Determination of iron in hair samples by slotted quartz tube-flame atomic absorption spectrometry after switchable solvent liquid phase extraction

A comprehensive review on recent developments and future perspectives of switchable solvents and their applications in sample preparation techniques

“…Khan et al 136 carried out and found a maximum recovery of (Hg-dithizone) at pH 7.0 by using N , N -dimethyl-cyclohexylamine/protonated N , N -dimethyl-cyclohexylamine carbonate solvent pair as switchable solvent. The effect of pH on the extraction of the metal ions using N , N -dimethlybenzylamide as a extractive solvent was investigated by Atsever et al , 153 who found a maximum recovery in a slightly acidic environment (pH 4.0).…”

“…In the case of amine-based SSs, CO 2 has been mostly used as a switching-on trigger for phase transition from hydrophobic to hydrophilic, as shown in Table 1, while on the other side triggers for fatty acid-based SSs are sodium bicarbonate along with NaOH. [122][123][124]126,127,130,131,[152][153][154][155] 5.10.2. Selection of switching-off triggers (hydrophilic to hydrophobic).…”

“…Different extraction methods have been developed by using SSs for the determination of different metal ions (silver and cobalt, cadmium, vanadium, copper, uranium, cobalt, palladium, nickel, lead, iron, aluminum and lead) in the literature. 126,127,131,134,138,139,[152][153][154][155][156][157][158][159][160][161]153,168 The key importance of these methods is the application of easily synthesized and recycled green SSs without an effect on the efficacy of the proposed methods. 5.12.2 Application of SSs for Organic compounds.…”

Atomic spectrometry update: review of advances in the analysis of clinical and biological materials, foods and beverages

“…One approach is to use the slotted quartz tube, for which a resurgence in interest is noted. Atsever and colleagues 64 used this device to determined Fe in hair samples. The preparation involved switchable solvent liquid extraction and, with the slotted tube, the LOQ for the FAAS measurement was 8.6 μg L −1 , a sensitivity increase of 92-fold.…”

A Highly Fluorescent Pyrene-based Sensor for Selective Detection of Fe3+ Ion in Aqueous Medium: DFT and Molecular Docking Studies

“…Based on the chemical properties of iron different techniques have been used for its identi cation both qualitatively and quantitatively. Among these techniques, atomic absorption spectroscopy (AAS) is a precise method used for the determination of iron concentration in water [16]. Several restrictions are associated with AAS and other sophisticated instruments when compare with chemical sensors [17].…”