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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>建材原子吸收分光光度計(jì)廠家,原子吸收分光光度計(jì)</p><p><span>***更新：</span>2021-01-14 03:18:37</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="nr8yq8f" 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="bh3ldk7" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="ayv7ahj" class="box"><p><p style="text-indent:25px">原子吸收分光光度計(jì)，所謂微量元素，在環(huán)境地球化學(xué)中，指*占地球組成部分的0.01的60余種元素，微量元素分析儀的合量一般在1×10-8~1×108。在醫(yī)學(xué)領(lǐng)域從人體結(jié)構(gòu)來看，建材原子吸收分光光度計(jì)廠家，占人體總重量萬分之一以下者即為微量元素，建材原子吸收分光光度計(jì)廠家。什么是需微量元素和條性微量元素從營(yíng)養(yǎng)化學(xué)、毒理學(xué)和環(huán)境污染等研討角度出發(fā)將微量元素分紅需微量元素或營(yíng)養(yǎng)微量元素和毒性微量元素，建材原子吸收分光光度計(jì)廠家。原子吸收分光光度計(jì)微量元素分析儀廠家生產(chǎn)的微量元素分析儀需徵量元素是指能維持人體正常功用或結(jié)構(gòu)所需的微量元素，每日只需攝入Q.01g以下，即能滿足人體生理功用的需求。原子吸收分光光度計(jì)多應(yīng)用于各種氣體，金屬有機(jī)化合物，金屬醇鹽中微量元素的分析。建材原子吸收分光光度計(jì)廠家</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="建材原子吸收分光光度計(jì)廠家,原子吸收分光光度計(jì)" src="https://tyunfile.71360.com/WaterMark/UploadFile/ydfx123/637419991326259040/7441452.png"></div><p style="text-indent:25px">原子吸收分光光度計(jì)剖析是現(xiàn)在很靈敏的方法之一?；鹧嬖游盏南鄬?duì)靈敏度為ug/ml-ng/ml，無火焰原子吸收分光光度計(jì)的肯定靈敏度在10-10-10-14之間。如果采取預(yù)富集，可進(jìn)一步進(jìn)步剖析靈敏度。因?yàn)樵摲椒ǖ撵`敏度高，使剖析手續(xù)簡(jiǎn)化可直接測(cè)定，則縮短剖析周期加快丈量進(jìn)程。因?yàn)殪`敏度高，則需樣量少。微量進(jìn)樣熱核的引進(jìn)，可使火趣味的需樣量少至20-300ul。無火焰原子吸收分光光度計(jì)剖析的需樣量*5–100ul。固體直接進(jìn)樣石墨爐原子吸收法*需0.005-30mg，這關(guān)于實(shí)驗(yàn)來歷困難的剖析是很為有利的。低端原子吸收分光光度計(jì)報(bào)價(jià)原子吸收分光光度計(jì)即每種待測(cè)元素都要有一個(gè)能發(fā)射特定波長(zhǎng)譜線的光源。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="建材原子吸收分光光度計(jì)廠家,原子吸收分光光度計(jì)" src="https://tyunfile.71360.com/WaterMark/UploadFile/ydfx123/637419991236161257/4858141.png"></div><p style="text-indent:25px">原子吸收分光光度計(jì)每次燃燒前檢查廢液管是否打好水封；確認(rèn)水封無誤時(shí)方可開機(jī)燃燒。乙炔鋼瓶放置在接近儀器室的房間內(nèi)，保持空氣流通，并應(yīng)有防火標(biāo)識(shí)。必定要運(yùn)用的乙炔**減壓閥，并裝有防回火設(shè)備。乙炔減壓閥的出口壓力為0.07MPa，不能大于0.1MPa，空氣出口壓力在0.25-0.3MPa。鋼瓶壓力顯示低于0.3MPa時(shí)要更換新瓶。乙炔氣源鄰近禁止明火或過熱高溫物體寄存，乙炔氣源不應(yīng)與氧化性氣源同放。排放的廢液應(yīng)及時(shí)傾倒處理或與當(dāng)?shù)丨h(huán)保部門。禁止帶電插拔數(shù)據(jù)線纜。</p><p style="text-indent:25px">原子吸收分光光度計(jì)的優(yōu)點(diǎn)是：（1）檢出限低，靈敏度高?