Sensitive determination of thallium species in drinking and natural water by ionic liquid-assisted ion-pairing liquid-liquid microextraction and inductively coupled plasma mass spectrometry

► Speciation studies of Tl at ultratrace levels in water samples. ► Straightforward speciation analysis of Tl. ► Investigation of ionic liquid as ion pairing reagent. ► Microextraction approach with minimal waste production and sample consumption. ► Fast separation and determination of Tl species with high frequency of analysis.