## Guinier plot

https://doi.org/10.1351/goldbook.G02712
A diagrammatic representation of data on @S05487@ from large particles, obtained at different angles but at the same concentration, constructed by plotting $$\log _{10}\Delta R\left(\theta \right)$$ or $$\log _{10}P\left(\theta \right)$$ versus $$(\sin \frac{\theta }{2})^{2}$$ or $$q^{2}$$ and (usually) used for the evaluation of the @R05121@. $$\Delta R(\theta)$$ is the @E02236@, $$P\left(\theta \right)$$ the @P04429@, $$\theta$$ the @S05488@ and $$q$$ the length of the @S05494@.
Source:
Purple Book, 1st ed., p. 67 [Terms] [Book]