**Spectrophotometric Methods as Solutions to Pharmaceutical Analysis of β-Lactam Antibiotics**

Judyta Cielecka-Piontek1, Przemysław Zalewski1, Anna Krause2 and Marek Milewski2 *1Poznan University of Medical Sciences, Department of Pharmaceutical Chemistry*  <sup>2</sup>*PozLab Contract Research Organization at Centre of Transfer of Medical Technologies Poland* 
