Kinetic Spectrophotometric Determination of Gemifloxacin Mesylate and Moxifloxacin Hydrochloride in Pharmaceutical Preparations Using 4-Chloro-7-nitrobenzo-2-oxa-1,3-diazole

Table 6

Regression equations for GMF and MOX at fixed time and 70±5°C.

Time (min)	Regression equation^a; for GMF	Correlation coefficient	Regression equation^a; for MOX	Correlation coefficient
2.5	𝐴=0.0279𝐶+0.0419	0.980	𝐴=0.0552𝐶−0.053	0.9967
5	𝐴=0.0723𝐶+0.0456	0.9956	𝐴=0.0662𝐶−0.0309	0.9989
10	𝐴=0.0707𝐶+0.0552	0.9990	𝐴=0.0775𝐶−0.0236	0.9992
15	𝐴=0.0911𝐶+0.0368	0.9993	𝐴=0.0802𝐶−0.0039	0.9998
20	𝐴=0.0972𝐶+0.0068	0.9999	𝐴=0.0814𝐶−0.0083	0.9994
25	𝐴=0.0958𝐶+0.0329	0.9986	𝐴=0.0815𝐶−0.0109	0.9983
30	𝐴=0.0979𝐶+0.0318	0.9990

^a𝐴: absorbance; 𝐶: concentration.