• Aug 26, 2025 structure analysis by small angle x ray and neutr low q. Principle: For small q, the scattering intensity follows the Guinier approximation: I(q) ≈ I(0) exp(- (q² Rg²)/3) Application: Estimate particle size and check for aggregation. Kratky Plot Purpose: To assess the degree of folding or comp By Mr. Dario Harvey