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id="c2gqxew" class="leftbox clearfix"><h1>便攜原子吸收分光光度計(jì)報(bào)價(jià) 誠信互利上海儀電分析儀器供應(yīng)</h1><div id="34dfspm" class="proBig"><div id="i23umoq" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/ydfx123/637419991326259040/7441452.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="atlspr8" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/ydfx123/637419991326259040/7441452.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="3b38txb" 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>便攜原子吸收分光光度計(jì)報(bào)價(jià),原子吸收分光光度計(jì)</p><p><span>***更新：</span>2021-02-03 06:13:55</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="2odkmj7" 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="0kr3hgv" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="pj8yqsz" class="box"><p><p style="text-indent:25px">將試樣中待測元素變成氣態(tài)的基態(tài)原子的過程稱為試樣的“原子化”。完成試樣原子化所用的設(shè)備稱為原子化器或原子化系統(tǒng)。試樣中被測元素原子化的方法主要有火焰原子化法和非火焰原子化法兩種?；鹧嬖踊ɡ没鹧鏌崮苁乖嚇愚D(zhuǎn)化為氣態(tài)原子。非火焰原子化法利用電加熱或化學(xué)還原等方式使試樣轉(zhuǎn)化為氣態(tài)原子。原子化系統(tǒng)在原子吸收分光光度計(jì)中是一個(gè)關(guān)鍵裝置，便攜原子吸收分光光度計(jì)報(bào)價(jià)，它的質(zhì)量對原子吸收光譜分析法的靈敏度和準(zhǔn)確度有比較大影響，便攜原子吸收分光光度計(jì)報(bào)價(jià)，便攜原子吸收分光光度計(jì)報(bào)價(jià)，甚至起到?jīng)Q定性的作用，也是分析誤差較大的一個(gè)來源。原子吸收分光光度計(jì)精密度1%左右。便攜原子吸收分光光度計(jì)報(bào)價(jià)</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="便攜原子吸收分光光度計(jì)報(bào)價(jià),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">原子吸收光譜儀所檢測，導(dǎo)致吸光度值偏高：光譜背景除了波長特征之外，還有時(shí)間、空間分布特征。分子吸收通常先于原子吸收信號之前產(chǎn)生，當(dāng)有快速響應(yīng)電路和記錄裝置時(shí)，可以從時(shí)間上分辨分子吸收和原子吸收信號。樣品蒸氣在石墨爐內(nèi)分布的不均勻性，導(dǎo)致了背景吸收空間分布的不均勻性。提高溫度使單位時(shí)間內(nèi)蒸發(fā)出的背景物的濃度增加，同時(shí)也使分子解離增加。這兩個(gè)因素共同制約著背景吸收。在恒溫爐中，提高溫度和升溫速率，使分子吸收明顯下降。工業(yè)原子吸收分光光度計(jì)對比原子吸收分光光度計(jì)型號繁多，不同型號儀器性能和應(yīng)用范圍不同。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="便攜原子吸收分光光度計(jì)報(bào)價(jià),原子吸收分光光度計(jì)" src="https://tyunfile.71360.com/WaterMark/UploadFile/ydfx123/637419991268710095/3209448.png"></div><p style="text-indent:25px">原子吸收分光光度計(jì)的工作流程：以測定試液中鎂離子的含量為例，先將試液噴射成霧狀并引入到火焰中，含鎂鹽的霧滴在火焰溫度下，蒸發(fā)、離解成鎂原子形成原子蒸氣。當(dāng)用鎂的空心陰極燈作光源，它便輻射出具有波長為285.2nm的鎂的特征光譜(波)，當(dāng)其通過火焰中一定厚度的鎂原子蒸氣時(shí)，部分光被蒸氣中基態(tài)鎂原子所吸收而使強(qiáng)度有所減弱。通過單色器分光后被檢測器接受，檢測器測得鎂的285.2nm譜線光的減弱程度，進(jìn)而即可求出試樣中鎂的含量。</p><p style="text-indent:25px">火焰中有兩種以上原子的吸收線與光源發(fā)射的剖析線相堆疊時(shí)產(chǎn)生臨近線干擾，這種干擾使結(jié)果偏高。