Cloud Point Extraction Combined with Electrothermal Atomic Absorption Spectrometry

Nowadays, a considerable number of various separa-tion/preconcentration procedures coupled with electrother-mal atomic absorption spectrometry (ETAAS) can be found in the published literature. Among separation tech-niques, cloud point extraction (CPE) has found its regular use in ultratrace analysis of elements. This review offers a more detailed look to the coupling of CPE and ETAAS, especially to the parameters affecting ETAAS quantifica-tion of a selected element. Publications, where this combi-nation of separation technique and quantification method is used, describe an achievement of quantitative extraction recoveries, an acceptable precision and low limits of quan-tification (LOQs) for different (ultra)trace elements in various complex matrices. These results lead to the conclu-sion that the developed procedures have a great analytical potential for reliable quantification of (ultra)trace ele-ments, even when complicated matrices containing various components are to be analyzed, which is supported by papers mentioned in this review.