Table 1. The values of K_s and LOD.

Complex	K S (liter per mole)	LOD mole per liter, (ppm)
CBz-picric acid	4.4 × 104	7.1 × 10−6, 1.6
CBz- 1,4-dichloro-2-nitrobenzene	1.7 × 103	5.2 × 10−5, 10.0
CBz-2-nitroaniline	1.3 × 104	1.0 × 10−4, 14.4
CBz-4-nitroaniline	1.6 × 104	9.9 × 10−6, 1.3
CBz-4-nitrophenol	1.6 × 104	1.2 × 10−5, 1.6
M1-picrate	8.6 × 104	2.8 × 10−6, 0.6