Indirect determination of iodide, as an Hg_xI_ycomplex, by electrothermal atomic absorption spectrometry

Optimization of a Liquid–Liquid Extraction Procedure of Butyltin Compounds and Total Tin in Marine Water Samples Using Flame Atomic Absorption Spectrometry

“…Due to the low sensitivity of flame AAS, the tin determinations in real marine water samples were performed by electrothermal atomic absorption spectrometry, using zirconium-coated graphite tubes with L'vov platforms. The use of this kind of tube and modifier was studied in previous work (14,18) for the determination of tin in aqueous solutions. Graphite tubes with a L'vov platform were found to give the best results, and coating the tubes with zirconium avoided the use of a chemical modifier, which would be dissolved in an organic solvent and thus make the procedure more complicated, because the chemical modifiers usually utilized in ETAAS are in aqueous solutions.…”

“…The atomization program used (shown in Table 1) is based on that optimized for tin determination in aqueous solutions (18) and is slightly modified for use with IBMK solutions.…”

“…Coating the tubes with elements that form refractory carbides, such as W, Ta, and Zr, avoids this problem (15)(16)(17)(18).…”

Development of a robust technique for sampling volatile metal(loid)s in wetlands

“…5 a pH dependency of arsane generation from As(III), As(V), MMAA and DMAA (modified from [21]). b pH dependency of arsane generation from DMAA (data from [21,22,26] and own experiments) Table 1 AAS conditions for analysing the original standard solution before the experiment (samples C control), the solution in the reaction vessel (samples R rest) and the oxidising solution (samples O oxidation)…”

Large Aliquot Injection Approach in the Electrothermal AAS Determination of Arsenic in Environmental Water Samples

“…Bermejo-Barrera et al 16 In this work it is reported that the W-coated PG furnace allowed the development of a valid and feasible analytical method for the direct determination of low levels of As in water samples, such as snow, cloud, river and tap waters, by using a 100 µl injection with a Pd modifier.…”