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src="https://tyunfile.71360.com/WaterMark/UploadFile/ydfx123/637419988134237392/1056352.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="c3t3f8s" 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)品關鍵詞：</span>專業(yè)原子吸收分光光度計怎么樣,原子吸收分光光度計</p><p><span>***更新：</span>2021-02-03 01:11:52</p><p><span id="click" >瀏覽次數(shù)：5次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="jtdgajj" 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="sf88gbq" class="page-proshow02"><p class="title">詳細說明</p><div id="zrh9pak" class="box"><p><p style="text-indent:25px">原子吸收分光光度計的實際應用：1，專業(yè)原子吸收分光光度計怎么樣、有機物分析中的應用：利用間接法可以測定多種有機物。8-羥基喹啉(Cu)、醇類(Cr)、醛類(Ag)、酯類(Fe)、酚類(Fe)，專業(yè)原子吸收分光光度計怎么樣、聯(lián)乙酰(Ni)、酞酸(Cu)、脂肪胺(co)、氨基酸(Cu)、維生素C(Ni)、氨茴酸(Co)、雷米封(Cu)、甲酸奎寧(Zn)、有機酸酐(Fe)、苯甲基青霉素(Cu)、葡萄糖(Ca)、環(huán)氧化物水解酶(PbO、含鹵素的有機化合物(Ag)等多種有機物，均通過與相應的金屬元素之間的化學計量反應而間接測定。2、金屬化學形態(tài)分析中的應用：通過氣相色譜和液體色譜分離然后以原子吸收光譜加以測定，可以分析同種金屬元素的不同有機化合物。例如汽油中5種烷基鉛，專業(yè)原子吸收分光光度計怎么樣，大氣中的5種烷基鉛、烷基硒、烷基胂、烷基錫，水體中的烷基胂、烷基鉛、烷基揭、烷基汞、有機鉻，生物中的烷基鉛、烷基汞、有機鋅、有機銅等多種金屬有機化合物，均可通過不同類型的光譜原子吸收聯(lián)用方式加以鑒別和測定。點火時操作人員應處于儀器正面左側(cè)，且右側(cè)及正后方不能站人。專業(yè)原子吸收分光光度計怎么樣</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="專業(yè)原子吸收分光光度計怎么樣,原子吸收分光光度計" src="https://tyunfile.71360.com/WaterMark/UploadFile/ydfx123/637419988134237392/1056352.png"></div><p style="text-indent:25px">原子吸收分光光度計利用待測元素的共振輻射，原子吸收分光光度計價格通過其原子蒸汽，測定其吸光度的裝置稱為原子吸收分光光度計。原子吸收分光光度計價格它有單光束，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。普遍應用于各種氣體，金屬有機化合物，金屬醇鹽中微量元素的分析。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。環(huán)保原子吸收分光光度計選擇原子化器主要有兩大類，即原子吸收分光光度計和電熱原子化器。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="專業(yè)原子吸收分光光度計怎么樣,原子吸收分光光度計" src="https://tyunfile.71360.com/WaterMark/UploadFile/ydfx123/637419991291551872/1267970.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：應鞏固穩(wěn)定，臺面平整。為便于操作與維修，實驗臺周圍應留出足夠的空間。2、環(huán)境：實驗時應設置在無強磁場和熱輻射的**，不宜建在會產(chǎn)生猛烈振動的設備和車間左近。實驗室內(nèi)應堅持清潔。溫度應堅持在10~30°C，空氣相對濕度應小于80％。儀器應防止日光直射、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。