Particle Size Distribution by Capillary Hydrodynamic Fractionation: A New Approach Based on Multi-Wavelength UV Detection

CLEMENTI, L.A.; AGUIRRE, M.; LEIZA, J.R.; GUGLIOTTA, L.M.; VEGA, J.R.

Cancún

Congreso; XV Simposio Latinoamericano de Polimeros - XIII Congreso Iberoamericano de Polímeros (SLAP 2016); 2016

A new approach is here proposed for estimating the PSD of a latex by CHDF with UV detection collected at several wavelengths. The new method is evaluated on the basis of three polystyrene (PS) latexes that exhibit PSDs with different sizes and shapes. The proposed method is quite simple and proved to accurately estimate both unimodal and bimodal PSDs. Some advantages of the method are: i) no calibration is required; ii) the instrumental broadening is automatically corrected for; and iii) the injection of the marker solution is not necessary. However, a simultaneous multi-wavelength UV detection is required.