Determination of Trace Antimony (III) in Water Samples with Single Drop Microextraction Using BPHA-[C₄mim][PF₆] System Followed by Graphite Furnace Atomic Absorption Spectrometry

Table 4

Determination of Sb (III) in water samples.

Samples	Added (μg·L^−1)	Found (μg·L^−1)	Recovery (%)
Bottle mineral water	0	< Limits of detection	-
	0.1	0.102 ± 0.01	102±1
	0.4	0.401 ± 0.008	100±2
River water	0	< Limits of detection	-
	0.1	0.104 ± 0.015	104±2
	0.4	0.407 ± 0.012	102±3
Tap water	0	< Limits of detection	-
	0.1	0.098 ± 0.011	98±1
	0.4	0.398 ± 0.009	99±2