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<strong>技術(shù)文章 </strong>/ article </span> <span id="xhv7ppp" class="right"><img src="/skins/385535/images/home.png">您的位置：<a href="/">網(wǎng)站首頁(yè)</a> > <a href="/article.html">技術(shù)文章</a> > 紫外臭氧分析儀主要組成部件作用介紹</span> </div> <div id="jvnrjzx" class="right_content"> <div id="7trx7dr" class="art-cont"> <h1 class="art-title">紫外臭氧分析儀主要組成部件作用介紹</h1> <div id="zjfjt7n" class="art-info"> 發(fā)布時(shí)間： 2022-01-05　　點(diǎn)擊次數： 1137次 </div> <div id="pbfxdd7" class="art-body"> <span style="font-size: 14px;">　　</span><span style="font-size: 14px;"><a href="http://www.5757576.com/Products-36526903.html" target="_blank">紫外臭氧分析儀</a>采用的原理：當空氣樣品以恒定的流速進(jìn)入儀器的氣路系統，樣品空氣交替地或直接進(jìn)入吸收池或經(jīng)過(guò)臭氧滌除器再進(jìn)入吸收池，臭氧對254nm波長(cháng)的紫外光有特征吸收。零空氣樣品通過(guò)吸收池時(shí)被光度檢測器測定的光強度為I0；含臭氧的空氣樣品通過(guò)吸收池時(shí)，被光度檢測器測定的光強度為I。每經(jīng)過(guò)一個(gè)循環(huán)周期，儀器的數據處理系統根據朗伯-比爾定律求出臭氧的濃度。 </span><div><span style="font-size: 14px;">　　紫外臭氧分析儀主要組成部件作用介紹：</span></div><div><span style="font-size: 14px;">　　1、紫外吸收池：紫外吸收池應以不與臭氧起化學(xué)反應的惰性材料制成，并具有良好的機械穩定性。吸收池的臭氧損失不能大于5%。</span></div><div><span style="font-size: 14px;">　　2、紫外燈：所產(chǎn)生的紫外光被檢測器接受的254nm的輻射至少占99。5%。</span></div><div><span style="font-size: 14px;">　　3、光度檢測器：光度檢測器能滿(mǎn)足在254nm波長(cháng)下測量的靈敏度要求。</span></div><div><span style="font-size: 14px;">　　4、臭氧滌除器：空氣樣品經(jīng)過(guò)臭氧滌除器除支臭氧和干擾氣體以后，進(jìn)入吸收池，并由光度檢測器測出I0。臭氧滌除器的平均壽命由生產(chǎn)廠(chǎng)家給出。然而實(shí)際壽命由采樣環(huán)境而定。當臭氧滌除器對環(huán)境中的臭氧反應明顯降低（線(xiàn)性檢驗精度>1%）時(shí)，則應更換臭氧滌除器。</span></div><div><span style="font-size: 14px;">　　5、采樣泵：采樣泵安裝在氣路的末端，抽吸空氣流過(guò)臭氧分析儀，并能在儀器所需的流量和壓力條件下運轉。</span></div><div><span style="font-size: 14px;">　　6、流量控制器：控制流過(guò)臭氧分析儀的空氣流量恒定在選定流量值的誤差±2%范圍以?xún)取?br /><br /><br type="_moz" /></span></div><p style="text-align: center;"><img src="https://img79.chem17.com/2/20211119/637729343600642200173.png" alt="紫外臭氧分析儀" width="500" height="500" align="middle" /></p><p> </p> </div> <div id="j7f7vvl" class="art-next"> <dl class="shangxia"> <dd>上一篇：<a 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