WEBVTT

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Double-clicking the spectrum locates the nearby maximum and opens its attenuation.

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Check the marked position and extraction half-width.

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The same region is used throughout the ramp; the maximum is not chased in each spectrum.

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Here we use a project copy without changing the saved map.

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The D-only option fits monoexponential attenuation and reports measured diffusion, final diffusion and fit statistics.

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Check the internal reference and temperature normalization used.

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A high coefficient of determination does not demonstrate monodispersity.

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This fit alone does not produce a distribution or identify a compound.

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Switch to the linear view to inspect log normalized intensity against b.

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Review valid and excluded observations, the fit and residuals.

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Do not remove observations only to improve R squared.

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Any manual or automatic exclusion must retain a visible criterion and the observations no longer used.

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Calculate distribution inverts this region's attenuation using the selected method and grid.

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Review convergence, residuals, boundaries and moments before accepting it.

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Hydrodynamic radius requires documented viscosity and temperature; mass requires a compatible calibration.

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Adding a result is a separate action and is not performed in this video.