學(xué)校原子吸收分光光度計廠家供應(yīng) 客戶至上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在"濃度"欄輸入標(biāo)樣系列的濃度，依據(jù)制造好的規(guī)范系列溶液濃度，設(shè)置標(biāo)樣濃度，標(biāo)樣濃度有必要從小到大的次序輸入，不用設(shè)置空白濃度。點擊"標(biāo)簽"按鈕，設(shè)置樣品標(biāo)簽，點擊"自動復(fù)制"按鈕，學(xué)校原子吸收分光光度計廠家供應(yīng)，挑選剖析"><meta name="keywords" content="學(xué)校原子吸收分光光度計廠家供應(yīng),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" 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href="http://www.cdcfah.com/cp/third-fenxiyiqi_ysfxyq/">元素分析儀器</a>?學(xué)校原子吸收分光光度計廠家供應(yīng) 客戶至上上海儀電分析儀器供應(yīng)</p><div id="8x7ov3r" class="leftbox clearfix"><h1>學(xué)校原子吸收分光光度計廠家供應(yīng) 客戶至上上海儀電分析儀器供應(yīng)</h1><div id="gahovmt" class="proBig"><div id="ji77ixo" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/ydfx123/637419991236161257/4858141.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="e8dhtkg" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/ydfx123/637419991236161257/4858141.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="xlsokwy" 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>學(xué)校原子吸收分光光度計廠家供應(yīng),原子吸收分光光度計</p><p><span>***更新：</span>2021-01-13 10:25:16</p><p><span id="click" >瀏覽次數(shù)：0次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="espg2ht" 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(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="gfh3nht" class="page-proshow02"><p class="title">詳細說明</p><div id="xqxpvm7" class="box"><p><p style="text-indent:25px">原子吸收分光光度計在"濃度"欄輸入標(biāo)樣系列的濃度，依據(jù)制造好的規(guī)范系列溶液濃度，設(shè)置標(biāo)樣濃度，標(biāo)樣濃度有必要從小到大的次序輸入，不用設(shè)置空白濃度。點擊"標(biāo)簽"按鈕，設(shè)置樣品標(biāo)簽，點擊"自動復(fù)制"按鈕，學(xué)校原子吸收分光光度計廠家供應(yīng)，挑選剖析菜單，點擊"挑選"按鈕，符號需求剖析的樣品單元。翻開燈室門，手持燈座，將燈座突起對準(zhǔn)相應(yīng)的位置，按下白色固定夾按鈕，裝上空心陰燈，學(xué)校原子吸收分光光度計廠家供應(yīng)，學(xué)校原子吸收分光光度計廠家供應(yīng)。翻開元素?zé)簦c擊"翻開元素?zé)?按鈕，優(yōu)化空心陰燈信號，點擊"優(yōu)化"按鈕，當(dāng)能量條接近滿格時，點擊自動增益按鈕。原子吸收分光光度計精密度1%左右。學(xué)校原子吸收分光光度計廠家供應(yīng)</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="學(xué)校原子吸收分光光度計廠家供應(yīng),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中常用的定量辦法：規(guī)范曲線法。規(guī)范曲線法是用規(guī)范物質(zhì)制造一系列已知濃度的規(guī)范試樣，在規(guī)范條件下，測得每一濃度對應(yīng)的吸光度值，以吸光度對濃度作圖，制作規(guī)范曲線。在相同條件下測定樣品吸光度，從規(guī)范曲線上讀取樣品濃度。長處：適用范圍廣，快速簡便，合適大批量樣品的測定。缺乏：試驗準(zhǔn)確度受基體干擾嚴(yán)重。規(guī)范參加法：規(guī)范參加法是在數(shù)個等分的試樣平分別參加呈比例的規(guī)范試樣，然后稀釋到一定體積。根據(jù)測定的吸光度值，制作吸光度A-c（濃度）曲線。用外推法求得稀釋后試樣中待測物的濃度。實驗室原子吸收分光光度計排名原子吸收分光光度計定量關(guān)系可用郎伯-比耳定律。