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clearfix"><h1>實(shí)驗(yàn)室原子吸收分光光度計(jì)現(xiàn)貨歡迎來電上海儀電分析儀器供應(yīng)</h1><div id="klfks83" class="proBig"><div id="btmkin8" 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="sz8ckt0" 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="ldsfd0j" 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>實(shí)驗(yàn)室原子吸收分光光度計(jì)現(xiàn)貨,原子吸收分光光度計(jì)</p><p><span>最后更新：</span>2021-01-25 07:11:59</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="yu8jga3" 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(jī): </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="b80ckic" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="8dxu3qj" class="box"><p><p style="text-indent:25px">原子吸收分光光度計(jì)翻開乙炔鋼瓶總閥，實(shí)驗(yàn)室原子吸收分光光度計(jì)現(xiàn)貨，查看是否漏氣，長按焚燒開關(guān)，直至焚燒成功。將進(jìn)樣管放到裝有規(guī)范空白溶液的試劑瓶中，點(diǎn)擊"開端"按鈕，把進(jìn)樣管放到不同的試劑瓶中吸取對應(yīng)的溶液，并點(diǎn)擊"讀數(shù)"按鈕，點(diǎn)擊"打印機(jī)"按鈕，設(shè)置對應(yīng)的參數(shù)，并點(diǎn)擊"打印預(yù)覽"按鈕，點(diǎn)擊打印。挑選主界面的Worksheet按鈕，挑選剖析菜單，點(diǎn)擊"火焰實(shí)用工具"按鈕，點(diǎn)擊"封閉元素?zé)?按鈕。封閉乙炔氣閥，焚燒，實(shí)驗(yàn)室原子吸收分光光度計(jì)現(xiàn)貨，把管道中殘缺的乙炔焚燒完。封閉空氣壓縮機(jī)，封閉排水。封閉軟件，點(diǎn)擊"文件"按鈕，點(diǎn)擊"封閉所有文件"按鈕，點(diǎn)擊"EXIT"按鈕。封閉儀器主機(jī)電源，實(shí)驗(yàn)室原子吸收分光光度計(jì)現(xiàn)貨，封閉通風(fēng)器。原子吸收分光光度計(jì)空氣—乙炔火焰原子吸收分光光度計(jì)。實(shí)驗(yàn)室原子吸收分光光度計(jì)現(xiàn)貨</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="實(shí)驗(yàn)室原子吸收分光光度計(jì)現(xiàn)貨,原子吸收分光光度計(jì)" src="https://tyunfile.71360.com/WaterMark/UploadFile/ydfx123/637419991268710095/3209448.png"></div><p style="text-indent:25px">原子吸收光譜分析工作原理：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度計(jì)。它有單光束，雙光束，雙波道，多波道等結(jié)構(gòu)形式。其基本結(jié)構(gòu)包括光源，原子化器，光學(xué)系統(tǒng)和檢測系統(tǒng)。它主要用于痕量元素雜質(zhì)的分析，具有靈敏度高及選擇性好兩大主要優(yōu)點(diǎn)。多應(yīng)用于各種氣體，金屬有機(jī)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(yīng)的空心陰極燈，這對檢測工作帶來不便?；鹧嬖踊ǖ膬?yōu)點(diǎn)是：火焰原子化法的操作簡便，重現(xiàn)性好，有效光程大，對大多數(shù)元素有較高靈敏度，因此應(yīng)用多。缺點(diǎn)是：原子化效率低，靈敏度不夠高，而且一般不能直接分析固體樣品。全自動原子吸收分光光度計(jì)報價原子吸收分光光度計(jì)汞(Hg)可用冷原子吸收法測定。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="實(shí)驗(yàn)室原子吸收分光光度計(jì)現(xiàn)貨,原子吸收分光光度計(jì)" src="https://tyunfile.71360.com/WaterMark/UploadFile/ydfx123/637419988134237392/1056352.png"></div><p style="text-indent:25px">石墨爐原子吸收分光光度計(jì)，可以測定近50種元素。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。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(jìn)行選擇性吸收。