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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="kusymqc" 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="8cwqecy" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價(jià)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>可靠紫外可見分光光度計(jì)經(jīng)銷商,紫外可見分光光度計(jì)</p><p><span>***更新：</span>2020-10-31 11:27:16</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="8mquoao" 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(hào)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="8am0gc8" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="cmsycom" class="box"><p>紫外可見分光光度計(jì)使用中常見問題解析 <p> 在一般分光光度計(jì)的使用說明書上，要求儀器預(yù)熱時(shí)間約20分鐘；若是帶微處理器的分光光度計(jì)，開機(jī)后儀器自動(dòng)進(jìn)入自檢(初始化)狀態(tài)，約需1O分鐘左右。在分光光度計(jì)預(yù)熱這個(gè)環(huán)節(jié)上，很多使用者或多或少存在問題，如開機(jī)只預(yù)熱電路系統(tǒng)(不調(diào)節(jié)波長、打開吸收池暗箱蓋預(yù)熱等)或認(rèn)為初始化過程就是預(yù)熱等等，可靠紫外可見分光光度計(jì)經(jīng)銷商，可靠紫外可見分光光度計(jì)經(jīng)銷商。對(duì)帶微處理器有自檢功能的分光光度計(jì)，開機(jī)后儀器自檢(初始化)結(jié)束后，在測定窗口上，設(shè)置所需波長值，可靠紫外可見分光光度計(jì)經(jīng)銷商，用一個(gè)吸收池裝上純凈水置于光路上，調(diào)“0000A”后，預(yù)熱儀器，當(dāng)儀器顯示讀數(shù)不再變化后即可進(jìn)行測定。 </p> <p> 對(duì)于紫外可見分光光度計(jì)，由于有雙光源(鎢燈與氘燈)，為了延長燈的使用壽命，開機(jī)自檢完成后可以關(guān)掉測定時(shí)不用的光源燈。實(shí)驗(yàn)室選擇時(shí)需要根據(jù)自己實(shí)驗(yàn)室的需要和目的用途來考慮?？煽孔贤饪梢姺止夤舛扔?jì)經(jīng)銷商</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="可靠紫外可見分光光度計(jì)經(jīng)銷商,紫外可見分光光度計(jì)" src="https://tyunfile.71360.com/WaterMark/UploadFile/ydfx123/637396594919157259/9098588.png"></div><p> 紫外-可見分光光度計(jì)（UV）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)用范圍包括市政和工業(yè)廢水，飲用水，加工過程用水，地表水，冷卻水和鍋爐補(bǔ)給水等。 </p> <p> 在水和廢水監(jiān)測中的應(yīng)用，對(duì)于一個(gè)水系的監(jiān)測分析和綜合評(píng)價(jià)，一般包括水相（溶液本身）、固相（懸浮物、底質(zhì)）、生物相（水生生物）。在水質(zhì)的常規(guī)監(jiān)測中，紫外可見分光光度法占有較大的比重。由于水和廢水的成分復(fù)雜多變，待測物的濃度和干擾物的濃度差別很大，在具體分析時(shí)必須選擇好分析方法。 </p> <p> 在農(nóng)產(chǎn)品和食品分析中可用于檢測的組分或成分有蛋白質(zhì)、賴氨酸、葡萄糖、維生素C、硝酸鹽、亞硝酸鹽、砷、汞等; </p> <p> 在植物生化分析中可用于檢測葉綠素、全氮和酶的活力等； </p> <p> 在飼料分析中可用于檢測煙酸、棉酚、磷化氫和甲酯等。原理紫外可見吸收光譜主要產(chǎn)生于分子價(jià)電子在能級(jí)間的躍遷。利用一定頻率的紫外--可見光照射被分析的物質(zhì)，引起分子中價(jià)電子的躍遷，它將有選擇地被吸收。吸收光譜可以反映出物質(zhì)的特征。它對(duì)物質(zhì)進(jìn)行定性分析、定量分析及結(jié)構(gòu)分析,所依據(jù)的光譜是分子或離子吸收入射光中特定波長的光而產(chǎn)生的吸收光譜。