Cloud point extraction of iron(III) and vanadium(V) using 8-quinolinol derivatives and Triton X-100 and determination of 10moldm level iron(III) in riverine water reference by a graphite furnace atomic absorption spectroscopy

Ohashi, Akiyoshi; Ito, Hiromi; Kanai, Chikako; Imura, Hisanori; Ohashi, Kousaburo

doi:10.1016/j.talanta.2004.07.018

Cited by 164 publications

(56 citation statements)

References 15 publications

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“…The preconcentration factor obtained was of 83 fold resulted in achieving the limit of detection (LOD) of 3.42 ngmL -1 ( Table 2). Concerning LOD, our findings was 5 fold more better than obtained by Giokas et al, 31 who used CPE-FI-AAS , but about 2 fold less than those obtained by Ohashi et al, 32 and Shakerian et al, 33 whom used CPE-GFAAS and CPE-FI-AAS. The molar absorptivities, Sandell's sensitivities, extraction efficiencies for NOR and Fe(III) were also given in Tables 1 and 2, indicative the proposed method has a good sensitivity and extractability.…”

Section: Calibration Graphs For Nor Drug and Iron(iii) Ionscontrasting

confidence: 65%

Cloud Point Extraction Spectrophotometric Method for Mutual Determination of Norfloxacin and Iron(III) in Human Serum and Drug Formulations

Khammas¹,

Mubdir²

2015

Chem Sci Trans

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An eco-friendly procedure was developed for dual detection of drug norfloxacin (NOR) and iron(III) ions in biological and pharmaceutical samples via the coupling of cloud-point extraction procedure with molecular spectrophotometry. The drug norfloxacin reacts with Fe(III) ions in dilute acidic medium to form a colored hydrophobic (Fe(III)-NOR) complex which initially extracted into micelles of Triton x-114 as a mediated extractant followed the determination of both NOR and Fe(III) ions individually, by using spectrophotometry at same wavelength maximum of 432 nm. To achieve this goal, all experimental variables for both target analytes were previously optimized. The results have shown that the preconcentration factors of 83 and 71 for NOR and Fe(II) leading to achieve a limit of detection of 0.692 μg mL -1 3.42 ng mL -1 with linear range of 2.5-125 μgmL -1 (r= 0.9998) and 5-150 ng mL -1 (r=0.9997) respectively. The mean recovery percentage of 98.95±1.09% and 98.77±2.29%; the precision (RSD%) ranged between 0.04-0.66% and 0.59-0.97% were obtained for NOR and Fe(III) respectively. The proposed method was used for the determination of NOR in the serum samples of different subjects orally administration for two hours with Norfloxacin tablets BP 400 mg, in addition to drug formulations like Norflox Eye/Ear drops, While iron was determined in four selected drug formulations and in both cases, the experimental values are agreed with the quoted values that stated by the manufacturer company,

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Section: Calibration Graphs For Nor Drug and Iron(iii) Ionscontrasting

confidence: 65%

Cloud Point Extraction Spectrophotometric Method for Mutual Determination of Norfloxacin and Iron(III) in Human Serum and Drug Formulations

Khammas¹,

Mubdir²

2015

Chem Sci Trans

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“…Cu (Kulichenko et al, 2003), Mn ( Doroschuk et al, 2004), Co (Nascentes & Arruda, 2003), Cd and Ni (Manzoori & Karim-Nezhad, 2004), Ag and Au (Mesguita da Silva et al, 1998) were determined by FAAS. CPE was also applied for extraction of Fe(III) (Ohashi et al, 2005) and As(III) and As(V) (Shemirani et al, 2005) before determination by ET-AAS. Cd, Cu, Pb, and Zn (Chen & Teo, 2001) were simultaneous extracted as complex with 1-(2-thiazolylazo)-2-naphthol (TAN) using TritonX-114 prior to determination by FAAS.…”

Section: Applications Of Cpe In Atomic Absorption Spectrometrymentioning

confidence: 99%

Microextraction Techniques as a Sample Preparation Step for Metal Analysis

Biparva¹,

Matin²

2012

Atomic Absorption Spectroscopy

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“…In CPE with a simple single-step extraction procedure analysis of many samples enable researchers to perform the overall procedure easily on-line [14][15][16][17][18][19][20][21][22][23][24][25][26][27].…”

Section: Introductionmentioning

confidence: 99%

Combination of cloud point extraction and flame atomic absorption spectrometry for preconcentration and determination of trace iron in environmental and biological samples

et al. 2008

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Abstract:In the presented work, the conditions for cloud point extraction of iron from aqueous solutions using 7-iodo-8-hydroxyquinolin-5-sulphonic acid (Ferron) was investigated and optimized. The procedure is based on the separation of its ferron complex into the micellar media by adding the surfactant Triton X-114. After phase separation, the surfactant-rich phase was dissolved with 1.0 M HNO 3 in methanol. Iron was determined by flame atomic absorption spectrometry. Optimization of the pH, ligand and surfactant quantities, incubation time, temperature, viscosity, sample volume, and interfering ions were investigated. The effects of the matrix ions were also examined. The detection limits for three times the standard deviations of the blank for iron was 0.4 ng m L -1, enrichment factor of 19.6 and preconcentration factor of 30 could be achieved. The validity of cloud point extraction was checked by employing real samples including soil, blood, spinach, milk, meat, liver and orange juice samples using the standard addition method, which gave satisfactory results. © Versita Warsaw and Springer-Verlag Berlin Heidelberg. Keywords: 7-iodo-8-hydroxyquinolin-5-sulphonic acid (Ferron) • Iron • Cloud point extraction • Triton X-114 •Flame atomic absorption spectrometry Research ArticleAbbreviation TAN and Phen -tannins and other phenolic compound, PMBP -1-phenyl-3-methyl-4-benzoyl-5-pyrazolone, GF-AAS -graphite furnace atomic absorption spectrometry, FAAS -flame atomic absorption spectrometry.

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Cloud point extraction of iron(III) and vanadium(V) using 8-quinolinol derivatives and Triton X-100 and determination of 10moldm level iron(III) in riverine water reference by a graphite furnace atomic absorption spectroscopy

Cited by 164 publications

References 15 publications

Cloud Point Extraction Spectrophotometric Method for Mutual Determination of Norfloxacin and Iron(III) in Human Serum and Drug Formulations

Cloud Point Extraction Spectrophotometric Method for Mutual Determination of Norfloxacin and Iron(III) in Human Serum and Drug Formulations

Microextraction Techniques as a Sample Preparation Step for Metal Analysis

Combination of cloud point extraction and flame atomic absorption spectrometry for preconcentration and determination of trace iron in environmental and biological samples

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