低端原子吸收分光光度計(jì)對(duì)比來(lái)電咨詢(xún) 上海儀電分析儀器供應(yīng)-b2b網(wǎng)站_b2b電子商務(wù)平臺(tái)【買(mǎi)產(chǎn)品】-上?？谄蚴称酚邢薰?/title><meta name="description" content="原子吸收分光光度計(jì)電離效應(yīng)隨溫度升高、電離平衡常數(shù)加大而加大，隨被測(cè)元素濃度增高而減小。參加更易電離的堿金屬元素，能夠有用地消除電離攪擾。物理攪擾是非選擇性攪擾，對(duì)試樣各元素的影響基本是類(lèi)似的，配制與被測(cè)試樣類(lèi)似組成的標(biāo)準(zhǔn)樣品，低端原子吸收"><meta name="keywords" content="低端原子吸收分光光度計(jì)對(duì)比,原子吸收分光光度計(jì)"><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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clearfix"><div id="ao2urda" class="twoCol"><div id="gkmtieg" class="page-proshow clearfix"><p class="current"> 當(dāng)前位置:<a href="http://www.cdcfah.com/">首頁(yè)?<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>?低端原子吸收分光光度計(jì)對(duì)比來(lái)電咨詢(xún) 上海儀電分析儀器供應(yīng)</p><div id="dhzw8he" class="leftbox clearfix"><h1>低端原子吸收分光光度計(jì)對(duì)比來(lái)電咨詢(xún) 上海儀電分析儀器供應(yīng)</h1><div id="imoq4wn" class="proBig"><div id="f3ifuv7" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/ydfx123/637419991385859509/5179129.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="qubysub" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/ydfx123/637419991385859509/5179129.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="bqhzw3f" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價(jià)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>低端原子吸收分光光度計(jì)對(duì)比,原子吸收分光光度計(jì)</p><p><span>***更新：</span>2021-01-18 09:14:05</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="wlskm9m" 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(huà): </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(hào)7幢4層、9幢</p><p>[當(dāng)前離線(xiàn)] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="gqiac4r" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="uebik9a" class="box"><p><p style="text-indent:25px">原子吸收分光光度計(jì)電離效應(yīng)隨溫度升高、電離平衡常數(shù)加大而加大，隨被測(cè)元素濃度增高而減小。參加更易電離的堿金屬元素，能夠有用地消除電離攪擾。物理攪擾是非選擇性攪擾，對(duì)試樣各元素的影響基本是類(lèi)似的，配制與被測(cè)試樣類(lèi)似組成的標(biāo)準(zhǔn)樣品，低端原子吸收分光光度計(jì)對(duì)比，是消除物理攪擾常用的方法。在不知道試樣組成或無(wú)法匹配試樣時(shí)，低端原子吸收分光光度計(jì)對(duì)比，可采用標(biāo)準(zhǔn)參加法或稀釋法來(lái)減小和消除物理攪擾。針對(duì)糧食溫度等監(jiān)測(cè)問(wèn)題，我國(guó)從2000年就開(kāi)端實(shí)施數(shù)字糧情測(cè)控系統(tǒng)，按照必定的密度部署單總線(xiàn)溫度傳感器，協(xié)助糧倉(cāng)完成數(shù)字溫度的實(shí)時(shí)監(jiān)測(cè)，低端原子吸收分光光度計(jì)對(duì)比。石墨爐法，進(jìn)樣量少，靈敏度高，有的元素也可以分析到pg/mL級(jí)。低端原子吸收分光光度計(jì)對(duì)比</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="低端原子吸收分光光度計(jì)對(duì)比,原子吸收分光光度計(jì)" src="https://tyunfile.71360.com/WaterMark/UploadFile/ydfx123/637419991385859509/5179129.png"></div><p style="text-indent:25px">原子吸收分光光度計(jì)的開(kāi)展：1981年原子吸收分光光度計(jì)完成操作自動(dòng)化。1984年首臺(tái)連續(xù)氫化物發(fā)生器面世。1990年推出世界上先進(jìn)的MarkV1焰燃燒頭。1995年在線(xiàn)火焰自動(dòng)進(jìn)樣器（SIPS8）研制成功并投入運(yùn)用。1998年首臺(tái)快速剖析火焰原子吸收220FS誕生。2002年世界上**火焰和石墨爐同時(shí)剖析的原子吸收光譜儀出產(chǎn)并投放市場(chǎng)。原子吸收分光光度計(jì)怎樣用才正確？該崗位群主要是散布于冶金、環(huán)保、食物、制藥、醫(yī)療衛(wèi)生、化學(xué)、化工、農(nóng)業(yè)等領(lǐng)域，主要從事環(huán)境和產(chǎn)品中金屬物質(zhì)的檢驗(yàn)以及科學(xué)研制的質(zhì)量操控等工作。