[Utilization of automatic systems for determining the biological activity of antibiotics by the agar diffusion...

The Automatic Zone Analyzer AR-140 of Millipor intertech., inc. is an apparatus used for measurement of inhibition growth zones of test-microbes and estimation of antibiotic activity. The analyzer provides automatic registration of the data with high levels of accuracy and at least 99% reproducibility. The analyzer gives an effect in saving time as compared to the manual method by 5-7 times for the single-dose procedure and by 10-12 times for the three-dose procedure.