“…The effect of Brownian diffusion on DMA measurements has been studied by a number of authors using different approaches (Alonso & Kousaka, 1996;Hagwood, Sivathanu, & Mulholland, 1999;Kousaka, Okuyama,Adachi, & Mimura, 1986;Rosell-Llompart, Loscertales, Bingham, & Fernández de la Mora, 1996;Salm, 2000;Seol et al, 2000;Seto et al, 1997, Song, Chang, Kim, & Okuyama, 2005Stolzenburg, 1988;Zhang & Flagan, 1996). Of these, the semi-analytical expression for the DMA diffusional transfer function derived by Stolzenburg (1988) based on the assumption that particle positions have a Gaussian distribution about the non-diffusing particle trajectory is most widely used.…”