上海紫外可見分光光度計經(jīng)銷商客戶至上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="我們都知道，紫外-可見分光光度計是實驗室中出鏡率相當(dāng)高的分析儀器。那么你的使用情況如何呢？你所關(guān)注紫外-可見分光光度計的哪些性能？大家都來說說吧！分光光度法是通過測定被測物質(zhì)，在特定波長處或一定波長范圍內(nèi)光的吸光度或發(fā)光強(qiáng)度，對該物質(zhì)進(jìn)行定"><meta name="keywords" content="上海紫外可見分光光度計經(jīng)銷商,紫外可見分光光度計"><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" content="OBVzrC9aaQ" /> <meta 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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_gxyq/">光學(xué)儀器</a>?<a href="http://www.cdcfah.com/cp/third-gxyq_gpygdj/">光譜儀、光度計</a>?上海紫外可見分光光度計經(jīng)銷商客戶至上上海儀電分析儀器供應(yīng)</p><div id="iryapgn" class="leftbox clearfix"><h1>上海紫外可見分光光度計經(jīng)銷商客戶至上上海儀電分析儀器供應(yīng)</h1><div id="8xri233" class="proBig"><div id="vevcwsz" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/ydfx123/637396593980700101/5381945.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="g2vlxef" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/ydfx123/637396593980700101/5381945.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="2uwdvc3" 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>上海紫外可見分光光度計經(jīng)銷商,紫外可見分光光度計</p><p><span>***更新：</span>2020-10-30 16:57:26</p><p><span id="click" >瀏覽次數(shù)：10次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="u43w0tp" 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="z43jxy2" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="h94xhnk" class="box"><p><p> 我們都知道，紫外-可見分光光度計是實驗室中出鏡率相當(dāng)高的分析儀器。 </p> <p> 那么你的使用情況如何呢？ </p> <p> 你所關(guān)注紫外-可見分光光度計的哪些性能？ </p> <p> 大家都來說說吧！分光光度法是通過測定被測物質(zhì)，在特定波長處或一定波長范圍內(nèi)光的吸光度或發(fā)光強(qiáng)度，對該物質(zhì)進(jìn)行定性和定量分析的方法。紫外-可見分光光度計是元析儀器引用新型技術(shù)，其功能強(qiáng)大，采用單色器技術(shù)，波長范圍190-1100nm，是各種涉及水和廢水分析領(lǐng)域的通用儀器，應(yīng)用范圍包括化工分析以及市政和工業(yè)廢水，上海紫外可見分光光度計經(jīng)銷商，飲用水，上海紫外可見分光光度計經(jīng)銷商，加工過程用水，地表水，上海紫外可見分光光度計經(jīng)銷商，冷卻水和鍋爐補(bǔ)給水等液體的分析。紫外分光光度計可用于藥品的鑒別、純度檢查及含量測定，既可以定性分析，又可以定量分析。上海紫外可見分光光度計經(jīng)銷商</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海紫外可見分光光度計經(jīng)銷商,紫外可見分光光度計" src="https://tyunfile.71360.com/WaterMark/UploadFile/ydfx123/637396593980700101/5381945.png"></div><p>光源和檢測方法（LIGHTSOURCESANDDETECTION）分光光度計的光譜也是需要考慮的一個重要因素。實驗室研究人員希望省錢購入專門儀器定量核酸、蛋白或者細(xì)菌的生長情況。例如AmershamBiosciencesofPiscataway公司的GeneQuantII能在230、260、280、320、595和600nm的波長下測量樣品。果果需要更大的靈活性，研究者可以考慮一種更高性能的寬光譜儀器，可以程序性地進(jìn)行ELISAs分析和比色分析。</p><p>紫外分光光度計一般覆蓋190nm和380nm波長，通常利用氘燈照明。一些特殊的儀器可以提供滿足光子學(xué)和半導(dǎo)體研究需要的光譜范圍。VarianofPaloAlto公司的CaryDeepUV和HitachiHighTechnologiesofTokyo的U-7000AutomatedVacuumUVSystem就是這樣的儀器。</p><p>一些儀器具有多種光源供選擇：紫外光、可見光和甚至紅外光（780nm至3,000nm）。鎢燈和鹵素?zé)粢话阒桓采w可見光部分（大約380nm到800nm）。