；鹧嬖游辗ǖ臋z出限可達(dá)10-9g（ppm級(jí)），石墨爐原子吸收法更高，可達(dá)ppb級(jí)。（2）丈量精度好。火焰原子吸收法測(cè)定中等和高含量元素的相對(duì)偏差可小于0.01，丈量精度已接近于經(jīng)典化學(xué)辦法。石墨爐原子吸收法的丈量精度一般為3-5。樣品由載氣（氬）帶入霧化系統(tǒng)進(jìn)行霧化后，以氣溶膠形式進(jìn)入等離子體的軸向通道，在高溫文惰性氣氛中被充沛蒸騰、原子化、電離和激起，發(fā)射出所含元素的特征譜線。依據(jù)特征譜線的存在與否，鑒別樣品中是否含有某種元素（定性分析）；根依據(jù)特征譜線強(qiáng)度確定樣品中相應(yīng)元素的含量（定量分析）。原子吸收分光光度計(jì)使儀器顯示數(shù)字化、進(jìn)樣自動(dòng)化。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="建材原子吸收分光光度計(jì)廠家,原子吸收分光光度計(jì)" src="https://tyunfile.71360.com/WaterMark/UploadFile/ydfx123/637419991252020619/9480950.png"></div><p style="text-indent:25px">原子吸收光譜儀又稱原子吸收分光光度計(jì)，根據(jù)物質(zhì)基態(tài)原子蒸汽對(duì)特征輻射吸收的作用來進(jìn)行金屬元素分析。它能夠靈敏可靠地測(cè)定微量或痕量元素。氣態(tài)的原子能發(fā)射某些特征譜線，也能吸收同樣波長(zhǎng)的這些譜線。這是歷史上用原子吸收光譜進(jìn)行定性分析的一例證。很長(zhǎng)一段時(shí)間，原子吸收主要局限于天體物理方面的研究，在分析化學(xué)中的應(yīng)用未能引起重視，其主要原因是未找到可產(chǎn)生銳線光譜的光源。直至20世紀(jì)30年代，由于汞的多應(yīng)用，對(duì)大氣中微量汞的測(cè)定曾利用原子吸收光譜原理設(shè)計(jì)了測(cè)汞儀，這是原子吸收在分析中的早應(yīng)用。原子吸收分光光度計(jì)國(guó)產(chǎn)的原子吸收分光光度計(jì)，都可配備各種型號(hào)的氫化物發(fā)生器。全自動(dòng)原子吸收分光光度計(jì)現(xiàn)貨</p><p style="text-indent:25px">原子吸收分光光度計(jì)主要原因是未找到可產(chǎn)生銳線光譜的光源。建材原子吸收分光光度計(jì)廠家</p><p style="text-indent:25px">原子吸收分光光度計(jì)的開展：1981年原子吸收分光光度計(jì)完成操作自動(dòng)化。1984年首臺(tái)連續(xù)氫化物發(fā)生器面世。1990年推出世界上先進(jìn)的MarkV1焰燃燒頭。1995年在線火焰自動(dòng)進(jìn)樣器（SIPS8）研制成功并投入運(yùn)用。1998年首臺(tái)快速剖析火焰原子吸收220FS誕生。2002年世界上**火焰和石墨爐同時(shí)剖析的原子吸收光譜儀出產(chǎn)并投放市場(chǎng)。原子吸收分光光度計(jì)怎樣用才正確？該崗位群主要是散布于冶金、環(huán)保、食物、制藥、醫(yī)療衛(wèi)生、化學(xué)、化工、農(nóng)業(yè)等領(lǐng)域，主要從事環(huán)境和產(chǎn)品中金屬物質(zhì)的檢驗(yàn)以及科學(xué)研制的質(zhì)量操控等工作。建材原子吸收分光光度計(jì)廠家</p><p style="text-indent:25px">上海儀電分析儀器有限公司主要經(jīng)營(yíng)范圍是儀器儀表，擁有一支專業(yè)技術(shù)團(tuán)隊(duì)和良好的市場(chǎng)口碑。公司業(yè)務(wù)涵蓋分光光度計(jì)，氣相色譜，原子吸收，食品安全等，價(jià)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(jì)、強(qiáng)大的技術(shù)，還有一批**的專業(yè)化的隊(duì)伍，確保為客戶提供良好的產(chǎn)品及服務(wù)。儀電分析秉承“客戶為尊、服務(wù)為榮、創(chuàng)意為先、技術(shù)為實(shí)”的經(jīng)營(yíng)理念，全力打造公司的重點(diǎn)競(jìng)爭(zhēng)力。</p></p><br /><p>文章來源地址: http://m.cdcfah.com/cp/2836312.html</p></div></div></div></div></div><div id="3n2owik" class="page-right twoColRt"><div id="qvs93x7" class="box01 margin10 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