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src="https://tyunfile.71360.com/WaterMark/UploadFile/ydfx123/637419991385859509/5179129.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="nxxtpjv" 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>三用原子吸收分光光度計(jì)怎么樣,原子吸收分光光度計(jì)</p><p><span>***更新：</span>2020-12-27 01:14:07</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="v77zv9x" 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(huà): </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(xiàn)] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="zbxrlpv" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="prdr7zd" class="box"><p><p style="text-indent:25px">原子吸收分光光度計(jì)作業(yè)曲線(xiàn)一向不穩(wěn)定，熒光值穩(wěn)定性差，讀書(shū)單方向加大或削減，或停止一會(huì)后持續(xù)作業(yè)，讀數(shù)變大超差?？赡苄纬傻脑蚴菬衾匣?，空心陰方燈不穩(wěn)，發(fā)射光的強(qiáng)度有隨溫度增高而加大或變小的漂移現(xiàn)象，消除的辦法是用反向電流予以激發(fā)，改進(jìn)性能，激發(fā)無(wú)效果，予以換燈，三用原子吸收分光光度計(jì)怎么樣。此外，鹽酸、容器、水污染，取主規(guī)范溶液時(shí)的偶然誤差也是形成作業(yè)曲線(xiàn)線(xiàn)性關(guān)系差的原因。電壓缺乏，點(diǎn)火電路絲氧化變細(xì)，KBH4寄存時(shí)間過(guò)久或量少，樣品溶液酸度不夠，三用原子吸收分光光度計(jì)怎么樣，三用原子吸收分光光度計(jì)怎么樣。掃除辦法是使用穩(wěn)壓器確保220V供電，替換電爐絲，從頭配制KBH4，調(diào)大鹽酸濃度。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。三用原子吸收分光光度計(jì)怎么樣</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="三用原子吸收分光光度計(jì)怎么樣,原子吸收分光光度計(jì)" src="https://tyunfile.71360.com/WaterMark/UploadFile/ydfx123/637419991385859509/5179129.png"></div><p style="text-indent:25px">原子吸收分光光度計(jì)翻開(kāi)乙炔鋼瓶總閥，查看是否漏氣，長(zhǎng)按焚燒開(kāi)關(guān)，直至焚燒成功。將進(jìn)樣管放到裝有規(guī)范空白溶液的試劑瓶中，點(diǎn)擊"開(kāi)端"按鈕，把進(jìn)樣管放到不同的試劑瓶中吸取對(duì)應(yīng)的溶液，并點(diǎn)擊"讀數(shù)"按鈕，點(diǎn)擊"打印機(jī)"按鈕，設(shè)置對(duì)應(yīng)的參數(shù)，并點(diǎn)擊"打印預(yù)覽"按鈕，點(diǎn)擊打印。挑選主界面的Worksheet按鈕，挑選剖析菜單，點(diǎn)擊"火焰實(shí)用工具"按鈕，點(diǎn)擊"封閉元素?zé)?按鈕。封閉乙炔氣閥，焚燒，把管道中殘缺的乙炔焚燒完。封閉空氣壓縮機(jī)，封閉排水。封閉軟件，點(diǎn)擊"文件"按鈕，點(diǎn)擊"封閉所有文件"按鈕，點(diǎn)擊"EXIT"按鈕。封閉儀器主機(jī)電源，封閉通風(fēng)器。工業(yè)原子吸收分光光度計(jì)原子吸收分光光度計(jì)應(yīng)用不普遍。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="三用原子吸收分光光度計(jì)怎么樣,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">原子吸收分光光度計(jì)會(huì)形成免疫功用缺失：微量元素分析儀廠(chǎng)家生產(chǎn)的微量元素分析儀指出缺硒是導(dǎo)致胃潰瘍病等胃部疾病的一個(gè)重要因素。人體內(nèi)硒水平的下降，會(huì)形成免疫功用缺失及抗氧化才干的下降，引起胃粘膜屏障不穩(wěn)定，黃嘌呤氧化酶在應(yīng)急情況下會(huì)持續(xù)升高，形成胃粘膜缺血性損害，氧自由基增多，導(dǎo)致胃炎、胃潰瘍等消化系統(tǒng)病變。原子吸收分光光度計(jì)。硒是一種天然抗氧化劑，微量元素分析儀指出補(bǔ)硒能迅速進(jìn)步人體含硒酶活性，能有用按捺活性氧生成，增強(qiáng)機(jī)體抗氧化功用，鏟除人體代謝進(jìn)程中所產(chǎn)生的自由基，阻撓胃粘膜壞死，促進(jìn)粘膜修正和潰瘍的愈合，防范變。</p><p style="text-indent:25px">原子吸收分光光度計(jì)和ICP的比較：原理：原子吸收分光光度計(jì)：經(jīng)過(guò)測(cè)定某一具有特定波長(zhǎng)的光經(jīng)過(guò)試樣原子蒸氣后被吸收的多少來(lái)測(cè)定被測(cè)元素的含量的一種方法。選擇性強(qiáng)，簡(jiǎn)潔、快速。因?yàn)槠溥x用銳線(xiàn)光源，樣品不需要經(jīng)繁瑣的分離，可在同一溶液中直接測(cè)定多種元素，測(cè)定一個(gè)元素只需要數(shù)分鐘，分析操作簡(jiǎn)潔、迅速?？垢蓴_能力強(qiáng)。原子吸收線(xiàn)數(shù)目少，光譜干擾少，一般不存在共存元素的光譜堆疊干擾。應(yīng)用范圍廣?？蓽y(cè)60多種元素；既能用于微量分析又能用于超微量分析。另外，還可用直接的辦法測(cè)定非金屬元素和有機(jī)化合物。原子吸收分光光度計(jì)具有靈敏度高及選擇性好兩大主要優(yōu)點(diǎn)。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="三用原子吸收分光光度計(jì)怎么樣,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)剖析是現(xiàn)在很靈敏的方法之一。火焰原子吸收的相對(duì)靈敏度為ug/ml-ng/ml，無(wú)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(wú)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(lái)歷困難的剖析是很為有利的。原子吸收分光光度計(jì)一般可檢測(cè)到PPm級(jí)（10-6）。工業(yè)原子吸收分光光度計(jì)</p><p style="text-indent:25px">火焰原子吸收分光光度計(jì)對(duì)大多數(shù)元素有較高靈敏度。三用原子吸收分光光度計(jì)怎么樣</p><p style="text-indent:25px">原子吸收分光光度計(jì)電子體系。在該體系中首要有放大器和A/D變換器等組成，其間放大器便是影響整機(jī)靈敏度和穩(wěn)定性的首要相關(guān)部件。原子吸收分光光度計(jì)輸出打印體系和數(shù)據(jù)處理體系。該體系是決定整機(jī)自動(dòng)化程度的要害部件，可以直接影響紫外可見(jiàn)分光光度計(jì)的質(zhì)量。原子吸收分光光度計(jì)操作注意事項(xiàng):留意進(jìn)樣針的清洗,如果是進(jìn)樣針沾污或許導(dǎo)致液體由于分子張力直接沿著進(jìn)樣針向上走,不能全部加入到管中.留意由于石墨管進(jìn)樣空大小改變,跟著加熱次數(shù)增加,會(huì)有積碳在進(jìn)樣孔結(jié)塊,導(dǎo)致孔變小,導(dǎo)致樣品加入時(shí)不能加入到管壁外面,乃至或許會(huì)呈現(xiàn)進(jìn)樣針插不進(jìn)管子。三用原子吸收分光光度計(jì)怎么樣</p><p 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