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<div>微生物氣溶膠是指空氣中的微生物及其副產(chǎn)物形成的膠體體系，包括有細菌、真菌、病毒、孢子、內毒素、真菌毒素等。微生物氣溶膠作為大氣環(huán)境氣溶膠體系中的一類，長期懸浮于空氣中，其體系中所含的微生物種類和數(shù)目變化多樣，且容易受到大氣環(huán)境中各個因素的影響，使得對空氣微生物的分析難以定性和定量化，因此，對微生物氣溶膠的定性和定量分析成為了空氣微生物學研究的重點內容。</div><div> </div><div><strong>微生物氣溶膠采樣器</strong>適用于實驗室中空氣微生物的濃度測定，微生物氣溶膠動物感染的劑量，微生物氣溶膠存活的回收率，人體氣霧免疫的劑量，空氣消毒劑和消毒器的滅菌效果，超凈臺的性能檢測等實驗中的氣溶膠采樣。</div><div> </div><div>液體沖擊式<strong>微生物氣溶膠采樣器</strong>的優(yōu)缺點：</div><div> </div><div>優(yōu)點：</div><div>(1)效率高，適于低濃度的空氣微生物采樣，且對病毒等超微氣溶膠顆?？刹杉?。</div><div>(2)能將采集的樣品分別分析。</div><div>(3)采樣時因氣流沖擊和采樣液攪動，可將粒子中的微生物釋放并均勻分布于采樣液，從而能測出空氣中活微生物數(shù)量，而固體撞擊采樣器只能反映空氣中含活菌粒子數(shù)。</div><div>(4)采樣液有保護作用，對脆弱的微生物(如病毒、立克次氏體)也能采樣。</div><div>(5)使用方便、價格低廉、可反復使用。</div><div> </div><div>缺點：</div><div>(1)采樣液易揮發(fā)，不適宜低溫長時間采樣。</div><div>(2)無法判斷其采氣量和有效采氣量。</div><div>(3)有效采氣量不恒定。</div><div>(4)由于一部分細菌粒子會損耗于空氣通道側壁上，而導致結果誤差。</div> </div> </div> <div id="tudxv4klklrj" class="prev_next"> <ul> <li><p>上一篇：<a href="/Article-2823322.html">GR-3021B型多功能煙氣濕度檢測儀功能特點</a></p></li> 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