上海原子吸收分光光度計經(jīng)銷商客戶至上上海儀電分析儀器供應-b2b網(wǎng)站_b2b電子商務平臺【買產品】-上?？谄蚴称酚邢薰?/title><meta name="description" content="在原子化進程中，用高達數(shù)百安培電流加熱石墨管，上海原子吸收分光光度計經(jīng)銷商，在一秒鐘內使之達到2000℃～3000℃，樣品在如此短的時刻被加熱蒸騰、解離成分子、原子蒸氣是一個急速分散脹大改變進程。石墨管內待測元素原子和共存物質蒸氣的濃度具有"><meta name="keywords" content="上海原子吸收分光光度計經(jīng)銷商,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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clearfix"><div id="2ne7x78" class="twoCol"><div id="2mdheg3" 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/">產品供應</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>?上海原子吸收分光光度計經(jīng)銷商客戶至上上海儀電分析儀器供應</p><div id="hqxo2e7" class="leftbox clearfix"><h1>上海原子吸收分光光度計經(jīng)銷商客戶至上上海儀電分析儀器供應</h1><div id="fjqnub8" class="proBig"><div id="n3my23w" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/ydfx123/637419991268710095/3209448.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="eov8ykb" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/ydfx123/637419991268710095/3209448.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="yiyfwdf" 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>產品關鍵詞：</span>上海原子吸收分光光度計經(jīng)銷商,原子吸收分光光度計</p><p><span>***更新：</span>2021-01-21 09:13:51</p><p><span id="click" >瀏覽次數(shù)：3次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="ixegyfh" 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="pe8ynpb" class="page-proshow02"><p class="title">詳細說明</p><div id="2vcel3g" class="box"><p><p style="text-indent:25px">在原子化進程中，用高達數(shù)百安培電流加熱石墨管，上海原子吸收分光光度計經(jīng)銷商，在一秒鐘內使之達到2000℃～3000℃，樣品在如此短的時刻被加熱蒸騰、解離成分子、原子蒸氣是一個急速分散脹大改變進程。石墨管內待測元素原子和共存物質蒸氣的濃度具有激烈的時空特性，即管內不同點的濃度隨時刻而急速改變，同一時刻不同方位的濃度也不同。用快速響應檢測電路系統(tǒng)取得的原子吸收和背景吸收信號是兩條隨時刻改變的曲線，這便是原子化信號的瞬態(tài)性，上海原子吸收分光光度計經(jīng)銷商。這一點與火焰法的安穩(wěn)信號完全不同。此外，上海原子吸收分光光度計經(jīng)銷商，原子化進程的瞬態(tài)信號還受制于石墨管的時刻和空間溫度特性，此乃人們感興趣也是研究很多的問題之一。電熱原子化器普遍應用的是原子吸收分光光度計。上海原子吸收分光光度計經(jīng)銷商</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海原子吸收分光光度計經(jīng)銷商,原子吸收分光光度計" src="https://tyunfile.71360.com/WaterMark/UploadFile/ydfx123/637419991268710095/3209448.png"></div><p style="text-indent:25px">你知道怎樣正確挑選原子吸收分光光度計嗎？1.剖析線挑選：通常選用共振吸收線為剖析線，測定高含量元素時，能夠選用靈敏度較低的非共振吸收線為剖析線。As、Se等共振吸收線位于200nm以下的遠紫外區(qū)，火焰組分對其有明顯吸收，故用火焰原子吸收法測定這些元素時，不宜選用共振吸收線為剖析線。2.狹縫寬度挑選：狹縫寬度影響光譜通帶寬度與檢測器接受的能量。原子吸收分光光度計中，光譜堆疊干擾的幾率小，能夠答應運用較寬的狹縫。調節(jié)不同的狹縫寬度，測定吸光度隨狹縫寬度而變化，當有其它的譜線或非吸收光進入光譜通帶內，吸光度將當即減小。不引起吸光度減小的很大狹縫寬度，即為應選取的合適的狹縫寬度。國產**原子吸收分光光度計排名原子吸收分光光度計主要原因是未找到可產生銳線光譜的光源。