分析檢測紫外可見分光光度計(jì)廠家供應(yīng)實(shí)驗(yàn)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。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="可靠紫外可見分光光度計(jì)經(jīng)銷商,紫外可見分光光度計(jì)" src="https://tyunfile.71360.com/WaterMark/UploadFile/ydfx123/637396593980700101/5381945.png"></div><p style="text-indent:25px">紫外可見分光光度計(jì)的展望紫外可見分光光度計(jì)雖然是一類有著很長歷史的分析儀器，但每一次吸收了新的技術(shù)成果都使它煥發(fā)出新的活力。掃描光柵型分光光度計(jì)依托成熟的設(shè)計(jì)制造工藝，并結(jié)合計(jì)算機(jī)控制等新的技術(shù)成果，仍有很強(qiáng)的生命力。在很多方面，掃描型產(chǎn)品仍體現(xiàn)了技術(shù)水平。陣列式探測器的產(chǎn)生直接促成了固定光柵分光光度計(jì)的設(shè)計(jì)，使得它在測量地更快、更穩(wěn)定、適應(yīng)性更強(qiáng)的方向邁出了一大步。并且，從今后的發(fā)展來看，儀器的小型化、在線化，測量的現(xiàn)場化、實(shí)時(shí)化將是一大方向。要使分光光度計(jì)走出實(shí)驗(yàn)室，成為一種應(yīng)用更廣，更為普及的測量分析設(shè)備，陣列式探測器以及其它的固態(tài)式設(shè)計(jì)可發(fā)揮重要的作用。光纖也將是其中的一項(xiàng)重要技術(shù)，它已使得紫外可見分光光度計(jì)的使用變得更方便，同時(shí)也使分光光度計(jì)的配置變得更靈活。光纖結(jié)合模塊化設(shè)計(jì)，可能使得分光光度計(jì)可以突破完全固定、靜態(tài)的組成，而變成可以自由搭配，自助式構(gòu)建的儀器。光纖同時(shí)也是實(shí)現(xiàn)在線測量的重要手段。計(jì)算機(jī)技術(shù)的影響將更為增進(jìn)。分光光度計(jì)的自動(dòng)化、智能化是一個(gè)方面。另一方面，軟件已經(jīng)在一定程度上使實(shí)在的儀器接近了虛擬的程序，網(wǎng)絡(luò)和信息技術(shù)的結(jié)合可能帶來進(jìn)一步的影響。</p>你的眼鏡真的防紫外嗎？紫外分光光度計(jì)告訴你 <p> 市場上的眼鏡多種多樣，有的近視沒辦法必須佩戴眼鏡，有的為了美觀，佩戴個(gè)眼鏡，還有些工作要求，需要佩戴眼鏡保護(hù)眼鏡。 </p> <p> 很多眼鏡都號(hào)稱是防紫外線的，這些眼鏡真的防紫外線嗎？ </p> <p> 早期的眼鏡是玻璃的，玻璃的很重，硬度高，現(xiàn)在幾乎被樹脂材料取代了。 </p> <p> 這些眼鏡是不是真的防紫外線呢？我們實(shí)驗(yàn)室的用數(shù)據(jù)來說話，很簡單的方法，只要我們有一臺(tái)紫外分光光度計(jì)就可以了。 </p> <p> 這里選擇了三款眼鏡，A款是公司要求佩戴的護(hù)目鏡，B款是可變色的近視眼鏡，C款為無框的近視眼鏡。 </p> <p> <br /> </p> <p> 在紫外分光光度計(jì)，選擇200-400nm波長掃描，間隔1nm就可以了，節(jié)約時(shí)間可以設(shè)置為間隔2nm?？諝庾隹瞻讙呙韬螅瑢⒏餮坨R放置在比色皿的位置，目的是讓光能穿過眼鏡，再波長掃描。 </p> <p> <br /> 為了測量吸光值，分光光度計(jì)制造商通常使用光電倍增管（photo-multiplier tubes，PMTs）和光敏二極管。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="可靠紫外可見分光光度計(jì)經(jīng)銷商,紫外可見分光光度計(jì)" src="https://tyunfile.71360.com/WaterMark/UploadFile/ydfx123/637396593091764635/4502162.png"></div><p> 紫外可見分光光度計(jì)是一類很重要的實(shí)驗(yàn)室分析儀器，無論在物理學(xué)、化學(xué)、生物學(xué)、醫(yī)學(xué)、材料學(xué)、環(huán)境科學(xué)等科學(xué)研究領(lǐng)域，還是在化工、醫(yī)藥、環(huán)境檢測、冶金等現(xiàn)代化生產(chǎn)與管理部門，紫外可見分光光度計(jì)都有面向廣的應(yīng)用。 </p> <p> 紫外可見分光光度計(jì)校正 </p> <p> 開機(jī)預(yù)熱10分鐘足矣； </p> <p> 放入黑塊和標(biāo)樣（沒有的自己配），關(guān)閉蓋子； </p> <p> 校0； </p> <p> 把燈光對(duì)著黑塊，把透光度調(diào)0； </p> <p> 把燈光對(duì)標(biāo)樣，將吸光度調(diào)到100%。 </p> <p> 紫外可見分光光度計(jì)使用注意事項(xiàng) </p> <p> 開機(jī)前應(yīng)先預(yù)熱15分鐘，然后開機(jī)自檢； </p> <p> 濕度要控制在75%左右，溫度在5～30度之間； </p> <p> 儀器要穩(wěn)壓電源，接地要好。并且避免陽光直接照射。一般來說，紫外光分光光度計(jì)分為單光束和雙光束兩類。司法檢測紫外可見分光光度計(jì)現(xiàn)貨</p><p style="text-indent:25px">紫外可見分光光度計(jì)基本工作原理和紅外光譜儀相似，利用一定頻率的紫外可見光照射被分析的有機(jī)物質(zhì)?？煽孔贤饪梢姺止夤舛扔?jì)經(jīng)銷商</p><p style="text-indent:25px">儀器儀表是用以檢出、測量、觀察、計(jì)算各種物理量、物質(zhì)成分、物性參數(shù)等的器具或設(shè)備。真空檢漏儀、壓力表、測長儀、顯微鏡、乘法器等均屬于儀器儀表。近年來，得益于機(jī)械、冶金、石化行業(yè)等儀器儀表服務(wù)領(lǐng)域經(jīng)營狀況的好轉(zhuǎn)，我國儀器儀表制造業(yè)發(fā)展一路向好。儀器儀表在工業(yè)生產(chǎn)過程中扮演著重要的角色，用到各種各樣的儀器儀表，如分光光度計(jì)，氣相色譜，原子吸收，食品安全等為工業(yè)的檢驗(yàn)、測量和計(jì)量提供技術(shù)支撐。目前我國儀器儀表、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(jì)算機(jī)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(xiàng)目，經(jīng)相關(guān)部門批準(zhǔn)后方可開展經(jīng)營活動(dòng)】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(jì)算機(jī)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(xiàng)目，經(jīng)相關(guān)部門批準(zhǔn)后方可開展經(jīng)營活動(dòng)】產(chǎn)品，主要集中在中低檔市場，而市場則主要被國外品牌所占據(jù)。在某些領(lǐng)域，國產(chǎn)產(chǎn)品甚至是空白，這就需要未來我國儀器儀表向市場進(jìn)軍，擴(kuò)大產(chǎn)品占比。盡管在我國相關(guān)政策的引導(dǎo)和支持下，我國儀器儀表行業(yè)得到了飛速發(fā)展。但是從銷售整體上看，我國的儀器儀表行業(yè)還是落后于國際水平的。重點(diǎn)技術(shù)缺乏、高精尖產(chǎn)品嚴(yán)重依賴進(jìn)口、儀器儀表產(chǎn)品同質(zhì)化嚴(yán)重、生產(chǎn)工藝落后、研發(fā)能力弱、精度不高等問題的凸顯，為儀器儀表行業(yè)的發(fā)展帶來了嚴(yán)峻的挑戰(zhàn)?？煽孔贤饪梢姺止夤舛扔?jì)經(jīng)銷商</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(jì)算機(jī)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(xiàng)目，經(jīng)相關(guān)部門批準(zhǔn)后方可開展經(jīng)營活動(dòng)】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(jì)算機(jī)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(xiàng)目，經(jīng)相關(guān)部門批準(zhǔn)后方可開展經(jīng)營活動(dòng)】，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(tái)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(píng)。公司業(yè)務(wù)范圍主要包括：分光光度計(jì)，氣相色譜，原子吸收，食品安全等。公司奉行顧客至上、質(zhì)量為本的經(jīng)營宗旨，深受客戶好評(píng)。公司深耕分光光度計(jì)，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://www.cdcfah.com/cp/1789492.html</p></div></div></div></div></div><div id="yugmqcq" class="page-right twoColRt"><div id="qwsi0m8" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="wswmq8k" class="recomPic likePro"><a 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