而氙燈則可以覆蓋紫外光和可見光區(qū)域。便攜紫外可見分光光度計單價分光光度計的氘燈和汞燈是在不同波長的時候有程序控制自動變換的，一般是在360nm處變換。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海紫外可見分光光度計經(jīng)銷商,紫外可見分光光度計" src="https://tyunfile.71360.com/WaterMark/UploadFile/ydfx123/637396593091764635/4502162.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(jī)。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(jī)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> 使用紫外分光光度計的過程中，經(jīng)常會遇到儀器因光源達(dá)不到要求，需要進(jìn)行調(diào)修。要求光源燈處不能有空氣流動，因為單光束儀器很忌諱空氣快速流動而使光源燈的色溫發(fā)生變化。如遇電壓正常而鎢燈不亮?xí)r，就需要更換鎢燈。更換時，不要用手直接接觸燈泡表面，如果手指摸過，應(yīng)用無水乙醇和C4H10O混合液擦拭干凈，否則通電后指印遇熱不能去除。安裝光源燈后要注意調(diào)整光路。光源燈有兩個引線頭，安裝時用導(dǎo)線焊接，主要是防止接觸不良而造成的光源發(fā)光不穩(wěn)現(xiàn)象。在焊接時防止焊點與燈頭銅皮碰上，裝上燈座使電源短路。燈絲要求平直，如果燈絲彎曲，會影響光能量。燈絲的位置要與入射狹縫平行并對準(zhǔn)，上、下、左、右調(diào)節(jié)后緊固螺釘。擰緊燈座的螺紋套，可用鉗子擰緊，一般燈頭盡量往燈座里塞，因為多數(shù)燈絲離燈頭偏高。調(diào)整燈位置的前后可移動整個燈座架，它下面有三個固定螺釘，先稍松后，移動前后位置再固定。一般調(diào)節(jié)鎢燈的位置時，將波長調(diào)到580nm處，狹縫調(diào)到MAX，把一張白紙置于比色皿盒邊出口處，觀察白紙上的光斑。若光斑上方左右角均不完整成半圓弧，可能是光源燈高度不對；光斑左邊或右邊不完整，可調(diào)光源燈底座位置。調(diào)整至白紙上可見明亮、均勻的長方形黃橙色光斑。紫外光分光光度計分為單光束和雙光束兩類。單光束型主要是依賴單束光進(jìn)行測量。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海紫外可見分光光度計經(jīng)銷商,紫外可見分光光度計" src="https://tyunfile.71360.com/WaterMark/UploadFile/ydfx123/637396593771266494/7369055.png"></div><p style="text-indent:25px"><p>綜合評價紫外可見光分光光度計儀器：根據(jù)使用領(lǐng)域進(jìn)行初步篩選，科研、制藥領(lǐng)域注重選擇光譜可調(diào)的紫外可見光分光光度計。其中，制藥中藥檢儀器要符合藥典規(guī)定，光譜帶寬要求為2nm以下。<p>重要性能指標(biāo)的考察，包括：光度準(zhǔn)確度，雜散光，光譜帶寬，穩(wěn)定性，噪聲，波長的準(zhǔn)確度和重復(fù)性是幾個重要指標(biāo)。各指標(biāo)間相互獨立有相互影響，需要綜合考量選購目標(biāo)紫外可見光分光光度計。<p>使用前，閱讀儀器使用說明書和做好儀器使用前的工程師培訓(xùn)。使用過程中，正確操作、認(rèn)真了解儀器指標(biāo)的物理意義和測試方法以及結(jié)合儀器使用中的相關(guān)設(shè)備的調(diào)試。掌握儀器的基本保養(yǎng)維護(hù)知識，建立相關(guān)指標(biāo)與分析測試結(jié)果之間的誤差影響條件，經(jīng)常檢測和調(diào)試儀器，確保儀器處在合適的工作狀態(tài)。在操作紫外可見分光光度計時，操作人員需要留意一下機(jī)器的干燥劑。紫外可見分光光度計排行</p><p style="text-indent:25px">紫外可見分光光度計在開機(jī)前將樣品室內(nèi)的干燥劑取出，儀器自檢過程中禁止打開樣品室蓋。上海紫外可見分光光度計經(jīng)銷商</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。上海紫外可見分光光度計經(jīng)銷商</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，以科技創(chuàng)新實現(xiàn)***管理的追求。儀電分析深耕行業(yè)多年，始終以客戶的需求為向?qū)В瑸榭蛻籼峁?**的分光光度計，氣相色譜，原子吸收，食品安全。儀電分析繼續(xù)堅定不移地走高質(zhì)量發(fā)展道路，既要實現(xiàn)基本面穩(wěn)定增長，又要聚焦關(guān)鍵領(lǐng)域，實現(xiàn)轉(zhuǎn)型再突破。儀電分析始終關(guān)注儀器儀表行業(yè)。滿足市場需求，提高產(chǎn)品價值，是我們前行的力量。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/1776707.html</p></div></div></div></div></div><div id="7y8t3b8" class="page-right twoColRt"><div id="zqcjbnk" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="87ari2a" 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" 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