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class="leftbox clearfix"><h1>國產(chǎn)**原子吸收分光光度計多少錢來電咨詢上海儀電分析儀器供應(yīng)</h1><div id="gfmbkmj" class="proBig"><div id="ncjg2d7" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/ydfx123/637419988163192494/7997740.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="vyaxb7d" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/ydfx123/637419988163192494/7997740.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="lfceg87" 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>國產(chǎn)**原子吸收分光光度計多少錢,原子吸收分光光度計</p><p><span>***更新：</span>2021-01-29 09:15:35</p><p><span id="click" >瀏覽次數(shù)：2次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="sln28fu" 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="vewtqxz" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="bqivxeq" class="box"><p><p style="text-indent:25px">原子吸收分光光度法常使用哪些定量分析方法?規(guī)范曲線法：先配制相同基體的含有不同濃度待測元素的系列規(guī)范溶液，在選定的實驗條件下分別測其吸光度.以扣除空白值之后的吸光度為縱坐標(biāo)，規(guī)范溶液濃度為橫坐標(biāo)繪制規(guī)范曲線。在同樣操作條件下測定試樣溶液的吸光度，從規(guī)范曲線查得試樣溶液的濃度。運(yùn)用該辦法時應(yīng)留意：配制的規(guī)范溶液濃度應(yīng)在吸光度與濃度成線性的范圍內(nèi)；整個剖析過程中操作條件應(yīng)堅持不變。另外，國產(chǎn)**原子吸收分光光度計多少錢，國產(chǎn)**原子吸收分光光度計多少錢，規(guī)范曲線法固然簡單，但必需保證規(guī)范樣品與試樣的物理性質(zhì)相同，保證不存在干擾物，國產(chǎn)**原子吸收分光光度計多少錢，關(guān)于組成尚不分明的樣品不能用規(guī)范曲線法。原子吸收分光光度計計算機(jī)數(shù)據(jù)處理系統(tǒng)使整個分析實現(xiàn)自動化。國產(chǎn)**原子吸收分光光度計多少錢</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="國產(chǎn)**原子吸收分光光度計多少錢,原子吸收分光光度計" 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與紫外可見分光光度計的區(qū)別：1、標(biāo)準(zhǔn)溶液:原子吸收分光光度計使用的標(biāo)準(zhǔn)溶液在4℃溫度下可保存較長時間，放置室溫后可正常使用。紫外可見分光光度計樣品及標(biāo)準(zhǔn)溶液顯色穩(wěn)定后需在半小時之內(nèi)測定，且對溫度及時間要求比較苛刻。2、檢測時間:原子吸收分光光度計分析速度較快，操作簡便，半個小時內(nèi)能連續(xù)測定幾十個試樣中的5、6種元素。紫外可見分光光度計由于有顯色過程，測量時間相對而言較長，操作比較麻煩。3、應(yīng)用對象：原子吸收分光光度計針對于金屬微量元素的定量分析，火焰法：液樣含量范圍通常在0。1PPM~15PPM之間（個別元素如錫會高些）；石墨爐分析在火焰法的基礎(chǔ)上則能提高2~3個數(shù)級，即液樣含量范圍通常在0。001PPM~0。100PPM之間。紫外可見分光光度計分析含量范圍一般在1PPM以上，主要分析高含量的樣品。4、操作性：原子吸收分光光度計操作簡單,對化驗員要求比較低，干擾低。紫外可見分光光度計樣品處理極為復(fù)雜,對化驗員要求比較高。國產(chǎn)原子吸收分光光度計廠家原子吸收分光光度計測定的元素可達(dá)70多種。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="國產(chǎn)**原子吸收分光光度計多少錢,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">原子吸收分光光度計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后同樣會生銹，從而造成汽化樣品因受阻而流通不暢，使測試靈敏度降低。