Micellanized spectrophotometric method for the determination of beryllium using haematoxylin

Dayananda, B. P.; Revanasiddappa, H. D.; Kumar, T. N. Kiran

doi:10.1016/j.saa.2006.10.020

Cited by 5 publications

(3 citation statements)

References 28 publications

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“…The proposed extraction method has significant reproducibility and reliability by analysis GFAAS and UV-vis spectrometric methods. A high preconcentration factor and low LODs achieved in this work are comparable with literature reported works [4,21,[41][42][43][44][45][46][47][48][49] in Table 6. …”

Section: Discussionsupporting

confidence: 90%

A multivariate study of solid phase extraction of beryllium(II) using human hair as adsorbent prior to its spectrophotometric detection

Khan

Kazi

Tüzen

et al. 2014

Desalination and Water Treatment

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A new solid phase extraction method using hair as a adsorbent has been developed for beryllium(II) prior to its spectrophotometric determination using chrome Azurol S. The effects of various variables such as pH, sample and eluent flow rates, eluent volume and concentration, sample volume, and interfering ions on the quantitative recoveries of beryllium(II) were investigated. The multivariate strategy was applied to screen out the multifactor and estimate the optimum values of experimental factors for the recovery of beryllium(II) using solid phase extraction. Calibration graph was linear in the range of 0.046-20 μg L −1 with correlation coefficient (r 2 = 0.987). The sensitivity (limit of detection (LOD)) and selectivity (preconcentration factor) of the proposed methods were 0.028 and 50, respectively. Validity and accuracy of the developed solid phase extraction method were checked by analysis of a certified reference water for Trace Elements (TM-28.3) and a real water samples by standard addition method, the relative recoveries >96% were obtained. The method was successfully applied for the determination of beryllium(II) in natural water samples.

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Section: Discussionsupporting

confidence: 90%

A multivariate study of solid phase extraction of beryllium(II) using human hair as adsorbent prior to its spectrophotometric detection

Khan

Kazi

Tüzen

et al. 2014

Desalination and Water Treatment

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“…Surfactants, on dissolution in water, form organized molecular assemblies called micelles. The structure of the micelle is such that the polar head groups are in contact with the bulk aqueous solution, while the hydrophobic chains are directed inside the micelles performing a nonpolar core, that enhances the solubility of organic compounds in water (33) .This phenomenon of miceller solubilization has been used in the development and modification of different methods of analysis (33) . Since a surfactant should be used as a solubilizing agent, various surfactants were tried to overcome the precipitation of Zr (IV)-CAA complex.…”

Section: Effect Of Surfactant System and Surfactant Concentrationmentioning

confidence: 99%

Simple and Selective Determination of Zr (IV) with 1,4-dichloro-2, 5-dihydroxyquinone in a Micellar Solution of Cetylpyridenium Chloride by Zero and Second-Derivative Spectrophotometry

Elsayed¹,

Awwad²,

Hamed³

et al. 2016

Eurasian J Anal Chem

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A rapid, simple, selective, and sensitive method for trace determination of Zr (IV) has been developed based on the reaction of 1,4-dichloro-2,5-dihydroxyquinone in a hydrochloric acid medium to form a colored complex which is rendered water soluble by the micellar action of cetylpyridinium chloride (CPC) and measured at λmax 331 nm. Beer's law is obeyed in the concentration range 0-5 µg.ml -1 . The molar absorptivity of the complex, є was found to be 1.6 ×10 4 L.mol -1 cm -1 and Sandell's sensitivity was found to be 5.7 ng.cm -2 . A method for determination of Zr (IV) by second derivative spectrophtometry has also been proposed. The detection limit of Zr (IV) in the derivative method is 6 times lower than that of the zero order method, which shows the higher sensitivity of the derivative method. The method has been applied for determination of Zr (IV) in various samples, and satisfactory results have been obtained.

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“…Beryllium has been determined in various samples using arsenazo III, alminon and erichrome cyanine R (Shekho, 2002). Other methods using different chromogenic reagent like titan yellow (Hong-Wen and Peng-Fei, 1994), haematoxylin (Dayananda et al, 2007), 1,8-dihydroxyanthrone (Beiraghi and Babaee, 2007). and xylenol orang in presence of cetyltrimethyl -ammoniumbromide (Madrakian et al, 2005) have been reported.…”

Section: Introductionmentioning

confidence: 99%

Spectrophotometric Determination of Beryllium with Chrome Azurol S -Application to Waters

Al-Hadi¹

2012

RJS

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A simple, rapid and direct spectrophotometric method for the determination of beryllium II is described. The method is based on the reaction beryllium II with chrome azurol S in the presence of cetylpyridinium chloride at pH 5.0 forming a stable blue coloured complex which has an intense absorption at 620 nm. Beer's law was obeyed over the range of 0.25-100 µg/25 ml. The molar absorptivity and Sandal's sensitivity of the coloured complex are 1.02×10 4 l.mol-1 .cm-1 and 0.00883 µg.cm-2 , respectively. The interference caused by a number of common cations and anions can be removed by using EDTA as a masking agent. The method has been applied successfully to the determination of beryllium II in different water samples.

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Micellanized spectrophotometric method for the determination of beryllium using haematoxylin

Cited by 5 publications

References 28 publications

A multivariate study of solid phase extraction of beryllium(II) using human hair as adsorbent prior to its spectrophotometric detection

A multivariate study of solid phase extraction of beryllium(II) using human hair as adsorbent prior to its spectrophotometric detection

Simple and Selective Determination of Zr (IV) with 1,4-dichloro-2, 5-dihydroxyquinone in a Micellar Solution of Cetylpyridenium Chloride by Zero and Second-Derivative Spectrophotometry

Spectrophotometric Determination of Beryllium with Chrome Azurol S -Application to Waters

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