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="學(xué)校原子吸收分光光度計廠家供應(yīng),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程序升溫的條件選擇：在原子吸收分光光度計中，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，以避免試液飛濺?；一囊鈭D是除去基體和局外組分，在保證被測元素沒有丟失的前提下應(yīng)盡或許運用較高的灰化溫度。原子化溫度的選擇原則是，選用達到很大吸收信號的很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(zhǔn)。原子化階段停止通維護氣，以延伸自由原子在石墨爐內(nèi)的平均停留時間。除殘的意圖是為了消除殘留物發(fā)生的記憶效應(yīng)，除殘溫度應(yīng)高于原子化溫度。</p><p style="text-indent:25px">電熱原子化器普遍應(yīng)用的是原子吸收分光光度計，因而原子吸收分光光度計，就有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。原子吸收分光光度計，利用空氣—乙炔測定的元素可達30多種，若使用氧化亞氮—乙炔火焰，測定的元素可達70多種。但氧化亞氮—乙炔火焰安全性較差，應(yīng)用不普遍?？諝狻胰不鹧嬖游辗止夤舛扔?，一般可檢測到PPm級（10-6），精密度1%左右。國產(chǎn)的原子吸收分光光度計，都可配備各種型號的氫化物發(fā)生器（屬電加熱原子化器），利用氫化物發(fā)生器，可測定砷（As）、銻（Sb）、鍺（Ge）、碲（Te）等元素。一般靈敏度在ng/ml級（10-9），相對標(biāo)準(zhǔn)偏差2%左右。汞(Hg)可用冷原子吸收法測定。原子吸收分光光度計測定每種元素均需要相應(yīng)的空心陰極燈，這對檢測工作帶來不便。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="學(xué)校原子吸收分光光度計廠家供應(yīng),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">原子吸收分光光度計的工作原理：原子吸收光譜儀又稱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。它能夠靈敏可靠地測定微量或痕量元素。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)。元素在熱解石墨爐中被加熱原子化，成為基態(tài)原子蒸汽，對空心陰極燈發(fā)射的特征輻射進行選擇性吸收。在一定濃度范圍內(nèi)，其吸收強度與試液中被的含量成正比。原子吸收分光光度計多應(yīng)用于各種氣體，金屬有機化合物，金屬醇鹽中微量元素的分析。上海**原子吸收分光光度計現(xiàn)貨</p><p style="text-indent:25px">原子吸收分光光度計計算機數(shù)據(jù)處理系統(tǒng)使整個分析實現(xiàn)自動化。學(xué)校原子吸收分光光度計廠家供應(yīng)</p><p style="text-indent:25px">原子吸收分光光度計Stockdale雙光束光學(xué)體系：Stockdale雙光束儀器，其作業(yè)原理是在光束經(jīng)過途徑的原子化器前方和后方分別添加一塊可以移動或滾動的反射鏡，反射鏡驅(qū)離光路時光束全部經(jīng)過原子化器，反射鏡移入光路時，光源輻射繞過原子化器完全進入單色器，并將此光信號作為參閱光束，與樣品光束分別測量運算。在測定時間內(nèi)重復(fù)地將這對反射鏡移入和驅(qū)離光路，到達雙光束的效果。這樣的雙光束體系不削減進入分光體系的光能量，能獲得較好的信噪比，關(guān)于緩慢的基線漂移有很好的補償效果。學(xué)校原子吸收分光光度計廠家供應(yīng)</p><p style="text-indent:25px">上海儀電分析儀器有限公司致力于儀器儀表，是一家生產(chǎn)型公司。公司業(yè)務(wù)分為分光光度計，氣相色譜，原子吸收，食品安全等，目前不斷進行創(chuàng)新和服務(wù)改進，為客戶提供良好的產(chǎn)品和服務(wù)。公司從事儀器儀表多年，有著創(chuàng)新的設(shè)計、強大的技術(shù)，還有一批**的專業(yè)化的隊伍，確保為客戶提供良好的產(chǎn)品及服務(wù)。儀電分析憑借創(chuàng)新的產(chǎn)品、專業(yè)的服務(wù)、眾多的成功案例積累起來的聲譽和口碑，讓企業(yè)發(fā)展再上新高。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2829992.html</p></div></div></div></div></div><div id="rvcjq33" class="page-right twoColRt"><div id="f7j3a7o" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="3riuwmy" 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" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>福建ZF配件哪家強信息推薦自業(yè)物資供應(yīng)</p></a></div><div id="yhd2n9n" class="recomPic likePro"><a 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