What is the difference between the contents of drugs when it is calculated on the anhydrous basis and on the dried basis?

Capsicum contains not less than 0.10% of total capsaicins (capsaicin and dihydrocapsaicin), calculated on the basis of dried material.

Methods The essential oil was extracted by steam distillation from sunning-fixed sample and sulfur-smoke-dried sample, and their components were analyzed by GC-MS.