Research Article
Determination of Trace Antimony (III) in Water Samples with Single Drop Microextraction Using BPHA-[C4mim][PF6] System Followed by Graphite Furnace Atomic Absorption Spectrometry
Figure 3
(a) The atomic absorbance of Sb (III) in solutions with the concentration of BPHA from 6×10−5 M to 10×10−5 M. (b) The atomic absorbance of Sb (III) in solutions with the drop size from 2.0 to 6.0 μL. (c) The atomic absorbance of Sb (III) in solutions with the stirring rate from 200 to 800 rpm. (d) The atomic absorbance of Sb (III) in solutions with the extraction time from 2 to 10 min.
(a) |
(b) |
(c) |
(d) |