生產(chǎn)原子吸收分光光度計(jì)經(jīng)銷(xiāo)商火焰原子吸收分光光度計(jì)應(yīng)用多。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="低端原子吸收分光光度計(jì)對(duì)比,原子吸收分光光度計(jì)" src="https://tyunfile.71360.com/WaterMark/UploadFile/ydfx123/637419988150712025/4463747.png"></div><p style="text-indent:25px">原子吸收分析中，首先要使待測(cè)元素呈原子狀態(tài)，而原子化往往是將溶液噴霧到火焰中去實(shí)現(xiàn)，這就存在理化方面的干擾，使對(duì)難溶元素的測(cè)定靈敏度還不夠理想，因此實(shí)際效果理想的元素*30余個(gè)；由于儀器使用中，需用乙炔、氫氣、氬氣、氧化亞氮（俗稱(chēng)笑氣）等，操作中必須注意安全。原子吸收分光光度計(jì)一般由四大部分組成，即光源（單色銳線(xiàn)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(cè)裝置）。原子化器主要有兩大類(lèi)，即原子吸收分光光度計(jì)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。</p><p style="text-indent:25px">原子吸收分光光度計(jì)和ICP的比較：原理：原子吸收分光光度計(jì)：經(jīng)過(guò)測(cè)定某一具有特定波長(zhǎng)的光經(jīng)過(guò)試樣原子蒸氣后被吸收的多少來(lái)測(cè)定被測(cè)元素的含量的一種方法。選擇性強(qiáng)，簡(jiǎn)潔、快速。因?yàn)槠溥x用銳線(xiàn)光源，樣品不需要經(jīng)繁瑣的分離，可在同一溶液中直接測(cè)定多種元素，測(cè)定一個(gè)元素只需要數(shù)分鐘，分析操作簡(jiǎn)潔、迅速?？垢蓴_能力強(qiáng)。原子吸收線(xiàn)數(shù)目少，光譜干擾少，一般不存在共存元素的光譜堆疊干擾。應(yīng)用范圍廣?？蓽y(cè)60多種元素；既能用于微量分析又能用于超微量分析。另外，還可用直接的辦法測(cè)定非金屬元素和有機(jī)化合物。原子吸收分光光度計(jì)國(guó)產(chǎn)的原子吸收分光光度計(jì)，都可配備各種型號(hào)的氫化物發(fā)生器。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="低端原子吸收分光光度計(jì)對(duì)比,原子吸收分光光度計(jì)" src="https://tyunfile.71360.com/WaterMark/UploadFile/ydfx123/637419991311337342/3521940.png"></div><p style="text-indent:25px">原子吸收分光光度計(jì)做火焰剖析時(shí)，如果發(fā)生回火，應(yīng)立即封閉燃?xì)猓苊庖饌?，確保人身和產(chǎn)業(yè)的安危。然后再將儀器開(kāi)關(guān)、調(diào)節(jié)設(shè)備恢復(fù)到發(fā)動(dòng)前的狀況，待查明回火原因并采納相應(yīng)措施后再持續(xù)使用。在做石墨爐剖析時(shí)，如遇到突然停水，應(yīng)敏捷切斷主電源，避免燒壞石墨爐。儀器工作時(shí)，如果遇到突然停電，此刻如正在做火焰剖析，則應(yīng)敏捷封閉燃?xì)?若正在做石墨爐剖析時(shí)，則敏捷切斷主機(jī)電源;然后將儀器各部分的操控機(jī)構(gòu)恢復(fù)到停機(jī)狀況，待通電后，再按儀器的操作程序重新開(kāi)啟。原子吸收分光光度計(jì)在分析化學(xué)中的應(yīng)用未能引起重視。食品安全原子吸收分光光度計(jì)多少錢(qián)</p><p style="text-indent:25px">原子吸收分光光度計(jì)的優(yōu)點(diǎn)是：原子化效率高，在可調(diào)的高溫下試樣利用率達(dá)100%，靈敏度高。低端原子吸收分光光度計(jì)對(duì)比</p><p style="text-indent:25px">通常情況下，原子處于基態(tài)。當(dāng)相當(dāng)于原子中的電子由基態(tài)躍遷到激發(fā)態(tài)所需求的輻射頻率經(jīng)過(guò)原子蒸氣，原子就能從入射輻射中吸收能量，發(fā)生共振吸收，然后發(fā)生吸收光譜。原子吸收剖析便是使用基態(tài)原子對(duì)特征輻射的吸收程度的，常使用強(qiáng)吸收線(xiàn)作為剖析線(xiàn)。原子吸收光譜儀由以下四部分組成光源系統(tǒng):空心陰燈原子化系統(tǒng):火焰原子化器;原子吸收分光光度計(jì)或氫化物發(fā)生器。分光系統(tǒng)：?jiǎn)紊鳈z測(cè)系統(tǒng)：光電倍增管等。原子吸收分光光度計(jì)的長(zhǎng)處是:原子化效率高，在可調(diào)的高溫下試樣使用率達(dá)100，活絡(luò)度高，試樣用量少，適用于難熔元素的測(cè)定。缺陷是:試樣組成不均勻性的影響較大，測(cè)定度較低，共存化合物的攪擾比火焰原子化法大，攪擾布景比較嚴(yán)重，一般都需求校正布景。低端原子吸收分光光度計(jì)對(duì)比</p><p style="text-indent:25px">上海儀電分析儀器有限公司位于徐塘路88號(hào)7幢4層、9幢。公司業(yè)務(wù)涵蓋分光光度計(jì)，氣相色譜，原子吸收，食品安全等，價(jià)格合理，品質(zhì)有保證。公司從事儀器儀表多年，有著創(chuàng)新的設(shè)計(jì)、強(qiáng)大的技術(shù)，還有一批**的專(zhuān)業(yè)化的隊(duì)伍，確保為客戶(hù)提供良好的產(chǎn)品及服務(wù)。儀電分析立足于全國(guó)市場(chǎng)，依托強(qiáng)大的研發(fā)實(shí)力，融合前沿的技術(shù)理念，飛快響應(yīng)客戶(hù)的變化需求。</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/2901425.html</p></div></div></div></div></div><div id="gldfrvh" class="page-right twoColRt"><div 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