</p><p style="text-indent:25px">我國原子吸收商品儀器的生產(chǎn)已有30年，目前國內(nèi)外生產(chǎn)廠家有十多家，幾十種型號。對此，用戶要知己知彼。首先要明確購買儀器主要解決什么問題，分析要求是什么。因為不同的分析要求，對儀器的功能要求會有不同的側(cè)重，而任何一臺儀器也不是全能的。其次，是要考慮適用性和經(jīng)濟性。要結(jié)合自己的經(jīng)濟實力，技術水平和人員素質(zhì)選擇能滿足自己工作要求的型號。第三，對新組建原子光譜實驗室的用戶，還要注意必須有輔助設備的投入，如樣品的前處理設備的購置，實驗室環(huán)境條件的建設，如穩(wěn)壓電源、空調(diào)、清潔的房間以及地線等。有的用戶不注意這些基本條件的準備，就匆匆購買儀器，結(jié)果儀器購買后長期不能投產(chǎn)，不能發(fā)揮儀器的效益。第四，注意人才培養(yǎng)，原子吸收光譜儀屬于大型精密儀器，樣品前處理以及操作相對較為復雜，建議用戶一定配備具有中專以上文化水平的人，較好是分析化學專業(yè)人才，如果這方面不注意，也不能使儀器盡快發(fā)揮作用。第五，售后服務要有保障，如安裝、培訓、耗材的供給等等。原子吸收分光光度計采用新的電子技術。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="專業(yè)原子吸收分光光度計怎么樣,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與紫外可見分光光度計的區(qū)別：1、標準溶液:原子吸收分光光度計使用的標準溶液在4℃溫度下可保存較長時間，放置室溫后可正常使用。紫外可見分光光度計樣品及標準溶液顯色穩(wěn)定后需在半小時之內(nèi)測定，且對溫度及時間要求比較苛刻。2、檢測時間:原子吸收分光光度計分析速度較快，操作簡便，半個小時內(nèi)能連續(xù)測定幾十個試樣中的5、6種元素。紫外可見分光光度計由于有顯色過程，測量時間相對而言較長，操作比較麻煩。3、應用對象：原子吸收分光光度計針對于金屬微量元素的定量分析，火焰法：液樣含量范圍通常在0。1PPM~15PPM之間（個別元素如錫會高些）；石墨爐分析在火焰法的基礎上則能提高2~3個數(shù)級，即液樣含量范圍通常在0。001PPM~0。100PPM之間。紫外可見分光光度計分析含量范圍一般在1PPM以上，主要分析高含量的樣品。4、操作性：原子吸收分光光度計操作簡單,對化驗員要求比較低，干擾低。紫外可見分光光度計樣品處理極為復雜,對化驗員要求比較高。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。高性能原子吸收分光光度計對比</p><p style="text-indent:25px">電熱原子化器普遍應用的是原子吸收分光光度計。專業(yè)原子吸收分光光度計怎么樣</p><p style="text-indent:25px">石墨爐原子吸收分光光度計火焰類型：火焰類型和狀態(tài)對靈敏度高低起著重要作用，應根據(jù)被測元素特性去選擇不同火焰。目前火焰按類型分有空氣一氫火焰、空氣一乙炔火焰、一氧化氮一乙炔火焰?？諝庖粴浠鹧娴幕鹧鏈囟容^低，用于測定火焰中容易原子化的元素如砷、硒等;空氣一乙炔火焰屬于中溫火焰，用于測定火焰中較難離解的元素如鎂、鈣、銅、鋅、鉛、錳等;一氧化氮一乙炔火焰屬于高溫火焰，用于測定火焰中難于離解的元素如釩、鋁等?；鹧姘礌顟B(tài)分有貧焰、化學計量焰、富焰。貧焰是指使用過量氧化劑時的火焰，由于大量冷的氧化劑帶走火焰中的熱量，這種火焰溫度較低，又由于氧化劑充分，燃燒完全，火焰具有氧化性氣氛，所以這種火焰適用于堿金屬元素的測定。化學計量焰是按化學計量關系計算的燃料和氧化劑比率燃燒的火焰，它具有溫度高、干擾少、穩(wěn)定、背景低等特點，除堿金屬和易形成難離解氧化物的元素，大多數(shù)常見元素常用這種火焰。富焰是便用過量燃料的火焰，由于燃燒不完全，火焰具有較強的還原氣氛，所以，這種火焰具有還原性，適用于測定較易于形成難熔氧化物的元素如鑰、稀土元素等。專業(yè)原子吸收分光光度計怎么樣</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/3130710.html</p></div></div></div></div></div><div id="nkqjomb" class="page-right twoColRt"><div id="8wh9pvg" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="ckfddyp" 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" 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