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#f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>甲醇原子吸收分光光度計(jì)廠家供應(yīng),原子吸收分光光度計(jì)</p><p><span>***更新：</span>2021-02-06 06:11:07</p><p><span id="click" >瀏覽次數(shù)：6次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="7bipugb" 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(hào)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="quipprn" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="i7gsdf3" class="box"><p><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(zhǎng)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(qǐng)您隨時(shí)留意，一旦發(fā)生異味，請(qǐng)當(dāng)即切斷電源，關(guān)掉乙炔鋼瓶總閥門，甲醇原子吸收分光光度計(jì)廠家供應(yīng)。請(qǐng)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)生回火爆開，甲醇原子吸收分光光度計(jì)廠家供應(yīng)。5、每次燃燒前檢查廢液管是否打好水封；確認(rèn)水封無誤時(shí)方可開機(jī)燃燒。6，甲醇原子吸收分光光度計(jì)廠家供應(yīng)、乙炔鋼瓶放置在接近儀器室的房間內(nèi)，保持空氣流通，并應(yīng)有防火標(biāo)識(shí)。7、必定要運(yùn)用的乙炔專屬減壓閥，并裝有防回火設(shè)備。將試樣中待測(cè)元素變成氣態(tài)的基態(tài)原子的過程稱為試樣的“原子化”。甲醇原子吸收分光光度計(jì)廠家供應(yīng)</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="甲醇原子吸收分光光度計(jì)廠家供應(yīng),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">調(diào)整熄滅器位置的目的在于使其縫口平行于外光路的光軸并位于正下方,以保證空心陰極燈的光束完整經(jīng)過火焰并集聚于火焰中心而取得較高的靈活度。熄滅器的調(diào)整是在靜態(tài)下停止的。常以銅燈(324.1nm)作光源,按前述調(diào)整好燈的位置,調(diào)理負(fù)高壓,使透射比為1：100％，然后用儀器附帶的透光檢驗(yàn)工具或一根火柴棒插入熄滅器縫口里。當(dāng)對(duì)光棒直立在熄滅器縫口的正中心時(shí),透射比應(yīng)接近0%,否則仍需對(duì)熄滅器位置作前后調(diào)整，然后拍對(duì)光棒垂直置于縫口兩端,其透射比應(yīng)降至30%,否則應(yīng)改動(dòng)熄滅器轉(zhuǎn)角直至到達(dá)請(qǐng)求為止。當(dāng)靜態(tài)調(diào)整終了之后,若有必要,可在點(diǎn)火的狀況下,吸噴銅規(guī)范溶液,調(diào)整熄滅器的前后轉(zhuǎn)角及其高度，丈量不同位置時(shí)的吸光度。對(duì)應(yīng)予大吸光度的位置為位置,但熄滅器不應(yīng)擋光。由于不同元素的熄滅器高度是不同的，運(yùn)用時(shí)應(yīng)依據(jù)不同的元素重新調(diào)理熄滅器高度。學(xué)校原子吸收分光光度計(jì)對(duì)比原子吸收分光光度計(jì)型號(hào)繁多，不同型號(hào)儀器性能和應(yīng)用范圍不同。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="甲醇原子吸收分光光度計(jì)廠家供應(yīng),原子吸收分光光度計(jì)" src="https://tyunfile.71360.com/WaterMark/UploadFile/ydfx123/637419988163192494/7997740.png"></div><p style="text-indent:25px">原子吸收分光光度計(jì)常見的故障解決方法：1、故障現(xiàn)象：燃燒器底座不光潔，造成汽化的樣品被阻擋，影響靈敏度。產(chǎn)生原因：一般燃燒器均是由上蓋部分（燃燒縫也在此處）和底座結(jié)合而成，但是，當(dāng)?shù)鬃暗鬃鼙诒桓g后同樣會(huì)生銹，從而造成汽化樣品因受阻而流通不暢，使測(cè)試靈敏度降低。排除方法：與清潔燃燒縫的方法一樣，用1000目水砂紙打磨底座和底座管壁。2、故障現(xiàn)象：冷卻循環(huán)水溫度過低，致使燃燒縫結(jié)露造成不易點(diǎn)火或火焰分叉故障。