Dynamic Light Scattering (DLS) - Data Interpretation

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00:00:00 Dynamic Light Scattering (DLS)
00:01:33 Outline
00:02:08 Optics
00:02:56 Scattering Volume
00:03:17 Static Intensity
00:03:45 Dynamic Intensity
00:04:20 Non-Random Dynamic Intensity
00:04:53 Physical Constraints
00:06:07 Correlation Statistics
00:07:11 Correlation Curves
00:08:40 Hydrodynamic Size
00:10:25 Typical Analysis Algorithms
00:17:02 Ideal Samples
00:18:24 Typical Samples
00:20:40 So What’s The Best Answer?
00:21:48 Data Interpretation Tips - I
00:28:57 Data Interpretation Tips - II
00:31:57 Data Interpretation Tips - III
00:38:54 Data Interpretation Tips - IV
00:40:42 Working Examples
00:40:52 Number Fluctuations
00:45:12 Random Noise - Fast Delay Times
00:54:31 Run Time Effects
00:57:32 Random Baseline Noise
01:00:29 Determinant Noise
01:03:33 Random Noise - Fast Delay Times
01:04:36 Random Baseline Noise
01:04:50 Molecular Weight Effects
01:10:34 Cumulants vs. CONTIN
01:12:55 CONTIN vs. NNLS
01:20:24 Problems With Volume Distributions
01:23:59 Measurement Tips
01:26:35 Customer Training
01:28:55 Why Malvern Instruments?
01:30:14 Contact Information
The Zetasizer Nano uses the ISO recommended Cumulants approach to measure the mean sample size and polydispersity index from dynamic light scattering measurements to ensure compliance with international standards