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海原子吸收分光光度計經(jīng)銷商,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">傳感器監(jiān)管糧食廠，原子吸收分光光度計功不行沒，愛糧節(jié)糧監(jiān)測技術少不了，糧食，是咱們賴以生存的條件之一，據(jù)了解，我國1/5的耕地面積被重金屬污染(近2000萬公頃)，每年受重金屬污染的糧食高達1200萬噸，經(jīng)濟損失高達數(shù)十億元。因而，原子吸收分光光度計不行少，都有哪些儀器儀表來助力咱們監(jiān)測呢？針對糧食污染等問題，咱們需要檢測鎘、鉛等重金屬含量，黃曲霉有害物質B1等有害物質以及農藥殘留等食品平安目標。重金屬含量檢測常用的辦法有原子熒光光譜法、原子吸收光譜法、電感耦合等離子質譜法等，有害物質的分析一般采用酶聯(lián)免疫法、薄層色譜法和有效液相色譜法，農殘檢測則常用液相色譜-質譜聯(lián)用法和氣相色譜-質譜聯(lián)用法。</p><p style="text-indent:25px">原子吸收分光光度計安全使用的前提條件：原子吸收分光光度計是基于從光源中輻射出的待測元素的特征光波通過樣品的原子蒸氣時，被蒸氣中待測元素的基態(tài)原子所吸收，使通過的光波強度削弱，依據(jù)光波強度削弱的程度，可以求出樣品中待測元素的含量。利用待測元素的共振輻射，通過其原子蒸汽，測定其吸光度的裝置稱為原子吸收分光光光源，原子化器，光學系統(tǒng)和檢測系統(tǒng)。它主要用于痕量元素雜質的分析，具有靈敏度高、精確度好和選擇性好三大主要優(yōu)點。多應用于特種氣體，金屬有機化合物，金屬醇鹽中微量元素的分析。但是測定每種元素均需要相應的空心陰極燈，這對檢測工作帶來不便。原子吸收分光光度計主要用于痕量元素雜質的分析。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海原子吸收分光光度計經(jīng)銷商,原子吸收分光光度計" src="https://tyunfile.71360.com/WaterMark/UploadFile/ydfx123/637419991385859509/5179129.png"></div><p style="text-indent:25px">哪些是原子吸收分光光度計的特點?原子吸收分光光度計(AAS)簡稱原子吸收法，是使用被測元素基態(tài)原子蒸氣對其共振輻射線的吸收特性進行元素定量剖析的方法。原子吸收分光光度計具有以下特色：①靈敏度高：慣例剖析法對大多數(shù)元素可到達ppm級;使用特別手法可到達ppb級的濃度范圍;②精密度好：一般測定RSD約為1%～3%，使用特別方法精密度可小于1%。③使用范圍廣：周期表中70多種元素可使用該法測定：④干擾少：原子吸收光譜為分立的銳線光譜，且譜線堆疊性少，干擾性小;⑤試樣用量少：選用石墨爐無火焰原子吸收法，每次丈量*需5～20μl試液或0.05～10mg的固體試樣;⑥快速簡潔，易于自動化：液體試樣?？芍苯舆M樣，一般樣品無需進行預別離處理，新型號產品儀器的進樣和測定步驟全部自動化完成。原子吸收分光光度計測定的元素可達70多種。上海原子吸收分光光度計經(jīng)銷商</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。上海原子吸收分光光度計經(jīng)銷商</p><p style="text-indent:25px">儀器儀表行業(yè)本身是一個加入，產出周期較長的行業(yè)，所以作為業(yè)內廠家，一方面要尋找中、短期市場熱點，另一方面也要在產品、技術研發(fā)方面有長遠的規(guī)劃;儀器儀表在工業(yè)生產過程中扮演著重要的角色，用到各種各樣的儀器儀表，如分光光度計，氣相色譜，原子吸收，食品安全等為工業(yè)的檢驗、測量和計量提供技術支撐。儀器儀表應用領域寬泛，覆蓋了儀器儀表、電子元器件及相關的系統(tǒng)集成的生產、服務及銷售，計算機軟件開發(fā)及銷售，從事貨物進出口及技術進出口業(yè)務?！疽婪毥?jīng)批準的項目，經(jīng)相關部門批準后方可開展經(jīng)營活動】儀器儀表、電子元器件及相關的系統(tǒng)集成的生產、服務及銷售，計算機軟件開發(fā)及銷售，從事貨物進出口及技術進出口業(yè)務?！疽婪毥?jīng)批準的項目，經(jīng)相關部門批準后方可開展經(jīng)營活動】等各方面，在國民經(jīng)濟建設各行各業(yè)的運行過程中承擔著把關者和指導者的任務，儀器儀表制造行業(yè)可以分為通用儀表儀器制造、**儀器儀表制造、鐘表與計時儀器制造、光學儀器制造和衡器制造。銷售專業(yè)化發(fā)展是中國儀器儀表產業(yè)的又一發(fā)展趨勢，隨著科技水平的提高，儀器儀表產品不*用在日常的測量、調節(jié)、測溫、顯示等設備中，而且開始運用在不同的領域之中。上海原子吸收分光光度計經(jīng)銷商</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2945579.html</p></div></div></div></div></div><div id="tdacolx" class="page-right twoColRt"><div id="vubi23o" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="tizgsj3" class="recomPic likePro"><a 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