產(chǎn)生原因：當(dāng)冷卻循環(huán)水的溫度遠(yuǎn)遠(yuǎn)低于室內(nèi)溫度時(shí)，燃燒器的溫度同樣低于室內(nèi)溫度，于是，當(dāng)被汽化的樣品經(jīng)過燃燒縫時(shí)，比較多樣品因受急速降溫所形成的水珠被潴留在縫</p><p style="text-indent:25px">原子吸收分光光度計(jì)利用待測(cè)元素的共振輻射，原子吸收分光光度計(jì)價(jià)格通過其原子蒸汽，測(cè)定其吸光度的裝置稱為原子吸收分光光度計(jì)。原子吸收分光光度計(jì)價(jià)格它有單光束，雙光束，雙波道，多波道等結(jié)構(gòu)形式。其基本結(jié)構(gòu)包括光源，原子化器，光學(xué)系統(tǒng)和檢測(cè)系統(tǒng)。它主要用于痕量元素雜質(zhì)的分析，具有靈敏度高及選擇性好兩大主要優(yōu)點(diǎn)。普遍應(yīng)用于各種氣體，金屬有機(jī)化合物，金屬醇鹽中微量元素的分析。但是測(cè)定每種元素均需要相應(yīng)的空心陰極燈，這對(duì)檢測(cè)工作帶來不便。原子吸收分光度計(jì)分析樣品優(yōu)點(diǎn)：選擇性好。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="甲醇原子吸收分光光度計(jì)廠家供應(yīng),原子吸收分光光度計(jì)" src="https://tyunfile.71360.com/WaterMark/UploadFile/ydfx123/637419991236161257/4858141.png"></div><p style="text-indent:25px">理論研討和實(shí)驗(yàn)結(jié)果標(biāo)明，干擾的大小取決于吸收線堆疊水平，干擾元素的濃度及其靈活度。當(dāng)兩種元素的吸收線的波長(zhǎng)差小于0.03nm時(shí)，則以為吸收線堆疊干擾是嚴(yán)重的。若堆疊的吸收線是靈活線，即便相差0.1nm，干擾也會(huì)明顯表現(xiàn)出來。當(dāng)然這種干擾還和干擾元素的濃度及單色儀的分辨率有關(guān)。有一些譜線，在理論上是堆疊線，但實(shí)驗(yàn)中并沒有察看到干擾。有可能是干擾元素在測(cè)定條件下原子化效率低而未能產(chǎn)生足夠的基態(tài)原子，也可能這些干擾元素的吸收線靈活度比較低，所以在通常狀況下表現(xiàn)不出來。消弭這種干擾普通是選用其它的剖析線或預(yù)別離干擾元素?；鹧嬖游展庾V儀使用光源大都是空心陰極燈，空心陰極燈的燈電流大小決定著燈輻射強(qiáng)度。甲醇原子吸收分光光度計(jì)生產(chǎn)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。甲醇原子吸收分光光度計(jì)廠家供應(yīng)</p><p style="text-indent:25px">原子吸收分光光度計(jì)原子化條件：(1)火焰類型和特性:在火焰原子化法中，火焰類型和特性是影響原子化效率的主要因素。對(duì)低、中溫元素，使用空氣-乙炔火焰;對(duì)高溫元素，宜采用氧化亞氮-乙炔高溫火焰;對(duì)分析線位于短波區(qū)(200nm以下)的元素，使用空氣-氫火焰是合適的。對(duì)于確定類型的火焰，稍富燃的火焰(燃?xì)饬看笥诨瘜W(xué)計(jì)量)是有利的。對(duì)氧化物不十分穩(wěn)定的元素如Cu、Mg、Fe、Co、Ni等，用化學(xué)計(jì)量火焰(燃?xì)馀c助燃?xì)獾谋壤c它們之間化學(xué)反應(yīng)計(jì)量量相近)或貧燃火焰(燃?xì)饬啃∮诨瘜W(xué)計(jì)量)也是可以的。為了獲得所需特性的火焰，需要調(diào)節(jié)燃?xì)馀c助燃?xì)獾谋壤?2)燃燒器的高度選擇:在火焰區(qū)內(nèi)，自由原子的空間分布是不均勻，且隨火焰條件而改變，因此，應(yīng)調(diào)節(jié)燃燒器的高度，以使來自空心陰極燈的光束從自由原子濃度較大的火焰區(qū)域通過，以期獲得高的靈敏度。甲醇原子吸收分光光度計(jì)廠家供應(yīng)</p></p><br /><p>文章來源地址: http://m.cdcfah.com/cp/3188858.html</p></div></div></div></div></div><div id="8c2w7if" class="page-right twoColRt"><div id="ds7mc8z" class="box01 margin10 clearfix"><h3><a href="http://m.cdcfah.com/cp/">猜你喜歡</a></h3><div id="2jdudsd" class="recomPic likePro"><a href="http://m.cdcfah.com/cp/814588.html"><div><img src="http://tyunfile.71360.com/UpLoadFile/2019/11/1/14/637082168864691056_lgpj_5374157.jpg" 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