CAJ | 학술논문

为了研究动态光散射颗粒测量中测量区域大小对测量结果的影响,采用50nm,100nm,500nm 3种标准颗粒与过滤的蒸馏水制作不同体积分数的溶液作为测量颗粒样品进行了测试,得到不同测量区大小下颗粒粒径的测量数据,并通过计算测量平均值和重复性对数据进行了分析.结果表明,当体积分数较低时,测量区过小会导致测量值的方差过大;当体积分数较高时,测量区过大会导致测量平均值偏小.
위료연구동태광산사과립측량중측량구역대소대측량결과적영향,채용50nm,100nm,500nm 3충표준과립여과려적증류수제작불동체적분수적용액작위측량과립양품진행료측시,득도불동측량구대소하과립립경적측량수거,병통과계산측량평균치화중복성대수거진행료분석.결과표명,당체적분수교저시,측량구과소회도치측량치적방차과대;당체적분수교고시,측량구과대회도치측량평균치편소.
In order to study the effect of the measurement area on particle test precision in dynamic light scattering,the sample particles were measured under the condition that the solution with various concentration was made of filtered distilled water and standard particles 50nm,100nm,and 500nm in diameter.After testing the particle diameter in different measurement area,its mean value and repeatability were analyzed.A conclusion is drawn that a bigger variance will be induced by smaller measurement area in the low concentration solution.On the other hand,smaller mean diameter will be induced by large larger area in the high concentration solution.