Determination of trace vanadium in soil by cloud point extraction and graphite furnace atomic absorption spectroscopy

Determination of vanadium (V) employing a new combined single drop micro-extraction and diffuse reflectance Fourier transform infrared spectroscopy technique

“…The solid-phase extractionelectrothermal atomic absorption spectrometry (SPE-ETAAS) [6] technique needs costly consumables and matrix interference is also a major concern. Graphite furnace atomic absorption spectrometry (GF-AAS) [9] and flow injection analysis [45] methods also require elimination of foreign ions and requirement of large sample volume limits the applicability of these methods. The ICP-MS techniques [49,50] though are sensitive but involve large technical complexity and also involve removal of interferences of polyatomic ions viz.…”

“…Many separation/preconcentration and determination techniques for the determination of vanadium in biological and water samples have been proposed, including solvent extraction [4,5], solid phase extraction (SPE) [6,7], high-performance liquid chromatography (HPLC) [8], cloud point extraction [9], electrothermal vaporization inductively coupled plasma optical emission spectrometry [10] and solid-liquid extraction column [11], hollow-fibre liquid phase micro-extraction [12]. The conventional solvent extraction and co-precipitation however, are laborious techniques and can carry a risk of contamination.…”

Synthesis and application of a nanoporous ion-imprinted polymer for the separation and preconcentration of trace amounts of vanadium from food samples before determination by electrothermal atomic absorption spectrometry

“…Thus, to achieve accurate and reliable results in determination of ultra trace amount of vanadium, a separation and preconcentration step before its quantification by ETAAS is essential . Various methods including LLE , pressure‐assisted ionic liquid dispersive microextraction , SPE , cloud point extraction , and hollow‐fiber LPME have been applied for the separation and preconcentration of vanadium from aqueous samples. SPE is one of the most widely used sample preparation methods because of its advantages of low consumption organic solvent, high recovery, possibility of obtaining high enrichment factor, relatively high speed, safety, and ease of automation .…”

Determination of trace vanadium(V) by adsorptive anodic stripping voltammetry on an acetylene black paste electrode in the presence of alizarin violet

“…These include spectrophotometry [2], spectrofluorimetry [3], neutron-activation analysis (NAA) [4], inductively coupled plasma mass spectrometry (ICP-MS) [5], inductively coupled plasma atomic emission spectrometry (ICP-AES) [6], inductively coupled plasma optical emission spectrometry (ICP-OES) [7], electrothermal atomic absorption spectrometry (ETAAS) [8] and graphite furnace atomic absorption spectroscopy (GFAAS) [9]. The spectrophotometric and spectrofluorimetric methods suffer from low sensitivity values, the NAA method was time-consuming, and routine analysis of numerous samples was laborious.…”