(nèi)外生產(chǎn)廠家有十多家，幾十種型號。對此，用戶要知己知彼。首先要明確購買儀器主要解決什么問題，分析要求是什么。因為不同的分析要求，對儀器的功能要求會有不同的側(cè)重，而任何一臺儀器也不是全能的。其次，是要考慮適用性和經(jīng)濟(jì)性。要結(jié)合自己的經(jīng)濟(jì)實力，技術(shù)水平和人員素質(zhì)選擇能滿足自己工作要求的型號。第三，對新組建原子光譜實驗室的用戶，還要注意必須有輔助設(shè)備的投入，如樣品的前處理設(shè)備的購置，實驗室環(huán)境條件的建設(shè)，如穩(wěn)壓電源、空調(diào)、清潔的房間以及地線等。有的用戶不注意這些基本條件的準(zhǔn)備，就匆匆購買儀器，結(jié)果儀器購買后長期不能投產(chǎn)，不能發(fā)揮儀器的效益。第四，注意人才培養(yǎng)，原子吸收光譜儀屬于大型精密儀器，樣品前處理以及操作相對較為復(fù)雜，建議用戶一定配備具有中專以上文化水平的人，較好是分析化學(xué)專業(yè)人才，如果這方面不注意，也不能使儀器盡快發(fā)揮作用。第五，售后服務(wù)要有保障，如安裝、培訓(xùn)、耗材的供給等等。</p><p style="text-indent:25px">原子吸收分光光度計的實際應(yīng)用：1．理論研究中的應(yīng)用：原子吸收可作為物理和物理化學(xué)的一種實驗手段，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)有比較多優(yōu)點。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、振子強(qiáng)度、光譜線輪廓的變寬、溶解度、蒸氣壓等。2．元素分析中的應(yīng)用：原子吸收光譜分析，由于其靈敏度高、干擾少、分析方法簡單快速，現(xiàn)已普遍地應(yīng)用于工業(yè)、農(nóng)業(yè)、生化、地質(zhì)、冶金、食品、環(huán)保等各個領(lǐng)域，目前原子吸收已成為金屬元素分析的強(qiáng)有力工具之一，而且在許多領(lǐng)域已作為標(biāo)準(zhǔn)分析方法。原子吸收光譜分析的特點決定了它在地質(zhì)和冶金分析中的重要地位，它不只取代了許多一般的濕法化學(xué)分析，而且還與X-射線熒光分析，甚至與中子活化分析有著同等的地位。原子吸收分光光度計原子化條件：程序升溫的條件選擇。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="專業(yè)原子吸收分光光度計賣價,原子吸收分光光度計" src="https://tyunfile.71360.com/WaterMark/UploadFile/ydfx123/637419991252020619/9480950.png"></div><p style="text-indent:25px">火焰原子吸收分光光度計使用的注意事項：1、應(yīng)放在干燥的房間內(nèi)，使用時放置在堅固平穩(wěn)的工作臺上，室內(nèi)照明不宜太強(qiáng)。熱天時不能用電扇直接向儀器吹風(fēng)，防止燈泡燈絲發(fā)亮不穩(wěn)定。2、為了防止光電管疲勞，不測定時必須將試樣室蓋打開，使光路切斷，以延長光電管的使用壽命。、取拿比色皿時，手指只能捏住比色皿的毛玻璃面，而不能碰比色皿的光學(xué)表面。4、比色皿不能用堿溶液或氧化性強(qiáng)的洗滌液洗滌，也不能用毛刷清洗。比色皿外壁附著的水或溶液應(yīng)用擦鏡紙或細(xì)而軟的吸水紙吸干，不要擦拭，以免損傷它的光學(xué)表面。5、使用光度計前，應(yīng)該首先了解本儀器的結(jié)構(gòu)和工作原理，以及各個操縱旋鈕之功能。在未按通電源之前，原子吸收分光光度計應(yīng)該對火焰原子吸收分光光度計的安全性能進(jìn)行檢查，電源接線應(yīng)牢固，通電也要良好，各個調(diào)節(jié)旋鈕的起始位置應(yīng)該正確，然后再按通電源開關(guān)。6、長期不用時，需用將儀器使用防護(hù)罩罩住。原子吸收分光光度計安全操作須知：禁止在儀器附近抽煙或使用明火。雙光束原子吸收分光光度計廠家供應(yīng)</p><p style="text-indent:25px">原子吸收光譜分析工作原理：利用待測元素的共振輻射。專業(yè)原子吸收分光光度計賣價</p><p style="text-indent:25px">儀器儀表行業(yè)本身是一個加入，產(chǎn)出周期較長的行業(yè)，所以作為業(yè)內(nèi)廠家，一方面要尋找中、短期市場熱點，另一方面也要在產(chǎn)品、技術(shù)研發(fā)方面有長遠(yuǎn)的規(guī)劃;中國的新型工業(yè)化進(jìn)程，信息化和工業(yè)化融合的進(jìn)一步加深，帶動各個工業(yè)領(lǐng)域?qū)τ诜止夤舛扔嫞瑲庀嗌V，原子吸收，食品安全等產(chǎn)品的需求。中國儀器儀表行業(yè)目前正處于高速發(fā)展階段，需要與之相適應(yīng)的儀器儀表、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)的項目，經(jīng)相關(guān)部門批準(zhǔn)后方可開展經(jīng)營活動】產(chǎn)品營銷模式相互配合。盡管在我國相關(guān)政策的引導(dǎo)和支持下，我國儀器儀表行業(yè)得到了飛速發(fā)展。但是從銷售整體上看，我國的儀器儀表行業(yè)還是落后于國際水平的。重點技術(shù)缺乏、高精尖產(chǎn)品嚴(yán)重依賴進(jìn)口、儀器儀表產(chǎn)品同質(zhì)化嚴(yán)重、生產(chǎn)工藝落后、研發(fā)能力弱、精度不高等問題的凸顯，為儀器儀表行業(yè)的發(fā)展帶來了嚴(yán)峻的挑戰(zhàn)。專業(yè)原子吸收分光光度計賣價</p></p><br /><p>文章來源地址: http://m.cdcfah.com/cp/3079683.html</p></div></div></div></div></div><div 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