| 00:00:00 | Measuring Nanoparticles in Concentrated Suspensions |
| 00:01:54 | Measuring Nanoparticles in Concentrated Suspensions |
| 00:02:19 | Contents |
| 00:03:30 | Dynamic Light Scattering |
| 00:03:38 | Components of a Malvern Dynamic Light Scattering Instrument |
| 00:05:13 | Dynamic Light Scattering and Brownian Motion |
| 00:06:05 | Dynamic Light Scattering |
| 00:07:28 | Measuring Nanoparticles in Concentrated Suspensions |
| 00:07:35 | Sample Concentration Overview |
| 00:09:16 | Lower Concentration Limit |
| 00:11:17 | Upper Concentration Limit: Multiple Scattering (1) |
| 00:12:41 | Upper Concentration Limit: Multiple Scattering (2) |
| 00:13:16 | Non Invasive Back Scatter: NIBS |
| 00:15:40 | Upper Concentration Limit: Multiple Scattering (3) |
| 00:17:13 | Upper Concentration Limit: Restricted Diffusion (1) |
| 00:18:06 | Upper Concentration Limit: Restricted Diffusion (2) |
| 00:19:16 | Upper Concentration Limit: Restricted Diffusion (3) |
| 00:20:05 | Upper Concentration Limit: Aggregation Effects (1) |
| 00:20:32 | Upper Concentration Limit: Aggregation Effects (2) |
| 00:21:01 | Upper Concentration Limit: Aggregation Effects (3) |
| 00:22:10 | Upper Concentration Limit: Electrostatic Interactions (1) |
| 00:22:51 | Upper Concentration Limit: Electrostatic Interactions (2) |
| 00:23:52 | Upper Concentration Limit: Electrostatic Interactions (3) |
| 00:24:03 | Recommended Sample Concentrations |
| 00:28:01 | Application Examples |
| 00:28:09 | Pigment Dispersions |
| 00:29:17 | Pigment Dispersions |
| 00:31:26 | Pigment Dispersions (measured at 1.5% w/v) |
| 00:32:25 | Pigment Dispersions (measured at 1.5% w/v) |
| 00:32:39 | Pigment Dispersions (measured at 1.5% w/v) |
| 00:32:57 | Effect of Calcium on Emulsion Stability:20% w/v Emulsion |
| 00:34:23 | Effect of Calcium on Emulsion Stability:20% w/v Emulsion |
| 00:34:40 | Effect of Calcium on Emulsion Stability:20% w/v Emulsion |
| 00:35:02 | Conclusions |
| 00:36:24 | Contact information |
The Zetasizer Nano uses an optical technique call NIBS that enables the measurement of the size of concentrated samples, many not requiring dilution. However the analyst must be aware of the care required when interpreting the results