Free Access

Table II.

Comparison of surface heterogeneity profile parameters of coarse lactose and micronized lactose before and after storage at 75% RH for three months.

Probes Lactose samples Surface heterogeneity profile parameters
Mode AUC Peak adsorption potential
Heptane Coarse lactose No change Decreased Minor right shift
Micronized lactose No change Decreased No shift
Dicholoromethane Coarse lactose No change Decreased No shift
Micronized lactose No change No change Right shift
Ethyl acetate Coarse lactose No change No change No shift
Micronized lactose No change No change Minor left shift