在一定濃度范圍內(nèi)，其吸收強(qiáng)度與試液中被測元素的含量成正比。其定量關(guān)系可用郎伯-比耳定律，A=-lgI/Io=-lgT=KCL，式中I為透射光強(qiáng)度；I0為發(fā)射光強(qiáng)度；T為透射比；L為光通過原子化器光程(長度)，每臺儀器的L值是固定的；C是被測樣品濃度；所以A=KC。</p><p style="text-indent:25px">原子吸收分光光度計(jì)內(nèi)標(biāo)法是在試樣各含量不同的一系列規(guī)范試樣中，分別參加固定量的純物質(zhì)，即內(nèi)標(biāo)物。在規(guī)范條件下測定剖析元素和內(nèi)標(biāo)元素的吸光度比，以此比值對濃度作圖，制作規(guī)范曲線，在同樣條件下，測定試樣中被測元素和內(nèi)標(biāo)元素的吸光度比值，在從規(guī)范曲線上讀取對應(yīng)的濃度。長處：可以減少試驗(yàn)條件按變化引起的隨機(jī)誤差，進(jìn)步精細(xì)度。缺乏：需要使用雙通道原子吸收光譜儀，使用上受到限制。剖析速度快，可多元素和常量、微量元素一起進(jìn)行剖析。一般的發(fā)射光譜剖析法不適用于測定樣品中含量高的元素，假如通過辦法研究滿意了準(zhǔn)確測定高含量元素的要求，則常不能滿意微量元素的需要。采用電感耦合等離子體發(fā)射光譜剖析辦法成功地處理了這類問題。原子吸收分光光度計(jì)，就有原子吸收分光光度計(jì)和帶石墨爐的原子吸收分光光度計(jì)。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="實(shí)驗(yàn)室原子吸收分光光度計(jì)現(xiàn)貨,原子吸收分光光度計(jì)" src="https://tyunfile.71360.com/WaterMark/UploadFile/ydfx123/637419988188495975/1516361.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(jì)功不行沒，愛糧節(jié)糧監(jiān)測技術(shù)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(dá)1200萬噸，經(jīng)濟(jì)損失高達(dá)數(shù)十億元。因而，原子吸收分光光度計(jì)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(zhì)B1等有害物質(zhì)以及農(nóng)藥殘留等食品平安目標(biāo)。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(zhì)譜法等，有害物質(zhì)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(nóng)殘檢測則常用液相色譜-質(zhì)譜聯(lián)用法和氣相色譜-質(zhì)譜聯(lián)用法?；鹧嬖游辗止夤舛扔?jì)缺點(diǎn)是：原子化效率低，靈敏度不夠高。空氣原子吸收分光光度計(jì)</p><p style="text-indent:25px">原子吸收分光光度計(jì)由于儀器使用中，需用乙炔、氫氣、氬氣、氧化亞氮（俗稱笑氣）等。實(shí)驗(yàn)室原子吸收分光光度計(jì)現(xiàn)貨</p><p style="text-indent:25px">原子吸收分光光度計(jì)的操作步驟：1.翻開通風(fēng)，翻開儀器主機(jī)。2.翻開相關(guān)的操作軟件，點(diǎn)擊電腦桌面上的SpectrAA軟件圖標(biāo)，挑選主界面中的WorkSheet按鈕，挑選"新建"按鈕建立新工作表格，挑選要選用剖析表格的儀器并點(diǎn)擊確定。挑選方針文件夾，依據(jù)要求命名文件，并點(diǎn)擊確定。點(diǎn)擊"增加辦法"按鈕，挑選辦法類型為"火焰"。挑選要剖析的元素，并點(diǎn)擊確定。3.雙擊選取的元素或許點(diǎn)擊"修改辦法"按鈕翻開辦法對話框，挑選進(jìn)樣形式為手動，挑選儀器形式為吸收，并點(diǎn)擊下一步，挑選丈量形式為"峰高"，設(shè)定"時間"、"讀數(shù)次數(shù)"，并點(diǎn)擊下一步。4.設(shè)置"扣布景"，如待測元素的測定波長小于370nm挑選"扣布景開"，大于370nm則挑選"扣布景關(guān)"。并點(diǎn)擊下一步。實(shí)驗(yàn)室原子吸收分光光度計(jì)現(xiàn)貨</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/3002466.html</p></div></div></div></div></div><div id="zk8gdb3" class="page-right twoColRt"><div id="phrgiq3" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="zv3gzx6" 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(qiáng) 信息推薦自業(yè)物資供應(yīng)" class="vcenter" 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