國內(nèi)**原子吸收分光光度計多少錢歡迎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"><meta name="keywords" content="國內(nèi)**原子吸收分光光度計多少錢,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" 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class="page-proshow clearfix"><p class="current"> 當前位置:<a href="http://www.cdcfah.com/">首頁?<a href="http://www.cdcfah.com/cp/">產(chǎn)品供應(yīng)</a>?<a href="http://www.cdcfah.com/cp/first-_yiqiyibiao/">儀器儀表</a>?<a href="http://www.cdcfah.com/cp/second-yiqiyibiao_fenxiyiqi/">分析儀器</a>?<a href="http://www.cdcfah.com/cp/third-fenxiyiqi_ysfxyq/">元素分析儀器</a>?國內(nèi)**原子吸收分光光度計多少錢歡迎咨詢上海儀電分析儀器供應(yīng)</p><div id="vzbdfzq" class="leftbox clearfix"><h1>國內(nèi)**原子吸收分光光度計多少錢歡迎咨詢上海儀電分析儀器供應(yīng)</h1><div id="a8iprt2" class="proBig"><div id="8eli3j3" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/ydfx123/637419988150712025/4463747.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="g8p88af" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/ydfx123/637419988150712025/4463747.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="xmeasjl" 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>國內(nèi)**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>2021-02-01 01:12:29</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="v2q9hho" 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="n8c9wde" class="page-proshow02"><p class="title">詳細說明</p><div id="k9cwdkw" class="box"><p><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，國內(nèi)**原子吸收分光光度計多少錢，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，國內(nèi)**原子吸收分光光度計多少錢。前者原子化的溫度在2100℃～2400℃之間，國內(nèi)**原子吸收分光光度計多少錢，后者在2900℃～3000℃之間。原子吸收分光光度計空氣—乙炔火焰原子吸收分光光度計。國內(nèi)**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="國內(nèi)**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/ydfx123/637419988150712025/4463747.png"></div><p style="text-indent:25px">原子吸收分光光度計裝置場地的請求：1、實驗臺：應(yīng)鞏固穩(wěn)定，臺面平整。為便于操作與維修，實驗臺周圍應(yīng)留出足夠的空間。2、環(huán)境：實驗時應(yīng)設(shè)置在無強磁場和熱輻射的**，不宜建在會產(chǎn)生猛烈振動的設(shè)備和車間左近。實驗室內(nèi)應(yīng)堅持清潔。溫度應(yīng)堅持在10~30°C，空氣相對濕度應(yīng)小于80％。儀器應(yīng)防止日光直射、煙塵、純凈氣流及水蒸氣的影響，避免腐蝕氣體的干擾。3、冷卻水：裝備水循環(huán)設(shè)備,用水質(zhì)較硬的自來水容易在石墨爐腔體內(nèi)結(jié)水垢。4、供氣：供氣鋼瓶不應(yīng)放在儀器房間內(nèi),要放在離主機近、平安、通風良好的房間。5、電源：各個品牌的原子吸收分光光度計以及其各種附件允許的電壓范圍和功率都有所不同，運用前務(wù)必依照闡明書的請求停止配置。普通請求為：采用三相供電系統(tǒng)。一相供主機、計算機和打印機。電壓為220V±10%,要接到一個大于1kVA的穩(wěn)壓電源。6、排氣罩：原子吸收分光光度計的上方必需準備一個通風罩，使熄滅器產(chǎn)生的熄滅氣體能順利排。手持原子吸收分光光度計設(shè)備原子吸收光譜分析中，光譜重疊干擾的幾率小，可以允許使用較寬的狹縫。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="國內(nèi)**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/ydfx123/637419991326259040/7441452.png"></div><p style="text-indent:25px">原子吸收光譜儀分析中的干擾效應(yīng)：1.物理干擾：物理干擾是指試樣在轉(zhuǎn)移、蒸發(fā)和原子化過程中，由于試樣任何物理特性（如粘度、表面張力、密度等）的變化而引起的原子吸收強度下降的效應(yīng)。物理干擾是非選擇性干擾，對試樣各元素的影響基本是相似的。配制與被測試樣相似組成的標準樣品，是消除物理干擾較常用的方法。在不知道試樣組成或無法匹配試樣時，可采用標準加入法或稀釋法來減小和消除物理干擾。2.化學(xué)干擾：化學(xué)干擾是由于液相或氣相中被測元素的原子與干擾物質(zhì)組分之間形成熱力學(xué)更穩(wěn)定的化合物，從而影響被測元素化合物的解離及其原子化。磷酸根對鈣的干擾，硅、鈦形成難解離的氧化物、鎢、硼、希土元素等生成難解離的碳化物，從而使有關(guān)元素不能有效原子化，都是化學(xué)干擾的例子?；瘜W(xué)干擾是一種選擇性干擾。</p><p style="text-indent:25px">原子吸收分光光度計原子化條件：程序升溫的條件選擇:在石墨爐原子化法中，合理選擇干燥、灰化、原子化及除殘溫度與時間是十分重要的。干燥應(yīng)在稍低于溶劑沸點的溫度下進行，以防止試液飛濺?；一哪康氖浅セw和局外組分，在保證被測元素沒有損失的前提下應(yīng)盡可能使用較高的灰化溫度。原子化溫度的選擇原則是，選用達到較大吸收信號的較低溫度作為原子化溫度。原子化時間的選擇，應(yīng)以保證完全原子化為準。原子化階段停止通保護氣，以延長自由原子在石墨爐內(nèi)的平均停留時間。除殘的目的是為了消除殘留物產(chǎn)生的記憶效應(yīng)，除殘溫度應(yīng)高于原子化溫度。原子吸收分光光度計氧化亞氮—乙炔火焰安全性較差。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="國內(nèi)**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/ydfx123/637419988188495975/1516361.png"></div><p style="text-indent:25px">將試樣中待測元素變成氣態(tài)的基態(tài)原子的過程稱為試樣的“原子化”。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)。試樣中被測元素原子化的方法主要有火焰原子化法和非火焰原子化法兩種?；鹧嬖踊ɡ没鹧鏌崮苁乖嚇愚D(zhuǎn)化為氣態(tài)原子。非火焰原子化法利用電加熱或化學(xué)還原等方式使試樣轉(zhuǎn)化為氣態(tài)原子。原子化系統(tǒng)在原子吸收分光光度計中是一個關(guān)鍵裝置，它的質(zhì)量對原子吸收光譜分析法的靈敏度和準確度有比較大影響，甚至起到?jīng)Q定性的作用，也是分析誤差較大的一個來源。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。工業(yè)原子吸收分光光度計代理</p><p style="text-indent:25px">原子吸收分光度計分析樣品優(yōu)點：靈敏度高。國內(nèi)**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：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。國內(nèi)**原子吸收分光光度計多少錢</p></p><br /><p>文章來源地址: 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