%0 Journal Article %T Determination of Total Thallium in Water and Spinach Samples by Ligand Less Microextraction Using Ion Pair Based Dispersive Liquid Liquid Microextraction Followed by Electrothermal Atomic Absorption Spectrometry %A Javedani Asleh, Farzaneh %A Eftekhari, Mohammad %A CHamsaz, Mahmod %J Spectroscopy Letters %@ 0038-7010 %D 2016