Table 4.

Short-term stability data of ATR, MET, and GLM.

Conc. in µg/mL	MET		ATR		GLM
	Mean ± SD	%RSD	Mean ± SD	%RSD	Mean ± SD	%RSD
10	—		97.17 ± 1.101	1.133	102.95 ± 1.046	1.016
20	99.66 ± 0.337	0.338	100.15 ± 1.813	1.793	101.69 ± 0.644	0.634
50	100.5 ± 1.108	1.055	99.49 ± 0.313	0.314	100.79 ± 0.414	0.411
100	101.43 ± 0.199	0.197	99.56 ± 1.277	1.283	102.43 ± 1.079	1.054