Turbidometric performance. Table 1 presents the results of OD measurements obtained from the Multiskan FC and a cuvette spectrophotometer. The OD of the 1:10 dilution of the culture was measured at 0.319 using the cuvette spectrophotometer, which was subsequently used to calculate a range of theoretical ODs.
The theoretical values were compared to the actual data obtained by the cuvette spectrophotometer and the microplate photometer. Since the pathlength in microplate wells is different from the 1 cm cuvette pathlength, the microplate values were corrected accordingly. The calculated difference between the theoretical and measured values shows that the data obtained using the microplate photometer correlates to the theoretical values across a wider range of the dilution series than that obtained using the cuvette spectrophotometer.