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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 id="s77qcof" class="smallimg"><div><p class="pic"><img 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="cizg87r" 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>常見原子吸收分光光度計賣價,原子吸收分光光度計</p><p><span>***更新：</span>2021-01-06 05:12:51</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="oriulhy" 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="uifwd2o" class="page-proshow02"><p class="title">詳細說明</p><div id="7ovr8el" class="box"><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(xué)系統(tǒng)和檢測系統(tǒng)，常見原子吸收分光光度計賣價。它主要用于痕量元素雜質(zhì)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(yīng)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，常見原子吸收分光光度計賣價。但是測定每種元素均需要相應(yīng)的空心陰極燈，常見原子吸收分光光度計賣價，這對檢測工作帶來不便。火焰原子吸收分光光度計應(yīng)用多。常見原子吸收分光光度計賣價</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="常見原子吸收分光光度計賣價,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的常見體系種類有哪些？DEMONA分光體系：中階梯光柵單色器的應(yīng)用越來越多中階。梯光柵單色器在次光譜區(qū)作業(yè)，次光譜自在光譜區(qū)很小，為了將不同級次的堆疊光譜分隔，通常采取穿插色散（在中階梯光柵光路的前方或后方添加首級輔助色散元件），使譜線色散方向和譜級散開方向正交，在焦面上構(gòu)成一個二維色散圖像。這種光柵分辨率較高，可達0.002nm，結(jié)構(gòu)細巧。中階梯光柵單色器結(jié)合面陣檢測器可一起接納整個作業(yè)波段范圍的光譜可完成快速多元素一起測定。**原子吸收分光光度計排行原子吸收分光光度計使儀器顯示數(shù)字化、進樣自動化。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="常見原子吸收分光光度計賣價,原子吸收分光光度計" src="https://tyunfile.71360.com/WaterMark/UploadFile/ydfx123/637419988105282341/1372565.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">原子吸收分光光度計噴口氣流通道阻塞：可取下撞擊球帽用反向氣流或水沖刷，也可用注射器灌水沖刷。噴口內(nèi)管或氣流通道被有機質(zhì)、積累的灰塵或干涸的鹽類等阻塞，可取下撞擊球帽將噴口刺進加熱或發(fā)煙的硫酸－重鉻酸鉀溶液中幾秒鐘，冷后用水沖刷（留意：不行使洗液進入霧化器內(nèi)部），運用半年以上或發(fā)現(xiàn)流量削減，也應(yīng)照此處理。原子吸收分光光度計每次運用結(jié)束，用蒸餾水吸噴2～3分鐘（不行用自來水防止溶液干涸阻塞）。工作室溫不行低于10度，不然噴口的降溫效果可使溶液結(jié)冰阻塞霧化器。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="常見原子吸收分光光度計賣價,原子吸收分光光度計" src="https://tyunfile.71360.com/WaterMark/UploadFile/ydfx123/637419988163192494/7997740.png"></div><p style="text-indent:25px">原子吸收分光光度計翻開乙炔鋼瓶總閥，查看是否漏氣，長按焚燒開關(guān)，直至焚燒成功。將進樣管放到裝有規(guī)范空白溶液的試劑瓶中，點擊"開端"按鈕，把進樣管放到不同的試劑瓶中吸取對應(yīng)的溶液，并點擊"讀數(shù)"按鈕，點擊"打印機"按鈕，設(shè)置對應(yīng)的參數(shù)，并點擊"打印預(yù)覽"按鈕，點擊打印。挑選主界面的Worksheet按鈕，挑選剖析菜單，點擊"火焰實用工具"按鈕，點擊"封閉元素?zé)?按鈕。封閉乙炔氣閥，焚燒，把管道中殘缺的乙炔焚燒完。封閉空氣壓縮機，封閉排水。封閉軟件，點擊"文件"按鈕，點擊"封閉所有文件"按鈕，點擊"EXIT"按鈕。封閉儀器主機電源，封閉通風(fēng)器。原子吸收分光光度計即每種待測元素都要有一個能發(fā)射特定波長譜線的光源。國內(nèi)原子吸收分光光度計單價</p><p style="text-indent:25px">很長一段時間，原子吸收主要局限于天體物理方面的研究。常見原子吸收分光光度計賣價</p><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(yù)別離處理，新型號產(chǎn)品儀器的進樣和測定步驟全部自動化完成。常見原子吸收分光光度計賣價</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)涵蓋分光光度計，氣相色譜，原子吸收，食品安全等，價格合理，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、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/2724040.html</p></div></div></div></div></div><div id="eyq2wdf" class="page-right twoColRt"><div id="ihjamya" class="box01 margin10 clearfix"><h3><a 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