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，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，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">原子吸收分光度計分析樣品優(yōu)點(diǎn)：⑴靈敏度高。采用火焰原子化方式，大多元素的靈敏度可達(dá)ppm級，少數(shù)元素可達(dá)ppb級，原子吸收分光度計若用高溫石墨爐原子化，其靈敏度可達(dá)10-10-10-14g，因此，原子吸收光譜法極適用于痕量金屬分析。⑵選擇性好。由于原子吸收線比原子發(fā)射線少得多，因此，本法的光譜干擾少，加之采用單元素制成的空芯陰極燈作銳線光源，光源輻射的光譜較純，對樣品溶液中被測元素的共振線波長處不易產(chǎn)生背景發(fā)射干擾。⑶操作方便、快速。原子吸收光譜分析與分光光度分析極為類似，其儀器結(jié)構(gòu)、原理也大致相同，原子吸收分光度計因此對于長期從事化學(xué)分析的人使用原子吸收儀器極為方便，火焰原子吸收分析的速度也較快?；鹧嬖游辗止夤舛扔媽Υ蠖鄶?shù)元素有較高靈敏度。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="國產(chǎn)**原子吸收分光光度計多少錢,原子吸收分光光度計" src="https://tyunfile.71360.com/WaterMark/UploadFile/ydfx123/637419988085019176/8464581.png"></div><p style="text-indent:25px">原子吸收分光光度計能檢測哪些元素：1、堿金屬檢測：堿金屬（Li，Na，K，Rb，Cs）是用原子吸收分光光度法測定的靈敏度比較高的一類元素。堿金屬的沸點(diǎn)較低，通過火焰區(qū)能立刻蒸發(fā)產(chǎn)生背景吸收。2、堿土金屬檢測：堿土金屬元素（Be，Mg，Ca，Sr，Ba）在火焰中易生成氧化物和少量的MOH型化合物，原子化效率強(qiáng)烈地依賴于火焰組成和火焰高度，因此，必須仔細(xì)地控制燃?xì)夂椭細(xì)獾谋壤?，恰?dāng)?shù)卣{(diào)節(jié)燃燒器的高度。3、有色金屬檢測：這一組元素包括Cu，Zn，Cd，Hg，Sn，Pb，Sb，Bi等。4、黑色金屬檢測：這一組元素包括Fe，Ni，Cr，Mo，Mn等。在合金中，這些元素常共存在一起。5、貴金屬檢測：貴金屬在某些試樣中含量比較低，一般要經(jīng)過化學(xué)富集之后才能進(jìn)行檢測。6、難熔元素檢測：這組元素包括B，Be，Si，Ge，V，Nb，Ta，W，Th，U，Re，Sc，Y和稀土元素。它們?nèi)菀仔纬呻y離解的耐熔氧化物，必須在強(qiáng)還原性空氣—乙炔火焰中進(jìn)行測定。完成試樣原子化所用的設(shè)備稱為原子化器或原子化系統(tǒng)。國產(chǎn)**原子吸收分光光度計多少錢</p><p style="text-indent:25px">原子吸收分光光度計精密度1%左右。國產(chǎn)**原子吸收分光光度計多少錢</p><p style="text-indent:25px">原子吸收分光光度計安全操作須知：儀器點(diǎn)火前必須進(jìn)行以下項目的安全檢查。1、燃?xì)鈿饴访荛]性：打開氣瓶總閥后迅速關(guān)閉，觀察3分鐘內(nèi)氣表壓降應(yīng)小于0.IMpa；2、燃燒頭：確認(rèn)燃燒頭己安裝、且緊密到位；3、水封檢測：無液位檢測裝置儀器，廢液管的繞環(huán)中必須有存液且液體能夠封住管路；有液位檢測裝置儀器，向液位檢測裝置中加水，廢液管中應(yīng)有液體流出；4、空壓機(jī)：空壓機(jī)輸出壓力應(yīng)大于0.2MPa，霧化室內(nèi)應(yīng)有氣流聲；5、防爆塞：確認(rèn)防爆塞已安裝、且壓緊。6、緊急滅火開關(guān)：當(dāng)按下緊急滅火按鈕后，按鈕變亮，火焰熄滅。霧化器狀態(tài)檢查：打開空壓機(jī)達(dá)到工作壓力后吸噴蒸餾水，燃燒縫中應(yīng)有水霧噴出。7、乙炔報警板功能檢查：儀器通電2分鐘后，用洗耳球吸取飽和的酒精氣體（酒精濃度＞99%）,對準(zhǔn)儀器背面測試孔或散熱孔，將酒精氣體吹入儀器內(nèi)部，2分鐘內(nèi)儀器應(yīng)發(fā)出報瞥蜂鳴聲。若未發(fā)出報警聲，請聯(lián)系當(dāng)?shù)毓こ處熥稍兙唧w情況。國產(chǎn)**原子吸收分光光度計多少錢</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/3065328.html</p></div></div></div></div></div><div id="jya7v7u" class="page-right twoColRt"><div id="87a22pm" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="mg7qyah" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img 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