暗箱紫外可見分光光度計怎么樣歡迎來電上海儀電分析儀器供應(yīng)-b2b網(wǎng)站_b2b電子商務(wù)平臺【買產(chǎn)品】-上?？谄蚴称酚邢薰?/title><meta name="description" content="可見分光光度計，紫外分光光度計和紫外可見分光光度計有什么區(qū)別?可見分光光度計和紫外分光光度計的區(qū)別是測定波長范圍不同，一般可見光波長范圍是400～1000nm,紫外光波長范圍是200～400nm。所謂紫外可見分光光度計也就是說這個儀器可以通"><meta name="keywords" content="暗箱紫外可見分光光度計怎么樣,紫外可見分光光度計"><link rel="canonical" href="http://m.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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href="http://m.cdcfah.com/cp/second-yiqiyibiao_gxyq/">光學(xué)儀器</a>?<a href="http://m.cdcfah.com/cp/third-gxyq_gpygdj/">光譜儀、光度計</a>?暗箱紫外可見分光光度計怎么樣歡迎來電上海儀電分析儀器供應(yīng)</p><div id="2i4h8tv" class="leftbox clearfix"><h1>暗箱紫外可見分光光度計怎么樣歡迎來電上海儀電分析儀器供應(yīng)</h1><div id="udaceln" class="proBig"><div id="mq2h3zb" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/ydfx123/637396594919157259/9098588.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="2m9lpm8" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/ydfx123/637396594919157259/9098588.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="zc3zwtb" 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>暗箱紫外可見分光光度計怎么樣,紫外可見分光光度計</p><p><span>***更新：</span>2020-11-02 11:26:49</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="dhuw8jl" 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="jolnpli" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="wg2h2ur" class="box"><p><p> 可見分光光度計，紫外分光光度計和紫外可見分光光度計有什么區(qū)別? </p> <p> 可見分光光度計和紫外分光光度計的區(qū)別是測定波長范圍不同，一般可見光波長范圍是400～1000nm,紫外光波長范圍是200～400nm。所謂紫外可見分光光度計也就是說這個儀器可以通過更換光源形成紫外和可見的光區(qū)，能夠測定吸收峰在紫外和可見光部分的化合物。一般測定波長在200～1000nm。 </p> <p> 分光光度計的關(guān)鍵參數(shù)有哪些? </p> <p> 選擇可見和紫外可見的分光光度計所關(guān)注的關(guān)鍵的指標(biāo)有三點：一是波長范圍，二是波長準(zhǔn)確度，三是雜散光參數(shù)，暗箱紫外可見分光光度計怎么樣。波長范圍的選擇是由用戶實驗需要所定，波長范圍越寬的價格越貴;波長準(zhǔn)確度及雜散光參數(shù)的數(shù)值越低，表示性能越好，暗箱紫外可見分光光度計怎么樣。大部分單機型的分光光度計包含了驅(qū)動儀器運行和管理數(shù)據(jù)的軟件，暗箱紫外可見分光光度計怎么樣。與PC機一起聯(lián)用，需要從制造商購買軟件。暗箱紫外可見分光光度計怎么樣</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="暗箱紫外可見分光光度計怎么樣,紫外可見分光光度計" src="https://tyunfile.71360.com/WaterMark/UploadFile/ydfx123/637396594919157259/9098588.png"></div><p> 光譜范圍紫外可見光譜區(qū)通常指190nm～780nm的波長范圍，但實際的分光光度計設(shè)計中，經(jīng)常將波長向長波方向拓展，進(jìn)入短波近紅外區(qū)。