國內(nèi)紫外可見分光光度計(jì)代理真誠推薦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="紫外可見分光光度計(jì)的發(fā)展分光光度法在分析領(lǐng)域中的應(yīng)用已經(jīng)有數(shù)十年的歷史，至今仍是應(yīng)用常用的分析方法之一。隨著分光元器件及分光技術(shù)、檢測器件與檢測技術(shù)，國內(nèi)紫外可見分光光度計(jì)代理、大規(guī)模集成制造技術(shù)等的發(fā)展，以及單片機(jī)、微處理器、計(jì)算機(jī)和DS"><meta name="keywords" content="國內(nèi)紫外可見分光光度計(jì)代理,紫外可見分光光度計(jì)"><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" 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class="page-proshow clearfix"><p class="current"> 當(dāng)前位置:<a href="http://m.cdcfah.com/">首頁?<a href="http://m.cdcfah.com/cp/">產(chǎn)品供應(yīng)</a>?<a href="http://m.cdcfah.com/cp/first-_yiqiyibiao/">儀器儀表</a>?<a 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(jì)</a>?國內(nèi)紫外可見分光光度計(jì)代理真誠推薦上海儀電分析儀器供應(yīng)</p><div id="mygwk8k" class="leftbox clearfix"><h1>國內(nèi)紫外可見分光光度計(jì)代理真誠推薦上海儀電分析儀器供應(yīng)</h1><div id="ci20uqe" class="proBig"><div id="mq4c2gw" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/ydfx123/637396592124342670/5540999.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="q4o4ge4" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/ydfx123/637396592124342670/5540999.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="4ig2g2m" 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>國內(nèi)紫外可見分光光度計(jì)代理,紫外可見分光光度計(jì)</p><p><span>***更新：</span>2020-11-02 09:24:18</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="gagec0y" 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="ws2qmqm" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="mqgmkqe" class="box"><p><p> 紫外可見分光光度計(jì)的發(fā)展分光光度法在分析領(lǐng)域中的應(yīng)用已經(jīng)有數(shù)十年的歷史，至今仍是應(yīng)用常用的分析方法之一。隨著分光元器件及分光技術(shù)、檢測器件與檢測技術(shù)，國內(nèi)紫外可見分光光度計(jì)代理、大規(guī)模集成制造技術(shù)等的發(fā)展，以及單片機(jī)、微處理器、計(jì)算機(jī)和DSP技術(shù)的應(yīng)用，分光光度計(jì)的性能指標(biāo)不斷提高，并向自動化、智能化、高速化和小型化等方向發(fā)展。 </p> <p> 在分光元器件方面，經(jīng)歷了棱鏡、機(jī)刻光柵和全息光柵的過程，商品化的全息閃耀光柵已迅速取代一般刻劃光柵。在儀器控制方面，隨著單片機(jī)、微處理器的出現(xiàn)以及軟硬件技術(shù)的結(jié)合，從早期的人工控制進(jìn)步到了自動控制。在顯示、記錄與繪圖方面，早期采用表頭(電位計(jì))指示、繪圖儀繪圖，后來用數(shù)字電壓表數(shù)字顯示，如今更多地采用液晶屏幕或計(jì)算機(jī)屏幕顯示。在檢測器方面，國內(nèi)紫外可見分光光度計(jì)代理，早期使用光電池、光電管，國內(nèi)紫外可見分光光度計(jì)代理，后來更普遍地使用光電倍增管甚至光電二極管陣列。陣列型檢測器和凹面光柵的聯(lián)合應(yīng)用，使儀器的測量速度發(fā)生了質(zhì)的飛躍，且性能更加穩(wěn)定可靠，受到儀器用戶的青睞，在儀器構(gòu)型方面，從單光束發(fā)展為雙光束，現(xiàn)在幾乎所有高級分光光度計(jì)都是雙光束的，有些高精度的儀器采用雙單色器。一般來說，紫外光分光光度計(jì)分為單光束和雙光束兩類。國內(nèi)紫外可見分光光度計(jì)代理</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="國內(nèi)紫外可見分光光度計(jì)代理,紫外可見分光光度計(jì)" src="https://tyunfile.71360.com/WaterMark/UploadFile/ydfx123/637396592124342670/5540999.png"></div><p> 紫外可見分光光度計(jì)的比色皿的洗滌方法 </p> <p> 1分光光度法中比色皿潔凈與否是影響測定準(zhǔn)確度的因素之一。因此，必須重視選擇正確的洗凈方法。 </p> <p> 俺的經(jīng)驗(yàn)是：要是你測定溶液是酸，如果不干凈，就用弱堿溶液洗，要是你測定溶液是堿，如果不干凈，就用弱酸溶液洗，要是你測定溶液是有機(jī)物質(zhì)，如果不干凈，就用有機(jī)溶劑，比如酒精等溶液洗。 </p> <p> 2選擇比色皿洗滌液的原則是去污效果好，不損壞比色皿，同時(shí)又不影響測定。 </p> <p> 2.1分析常用的鉻酸洗液不宜用于洗滌比色皿，這是因?yàn)閹谋壬笤谠撓匆褐杏袝r(shí)會局部發(fā)熱，致使比色皿膠接面裂開而損壞。同時(shí)經(jīng)洗液洗滌后的比色皿還很可能殘存微量鉻，其在紫外區(qū)有吸收，因此會影響鉻及其他有關(guān)元素的測定。 </p> <p> 一般主張使用硝酸和過氧化氫(5：1)的混合溶液泡洗，然后用水沖洗干凈。對一般方法難以洗凈的比色皿，還可以采取以下兩種方法。 </p> <p> 2.2先將比色皿侵入含有少量陰離子表面活性劑的碳酸鈉(20克/升)溶液泡洗，經(jīng)水沖洗后，再于過氧化氫和硝酸(5：1)混合溶液中侵泡半小時(shí)。可靠紫外可見分光光度計(jì)怎么樣紫外可見分光光度計(jì)，可以通過更換光源分別形成可見和紫外光區(qū)，測定的波長在200～1000nm。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="國內(nèi)紫外可見分光光度計(jì)代理,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> 把燈光對著黑塊，把透光度調(diào)0； </p> <p> 把燈光對標(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。 </p><p> 色譜技術(shù)比它起步晚了二百多年，但如今的色譜儀器（氣相、液相、氣質(zhì)、液質(zhì)）占了分析界的大半壁江山。相較璀璨如星的各類的色譜儀器，紫外-可見分光光度計(jì)黯然了很多。 </p> <p> 紫外-可見分光光度計(jì)可以被更精確更高級的檢測手段所取代？可以退出“分析史”的舞臺？ </p> <p> NO！NO！NO！ </p> <p> 事實(shí)上紫外-可見分光光度計(jì)（下文簡稱紫外分光光度計(jì)），依然是“分析舞臺”的美玉，低調(diào)有內(nèi)涵，親民有價(jià)值。一起來發(fā)現(xiàn)它在日化產(chǎn)品分析中的美和價(jià)值吧。原理分子的紫外可見吸收光譜是由于分子中的某些基團(tuán)吸收了紫外可見輻射光后，發(fā)生了電子能級躍遷而產(chǎn)生的吸收光譜。由于各種物質(zhì)具有各自不同的分子、原子和分子空間結(jié)構(gòu)，其吸收光能量的情況也就不會相同，因此，每種物質(zhì)都有其特有的、固定的吸收光譜曲線，可根據(jù)吸收光譜上某些特征波長處吸光度的高低判別或測定該物質(zhì)的含量，這就是分光光度定性和定量分析的基礎(chǔ)。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)。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="國內(nèi)紫外可見分光光度計(jì)代理,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">關(guān)于波長準(zhǔn)確度的檢查與校正日常在使用分光光度計(jì)時(shí)，是否要經(jīng)常進(jìn)行儀器波長準(zhǔn)確度的檢查?答案是否定的。當(dāng)在日常測定中發(fā)現(xiàn)儀器測定靈敏度下降，這時(shí)才應(yīng)進(jìn)行波長準(zhǔn)確度的檢查，簡易的檢查方法(粗檢)是：儀器開機(jī)后，調(diào)節(jié)波長為580nm，在吸收池座的通光道中插入一張白色卡片紙，若能觀察到一長方形的黃色光斑，說明波長準(zhǔn)確度屬正常范圍，否則就應(yīng)進(jìn)行波長校正。當(dāng)儀器經(jīng)過長途搬運(yùn)、受過機(jī)械振動或更換光源燈泡后，必須進(jìn)行波長準(zhǔn)確度的檢查與校正。粗檢同上，其校正方法有：干涉濾光片或鐠釹濾光片校正法、利用氘燈的特征發(fā)射線校正法。具體步驟可參考儀器使用說明書。紫外可見光分光光度計(jì)是使用紫外光譜特點(diǎn)而設(shè)計(jì)制造的光學(xué)儀器。國產(chǎn)紫外可見分光光度計(jì)單價(jià)</p><p style="text-indent:25px">使用紫外分光光度計(jì)應(yīng)具備四季恒濕的儀器室，配置恒溫設(shè)備，特別是地處南方地區(qū)的實(shí)驗(yàn)室。國內(nèi)紫外可見分光光度計(jì)代理</p><p> 紫外可見分光光度計(jì)的軟件功能可以極大地提升儀器的使用性能和價(jià)值，現(xiàn)代分光光度計(jì)生產(chǎn)廠商都非常重視儀器配套軟件的開發(fā)。除了儀器控制軟件和通用數(shù)據(jù)分析處理軟件外，很多儀器針對不同行業(yè)應(yīng)用開發(fā)了**分析軟件，給儀器使用者帶來了極大的便利。 </p> <p> 紫外可見分光光度計(jì)的結(jié)構(gòu)一般地，紫外可見分光光度計(jì)主要由光源系統(tǒng)、單色器系統(tǒng)、樣品室、檢測系統(tǒng)組成，如圖1所示。光源發(fā)出的復(fù)合光通過單色器被分解成單色光，當(dāng)單色光通過樣品室時(shí)，一部分被樣品吸收，其余未被吸收的光到達(dá)檢測器，被轉(zhuǎn)變?yōu)殡娦盘?，?jīng)電子電路的放大和數(shù)據(jù)處理后，通過顯示系統(tǒng)給出測量結(jié)果。國內(nèi)紫外可見分光光度計(jì)代理</p><p style="text-indent:25px">上海儀電分析儀器有限公司是一家儀器儀表、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】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】的公司，是一家集研發(fā)、設(shè)計(jì)、生產(chǎn)和銷售為一體的專業(yè)化公司。公司自創(chuàng)立以來，投身于分光光度計(jì)，氣相色譜，原子吸收，食品安全，是儀器儀表的主力軍。儀電分析致力于把技術(shù)上的創(chuàng)新展現(xiàn)成對用戶產(chǎn)品上的貼心，為用戶帶來良好體驗(yàn)。儀電分析始終關(guān)注自身，在風(fēng)云變化的時(shí)代，對自身的建設(shè)毫不懈怠，高度的專注與執(zhí)著使儀電分析在行業(yè)的從容而自信。</p></p><br /><p>文章來源地址: 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