Table 2.

Analytical parameters for the determination of PFLX.

	Linear range (×10−7 M)	Linear regression equation (c × 10−7 M)a	r b	LODc (3σ, ×10−10 M)
PFLX	0.008~10.0	ΔI = 7229.5c − 9.2828	0.9991	2.5
	10.0~80.0	ΔI = 4653c + 419.95	0.9973

^aΔI is the enhanced intensity of SOS and fluorescence.

^bCorrelation coefficient.

^cDetection limit.