車載原子吸收分光光度計對比來電咨詢上海儀電分析儀器供應(yīng)-b2b網(wǎng)站_b2b電子商務(wù)平臺【買產(chǎn)品】-上?？谄蚴称酚邢薰?/title><meta name="description" content="原子吸收分光光度計常見的故障解決方法：故障現(xiàn)象：燃燒縫因生銹被腐蝕，車載原子吸收分光光度計對比，致使汽化的樣品不能全部被原子化，降低了靈敏度，車載原子吸收分光光度計對比。產(chǎn)生原因：液體樣品在噴霧器和撞擊球雙重作用下被汽化，車載原子吸收分光光"><meta name="keywords" content="車載原子吸收分光光度計對比,原子吸收分光光度計"><link rel="canonical" href="http://www.cdcfah.com/"/><meta name="applicable-device" content="pc"><link rel="shortcut icon" href="/static/new_net_01/images/favicon.ico"><link rel="stylesheet" href="/static/new_net_01/css/slick.css" /><link rel="stylesheet" href="/static/new_net_01/css/addnew.css"><link rel="stylesheet" href="/static/new_net_01/css/sidenav.css"><link rel="stylesheet" href="/static/new_net_01/css/style.css" /><link rel="stylesheet" href="/static/new_net_01/css/tab.css"><link rel="stylesheet" href="/static/new_net_01/css/404.css"> <meta name="baidu-site-verification" content="OBVzrC9aaQ" /> <meta http-equiv="Cache-Control" content="no-transform" /> <meta 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id="lz2zk4o" 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: </span>021-34530361</p><p><span>地址: </span>徐塘路88號7幢4層、9幢</p><p>[當前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="nm3ikjv" class="page-proshow02"><p class="title">詳細說明</p><div id="irjgimd" class="box"><p><p style="text-indent:25px">原子吸收分光光度計常見的故障解決方法：故障現(xiàn)象：燃燒縫因生銹被腐蝕，車載原子吸收分光光度計對比，致使汽化的樣品不能全部被原子化，降低了靈敏度，車載原子吸收分光光度計對比。產(chǎn)生原因：液體樣品在噴霧器和撞擊球雙重作用下被汽化，車載原子吸收分光光度計對比，結(jié)尾這些汽化的樣品集中流經(jīng)到燃燒縫處被火焰加熱到原子化狀態(tài)參與測試。解決方法：如果火焰燃燒頭的燃燒縫被堵塞，勢必造成靈敏度的下降，解決的辦法就是用稀酸清洗燃燒縫。另一個有關(guān)燃燒縫的故障是燃燒縫因生銹而被腐蝕，造成縫隙處不光潔，從而影響了靈敏度的下降。原子吸收分光光度計一般可檢測到PPm級（10-6）。車載原子吸收分光光度計對比</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="車載原子吸收分光光度計對比,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">儀器出廠前需經(jīng)質(zhì)檢部門按專業(yè)規(guī)范或企業(yè)規(guī)范檢定。實驗室中的儀器也需經(jīng)計量部門按檢定規(guī)程定期檢定前方可運用,理解和控制儀器的檢定驗收技術(shù)尤為重要。本節(jié)引見有關(guān)儀器主要技術(shù)指標的測試和檢定辦法。譜線的理論波長與儀器波長機構(gòu)讀數(shù)的差值稱為波長示值誤差。目前,原子吸收分光光度計大多以正弦機構(gòu)調(diào)理波長。商品儀器經(jīng)過長途運輸?shù)恼駝?波長示值可能超差。按波長次第假如一直是正誤差或負誤差,但差值不等,能夠經(jīng)過調(diào)整正弦機構(gòu)來校正；若差值大致相等,則可調(diào)理波長鼓輪或數(shù)碼輪來校正；若差值隨波長變化而正負動搖,則需重新調(diào)理光學系統(tǒng)。專業(yè)規(guī)范和檢定規(guī)程請求,波長示值誤差應(yīng)不大于0.5nm，波長反復性應(yīng)優(yōu)于0.3nm。