當(dāng)剖析元素的吸收線和共存元素的吸收線完整堆疊，而剖析元素的含量比較低時(shí)，測得的只是共存元素的吸收信號。當(dāng)剖析元素的剖析線中心位置和共存元素的吸收線的中心位置稍有偏離，但仍有相當(dāng)水平的堆疊，此時(shí)得于的吸收信號仍有比較大一局部是共存元素產(chǎn)生的。當(dāng)共存元素的吸收線和剖析元素的吸收線稍有堆疊時(shí)，吸收信號中仍有小局部是共存元素產(chǎn)生的。只要剖析元素的吸收線和共存元素的吸收線完整別離時(shí)，共存元素才不產(chǎn)生干擾。Co253.649對Hg253.652r的干擾是典型的吸收線堆疊干擾。原子吸收分光光度計(jì)可普遍應(yīng)用于食品、醫(yī)藥、環(huán)境、生物、農(nóng)業(yè)、石油化工、建筑、材料、地質(zhì)、科研等領(lǐng)域。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="便攜原子吸收分光光度計(jì)報(bào)價(jià),原子吸收分光光度計(jì)" src="https://tyunfile.71360.com/WaterMark/UploadFile/ydfx123/637419991291551872/1267970.png"></div><p style="text-indent:25px">原子吸收分光光度計(jì)根據(jù)物質(zhì)基態(tài)原子蒸汽對特征輻射吸收的作用來進(jìn)行金屬元素分析，它能夠靈敏可靠的測定微量或痕量元素。原子吸收分光光度計(jì)一般由光源（單色銳線輻射源）、試樣原子化器、單色儀和數(shù)據(jù)處理系統(tǒng)四大部分組成。原子吸收分光光度法應(yīng)用也有一定的局限性，即每種待測元素都要有一個(gè)能發(fā)射特定波長譜線的光源。原子吸收分析中，首先要使待測元素呈原子狀態(tài)，而原子化往往是將溶液噴霧到火焰中去實(shí)現(xiàn)，這就存在理化方面的干擾，使對難溶元素的測定靈敏度還不夠理想，因此實(shí)際效果理想的元素只30余個(gè)；由于儀器使用中，需用乙炔、氫氣、氬氣、氧化亞氮（俗稱笑氣）等，操作中必須注意安全。原子吸收分光光度計(jì)測定每種元素均需要相應(yīng)的空心陰極燈，這對檢測工作帶來不便。暗箱原子吸收分光光度計(jì)排行</p><p style="text-indent:25px">原子吸收光譜分析，由于其靈敏度高、干擾少、分析方法簡單快速。便攜原子吸收分光光度計(jì)報(bào)價(jià)</p><p style="text-indent:25px">隨著現(xiàn)在科學(xué)技術(shù)的發(fā)展，儀器儀表行業(yè)發(fā)生了突飛猛進(jìn)的發(fā)展，再加上當(dāng)前計(jì)算機(jī)技術(shù)、網(wǎng)絡(luò)技術(shù)的進(jìn)步和發(fā)展，組建網(wǎng)絡(luò)而構(gòu)成實(shí)用的監(jiān)控系統(tǒng)，可以提高生產(chǎn)效率和共享信息資源方向發(fā)展。當(dāng)前儀器儀表行業(yè)產(chǎn)品發(fā)展呈現(xiàn)微型化、多功能化、智能化、網(wǎng)絡(luò)化四大發(fā)展趨勢。在計(jì)算機(jī)和互聯(lián)網(wǎng)的急速發(fā)展到整個(gè)世界的背景下，儀器儀表也開始向網(wǎng)絡(luò)化突進(jìn)，結(jié)合新的科技設(shè)備，通過廣域網(wǎng)和局域網(wǎng)直接操控儀器儀表，對公司的管理，經(jīng)營一體化，應(yīng)用模式的分析等各大方面產(chǎn)生影響。有限責(zé)任公司企業(yè)通過網(wǎng)絡(luò)這個(gè)平臺與客戶直接的交流，突破了世界和空間的限制，行家遠(yuǎn)程操控對儀器儀表進(jìn)行維護(hù)和分析。高科技的產(chǎn)品也隨之而來。隨著手機(jī)移動(dòng)網(wǎng)絡(luò)的消費(fèi)潛力不斷隱現(xiàn)，消費(fèi)者利用手機(jī)消費(fèi)的頻率和份額逐年遞增。移動(dòng)互聯(lián)網(wǎng)所隱藏的商業(yè)價(jià)值被更多地挖掘出來之后，各種傳統(tǒng)行業(yè)（包括分光光度計(jì)，氣相色譜，原子吸收，食品安全行業(yè)）的移動(dòng)網(wǎng)上平臺相繼誕生。隨著中國的不斷進(jìn)步，世界上只有一個(gè)救世主——市場，能救企業(yè)的只有你自己——自強(qiáng)，提高生產(chǎn)型重點(diǎn)競爭力才是中國制造業(yè)的獨(dú)一出路。以顯微科學(xué)儀器行業(yè)的發(fā)展與變化為例，以親身的實(shí)踐為例，毛磊認(rèn)為，隨著經(jīng)濟(jì)的不斷發(fā)展，我國的環(huán)境和實(shí)力都發(fā)生了巨大變化，有了完全不同的基礎(chǔ)，這為國產(chǎn)科學(xué)儀器走向**增強(qiáng)了信心。便攜原子吸收分光光度計(jì)報(bào)價(jià)</p></p><br 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