在120多種國外產(chǎn)品中，有52種波長≤900nm，其中≤800nm的*11種。而>900nm的有72種，占了多數(shù)。固定光柵型受硅陣列探測器的限制，1100nm是其波長的上限。掃描光柵型使用分立光電器件，波長的擴展更為靈活。 </p> <p> 波長的準(zhǔn)確性：*有16種偏差超過1nm，其余大多在01～1之間。其中突出的是Varian的Cary100/300，它們在6561nm處的波長準(zhǔn)確性達(dá)到了002nm的水平。波長重復(fù)性大于05nm的*7種，01～05nm之間的占了多數(shù)，共有68種，還有相當(dāng)數(shù)量的產(chǎn)品達(dá)到了優(yōu)于01nm的水平。如Agilent的8453(002)、Beckman的DU7000series(005)、Camspec的M400T/PC(005)、GBC的Centra10/20/40(004)、Hitachi的U3010/3310(005)、PerkinElmer的Lambda系列(002～005)、ScincoCO的S-1100/3130/3150(002)、Shimadzu的MS1500(001)和UV1201(003)、Varian的Cary系列(0008～0025)等。雖然從原理上，固定光柵型的設(shè)計結(jié)構(gòu)固定、簡單，易于實現(xiàn)好的波長準(zhǔn)確性和重復(fù)性，但掃描光柵的設(shè)計制造工藝已十分成熟。手持紫外可見分光光度計性價比紫外-可見分光光度法是利用某些物質(zhì)的分子吸收200--800nm光譜區(qū)的輻射來進(jìn)行分析測定的方法。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="暗箱紫外可見分光光度計怎么樣,紫外可見分光光度計" src="https://tyunfile.71360.com/WaterMark/UploadFile/ydfx123/637396592155319523/9592810.png"></div><p> 常見的可見分光光度計和紫外可見分光光度計的型號有哪些? </p> <p> 可見分光光度計常見的有721系列，722系列和723系列。721系列可見分光光度計有721/721-100型，測定波長為360-800nm，分為分指針和數(shù)顯式兩種方式的顯示器。其中721-100型相對于721是型將測試樣品室加寬，可用10cm的比色皿，為糖廠**檢測儀器。722系列可見分光光度計有722/722S/722N型，測定波長為330-1000nm/325-1000nm。722型波長是330-1000nm，722S與722N的波長范圍325-1000nm，其中722N是自動調(diào)節(jié)波長。723系列可見分光光度計有723/723N/723PC/723PCS型四種，測定波長為320-1000nm，其中723是手動調(diào)整波長，723N是自動調(diào)波長，723PC配有掃描軟件，723PCS帶有掃描軟件和打印機。紫外可見分光光度計常見的是UV752/UV752N，波長范圍是195nm-1020nm。二者<span style="display:none;"></span>主要區(qū)別是UV752N可以選配打印機將數(shù)據(jù)輸出，其中在雜散光參數(shù)，光譜帶寬等方面還有細(xì)微的差別。 </p><p> 光柵實現(xiàn)上就是一系列等寬、等距離的平行狹縫，它是利用光的衍射與干涉作用制成的。光柵作為色散元件具有不少獨特的優(yōu)點，光柵單色器的分辨率比棱鏡單色器的分辨率高，可精確到0.2nm，而且可用的波長范圍也比棱鏡單色器的范圍寬。所以，目前生產(chǎn)的紫外可見分光光度計大多采用光柵作為色散元件。 </p> <p> 吸收池是用于盛裝待測液并決定待測溶液透光液層厚度的器皿，又稱比色皿。吸收池一般為長方體，也有圓形或其它形狀的。其底及兩側(cè)為毛玻璃，另兩面為光學(xué)透光面。根據(jù)光學(xué)透光面的材質(zhì)，吸收池又可分為玻璃吸收池和石英吸收池兩種。玻璃吸收池用于可見光區(qū)測定，石英吸收池用于紫外光區(qū)的測定。吸收池的規(guī)格以光程為標(biāo)志。常用的吸收池規(guī)格有0.5cm、1.0cm、2.0cm、3.0cm、5.0cm等。分光光度計元器件方面，經(jīng)歷了棱鏡、機刻光柵和全息光柵，商品化的全息閃耀光柵已迅速取代一般刻劃光柵。