Chromogenic analogues of penicillin dihydroF and penicillin K for the continuous spectrophotometric determination of aliphatic penicillin acylase activity

1. Arroyo, M.
2. Torres-Guzmán, R.
3. Torres-Bacete, J.
4. De la Mata, I.
5. Castillón, M.P.
6. Acebal, C.