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490786521木蟲(chóng) (小有名氣)
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[求助]
納米粒度儀與TEM的測(cè)試結(jié)果出入
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| 我用納米粒度儀測(cè)出粒子是一微米左右 而且PDI很小 只有0。0幾 而用TEM照出可能只有100nm左右 請(qǐng)問(wèn)是怎么回事? |
木蟲(chóng) (職業(yè)作家)

木蟲(chóng) (著名寫手)
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The discrepancy between the DLS and electron microscopy diameters is partly due to polydispersity effects (since DLS is more biased toward larger particles than TEM and SEM)and also reflects the swollen dimensions of these microgels in aqueous solution (compared to the high-vacuum conditions required for electron microscopy). |
木蟲(chóng) (正式寫手)
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