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="暗箱紫外可見分光光度計怎么樣,紫外可見分光光度計" src="https://tyunfile.71360.com/WaterMark/UploadFile/ydfx123/637396592216930546/1658567.png"></div><p style="text-indent:25px">紫外分光光度計檢測器是將光信號轉(zhuǎn)變?yōu)殡娦盘柕难b置。測量吸光度時，并非直接測量透過吸收池的光強度，而是將光強度轉(zhuǎn)換成電流進(jìn)行測量，這種光電轉(zhuǎn)換器件稱為檢測器，又叫接受器。常用的檢測器有光電池、光電管、光電倍增管及光電二極管陣列檢測器等。光電池價格便宜，但長時間曝光，會使靈敏度降低。光電管的靈敏度比光電池高；光電倍增管不*靈敏度比普通光電管高，而且響應(yīng)速度快，目前中、高性能分光光度計中一般采用它作為檢測器。光電二極管陣列檢測器是紫外可見分光光度計檢測的一個重要進(jìn)展。金屬離子常與有機物形成絡(luò)合物，多數(shù)絡(luò)合物在紫外可見區(qū)是有吸收的，我們可以利用分光光度法來研究其組成。石油紫外可見分光光度計報價</p><p style="text-indent:25px">紫外可見分光光度計主要由光源系統(tǒng)、單色器系統(tǒng)、樣品室、檢測系統(tǒng)組成。暗箱紫外可見分光光度計怎么樣</p><p> 雙光束UV：經(jīng)棱鏡分光后通過光柵，加強了靈敏度，同時測量空白樣品與目標(biāo)樣品的優(yōu)點，全波段分析時間長。全波段UV：樣品與空白樣品可以暴露在空氣中，照射樣品后，進(jìn)入密閉箱，通過光柵，進(jìn)入DAD檢測器檢測。檢測樣品不需要密閉，外界光線對測試無影響，使用方便準(zhǔn)確且空白只需要檢測一次，全波段分析時間小于1s。 </p> <p> 紫外可見光分光光度計的體積大小以及外觀美學(xué)性。紫外可見分光光度計的儀器體積大小，會牽扯儀器所需要的擺放位置以及儀器使用的方便程度。 </p> <p> 儀器的外形美觀，給人以大氣、上檔次、舒適、新鮮的感覺。首先，會讓使用儀器者對儀器分外的愛護(hù)、維護(hù)和保養(yǎng)，有利于延長儀器的使用壽命。同時，也會讓儀器使用者的工作環(huán)境更舒適、優(yōu)美，也有利于提高工作效率。 </p> <p> 紫外可見光分光光度計儀器使用范圍。紫外可見光分光光度的使用范圍是有儀器的性能指標(biāo)所決定。采購紫外可見光分光光度計根據(jù)測試樣品的具體要求，參考儀器的使用范圍，滿足即可，不必苛求。當(dāng)然，土豪可以忽略。暗箱紫外可見分光光度計怎么樣</p><p style="text-indent:25px">上海儀電分析儀器有限公司一直專注于儀器儀表、電子元器件及相關(guān)的系統(tǒng)集成的生產(chǎn)、服務(wù)及銷售，計算機軟件開發(fā)及銷售，從事貨物進(jìn)出口及技術(shù)進(jìn)出口業(yè)務(wù)。【依法須經(jīng)批準(zhǔn)的項目，經(jīng)相關(guān)部門批準(zhǔn)后方可開展經(jīng)營活動】儀器儀表、電子元器件及相關(guān)的系統(tǒng)集成的生產(chǎn)、服務(wù)及銷售，計算機軟件開發(fā)及銷售，從事貨物進(jìn)出口及技術(shù)進(jìn)出口業(yè)務(wù)?！疽婪毥?jīng)批準(zhǔn)的項目，經(jīng)相關(guān)部門批準(zhǔn)后方可開展經(jīng)營活動】，是一家儀器儀表的企業(yè)，擁有自己**的技術(shù)體系。公司目前擁有專業(yè)的技術(shù)員工，為員工提供廣闊的發(fā)展平臺與成長空間，為客戶提供高質(zhì)的產(chǎn)品服務(wù)，深受員工與客戶好評。上海儀電分析儀器有限公司主營業(yè)務(wù)涵蓋分光光度計，氣相色譜，原子吸收，食品安全，堅持“質(zhì)量保證、良好服務(wù)、顧客滿意”的質(zhì)量方針，贏得廣大客戶的支持和信賴。公司深耕分光光度計，氣相色譜，原子吸收，食品安全，正積蓄著更大的能量，向更廣闊的空間、更寬泛的領(lǐng)域拓展。</p></p><br /><p>文章來源地址: http://m.cdcfah.com/cp/1816709.html</p></div></div></div></div></div><div id="nxuhegi" class="page-right twoColRt"><div id="eoqnkmj" class="box01 margin10 clearfix"><h3><a href="http://m.cdcfah.com/cp/">猜你喜歡</a></h3><div id="vkh37gn" class="recomPic likePro"><a href="http://m.cdcfah.com/cp/814588.html"><div><img 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