Non-chromatographic atomic spectrometric methods in speciation analysis: A review

Solidified floating organic drop microextraction for speciation of selenium and its distribution in selenium-rich tea leaves and tea infusion by electrothermal vapourisation inductively coupled plasma mass spectrometry

“…The separation techniques for speciation generally include chromatographic (Georg et al, 2012;Joanna, Henryk, Halina, & Ewelina, 2014;Matusiewicz & Ś lachciń ski, 2012;Moreira et al, 2011; and non-chromatographic methods (Chen, Guo, He, & Lu, 2013;Escudero, Martinis, Olsina, & Wuilloud, 2013;Güler, Maden, Bakırdere, Ataman, & Volkan, 2011;Soylak & Kizil, 2013;Wang, Song, Ma, Ma, & Liang, 2000). For a simple elemental speciation like different oxidation states, nonchromatographic procedure is often more diffused than chromatographic technique due to their more accessibility, easy availability, low cost and competitive detection limit (Vieira, Grinberg, Bobeda, Reyes, & Campos, 2009). Recently, solidified floating organic drop microextraction (SFODME), as a new liquid phase microextraction technique, has been used widely for the analysis of trace elements owing to its unique merits of simplicity, rapidity, low cost, consumption of small organic solvent and high enrichment factor (Durukan, S ßahin, & Bektas ß, 2011;Fazelirad & Taher, 2013;Liang, Yu, Yang, & Peng, 2014;Ma, Zhang, Du, Lei, & Li, 2010;Mahnaz, Yadollah, & Ali, 2013;Yi, Wu, & Jiang, 2013).…”

Speciation of Mn(II), Mn(VII) and total manganese in water and food samples by coprecipitation–atomic absorption spectrometry combination

“…The interferences from alkali and earth alkali elements on the flame atomic absorption spectrometric determinations of metal ions are an important problem [27][28][29][30][31][32]. The influences of the some ions, which are known as interferic ions in the flame atomic absorption spectrometric determination were investigated.…”

Potential of the hydride generation technique coupled to inductively coupled plasma optical emission spectrometry for non-chromatographic As speciation

“…Non-chromatographic approaches to differentiation of the four As species, being the direct benet of HG, are less time-consuming, simpler and more cost-effective alternatives to speciation of As carried out by HPLC. 13,24,25 Selectivity is based on (1) differences in the reaction rate of the As species with NaBH 4 in the HCl medium, (2) the aciditydependent reduction reaction between the As species and NaBH 4 , critically affected by the type and concentration of acid or buffer used as well as pH of the reacting medium and 3absence or presence of additives, including pre-reductants or chelating/masking reagents. Accordingly, the individual hydrides can be generated either selectively under different chemical conditions or together with other species in various reaction media.…”