車載原子吸收分光光度計對比原子吸收分光光度計即每種待測元素都要有一個能發(fā)射特定波長譜線的光源。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="車載原子吸收分光光度計對比,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的基本部件：原子吸收分光光度計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，即火焰原子化器和電熱原子化器?；鹧嬗卸喾N火焰，目前普遍應(yīng)用的是空氣—乙炔火焰。電熱原子化器普遍應(yīng)用的是石墨爐原子化器，因而原子吸收分光光度計，就有火焰原子吸收分光光度計和帶石墨爐的原子吸收分光光度計。前者原子化的溫度在2100℃～2400℃之間，后者在2900℃～3000℃之間。</p><p style="text-indent:25px">石墨爐原子吸收分光光度計火焰類型：火焰類型和狀態(tài)對靈敏度高低起著重要作用，應(yīng)根據(jù)被測元素特性去選擇不同火焰。目前火焰按類型分有空氣一氫火焰、空氣一乙炔火焰、一氧化氮一乙炔火焰?？諝庖粴浠鹧娴幕鹧鏈囟容^低，用于測定火焰中容易原子化的元素如砷、硒等;空氣一乙炔火焰屬于中溫火焰，用于測定火焰中較難離解的元素如鎂、鈣、銅、鋅、鉛、錳等;一氧化氮一乙炔火焰屬于高溫火焰，用于測定火焰中難于離解的元素如釩、鋁等?；鹧姘礌顟B(tài)分有貧焰、化學計量焰、富焰。貧焰是指使用過量氧化劑時的火焰，由于大量冷的氧化劑帶走火焰中的熱量，這種火焰溫度較低，又由于氧化劑充分，燃燒完全，火焰具有氧化性氣氛，所以這種火焰適用于堿金屬元素的測定?；瘜W計量焰是按化學計量關(guān)系計算的燃料和氧化劑比率燃燒的火焰，它具有溫度高、干擾少、穩(wěn)定、背景低等特點，除堿金屬和易形成難離解氧化物的元素，大多數(shù)常見元素常用這種火焰。富焰是便用過量燃料的火焰，由于燃燒不完全，火焰具有較強的還原氣氛，所以，這種火焰具有還原性，適用于測定較易于形成難熔氧化物的元素如鑰、稀土元素等。原子吸收分光光度計根據(jù)物質(zhì)基態(tài)原子蒸汽對特征輻射吸收的作用來進行金屬元素分析。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="車載原子吸收分光光度計對比,原子吸收分光光度計" src="https://tyunfile.71360.com/WaterMark/UploadFile/ydfx123/637419991236161257/4858141.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?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)露造成不易點火或火焰分叉故障。產(chǎn)生原因：當冷卻循環(huán)水的溫度遠遠低于室內(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火焰原子化法的優(yōu)點是：火焰原子化法的操作簡便，重現(xiàn)性好，有效光程大。飼料原子吸收分光光度計比較</p><p style="text-indent:25px">現(xiàn)在我國已有多家企業(yè)生產(chǎn)多種型號、性能較先進的原子吸收分光光度計。車載原子吸收分光光度計對比</p><p style="text-indent:25px">原子吸收分光光度計安全操作須知：實驗室高壓氣體的安全管理。1.建議將氣瓶安裝在不受陽光直接照射的室外。2.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。3.氣瓶安放位置需牢靠穩(wěn)固，避免氣瓶翻倒、強烈震動、擊撞或受強外力等情況的發(fā)生。4.氣瓶不得倒置、橫放或大幅度傾斜，需時刻保持直立。5.使用乙炔前，請安裝由正規(guī)廠家生產(chǎn)的乙炔專屬減壓閥。為了防止金屬和乙炔發(fā)生化合作用，請不要使用銅、銀、汞以及它們的合金做成的管道。這些化合物與乙炔會生成金屬乙炔化物，受到?jīng)_擊后可能分解而爆開。6.乙炔氣瓶含有可溶解性的物質(zhì)。若氣瓶內(nèi)壓力低于0.50MPa,為了避免可溶解性物質(zhì)的擴散，請更換新的乙炔氣瓶。車載原子吸收分光光度計對比</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/3173495.html</p></div></div></div></div></div><div id="veb8bya" class="page-right twoColRt"><div id="8882gnk" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="rlnkhtf" 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配件哪家強信息推薦自業(yè)物資供應(yīng)" class="vcenter" 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