Table 1.

Chromatographic and spectral properties of metabolites resulted from pendimethalin degradation by Bacillus lehensis XJU

Property	Isolated metabolite 1	Authentic 6-aminopendimethalin	Isolated metabolite 2	Authentic 3,4-dimethyl 2,6-dinitroaniline
TLC: R f values in different solvent systems
A: Hexane–ethyl acetate (1:1, v/v)	0.87	0.87	0.73	0.74
B: Toluene-dioxan-acetic acid (90:20:4, v/v)	0.93	0.94	0.83	0.83
UV absorption λ max (nm)	229.43	229.43	234.42	234.42
HPLC retention time (min)	7.63	7.63	1.39	1.40
MS M+ at m/z	236, 220, 191	236, 220, 191	181, 121, 55	181, 121, 55