Extraction-spectrophtometric determination of vanadium using 2,6-dithiol-4-tert-butylphenol and aminophenols

Verdizade, N. A.; Магеррамов, А. М.; Kuliev, K. A.

doi:10.1134/s1061934811090188

Cited by 5 publications

(4 citation statements)

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“…A new simple, sensitive, and inexpensive method based on vanadium-Sal-BH complex was developed for the determination of vanadium in some environmental, biological, soil, food, and pharmaceutical samples. Compared with other methods [16][17][18][19][20]41,42] in the literature Table 1, the proposed method has several remarkable analytical characteristics:…”

Section: Determination Of Vanadium In Pharmaceutical Samplesmentioning

confidence: 99%

“…This paper reports its use in a very sensitive, highly specific spectrophotometric method for the trace determination of vanadium. The method possesses distinct advantages over existing methods [16][17][18][19][20] with respect to sensitivity, selectivity, range of determination, simplicity, speed, pH /acidity range, thermal stability, accuracy, precision and ease of operation (Table 1). The literature survey, it reveals that the existing methods are lengthy, time-consuming, pH dependent, and in most of the above-mentioned methods, the interference was high.…”

Section: Introductionmentioning

confidence: 99%

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A highly sensitive and selective spectrophotometric method for the determination of vanadium at nanotrace levels in some environmental, biological, soil, food, and pharmaceutical samples using salicylaldehyde-benzoylhydrazone

Abrarin

Ahmed

2020

Eur J Chem

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A very simple, non-extractive and new spectrophotometric method for the swift determination of trace amount of vanadium using salicylaldehyde-benzoylhydrazone (Sal-BH) has been developed. Sal-BH undergoes a reaction in a slightly acidic solution (0.0016-0.0032 M H2S04) with vanadium to give a light greenish-yellow chelate, which has an absorption maximum at 392 nm. The reaction is instantaneous and absorbance remains stable for over 24 hrs. The average molar absorption co-efficient and Sandell’s sensitivity were found to be 2.5039×105 L/mol.cm and 1.0 ng/cm2 V, respectively. Beer’s law was obeyed for 0.001-30 mg/L of V, providing a detection limit of 0.1 µg/L of V and RSD 0-2 %. The stoichiometric composition of the chelate is 1:1 (V:Sal-BH). Interference study shows that a large excess of over 60 cations, anions, and some common complexing agents (such as chloride, azide, tartrate, EDTA and SCN‑, etc.) satisfy the tolerance limit. The developed method was successfully used in the determination of vanadium in several standard reference materials as well as in some environmental waters, biological fluids, soil, food and pharmaceutical samples and solutions containing both vanadium (IV) and vanadium (V). The results of the proposed method for assessing biological, food and vegetable samples were comparable with ICP-OES and AAS were found to be in excellent agreement. The method has high precision and accuracy (s = ±0.01 for 0.5 mg/L).

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Section: Determination Of Vanadium In Pharmaceutical Samplesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A highly sensitive and selective spectrophotometric method for the determination of vanadium at nanotrace levels in some environmental, biological, soil, food, and pharmaceutical samples using salicylaldehyde-benzoylhydrazone

Abrarin

Ahmed

2020

Eur J Chem

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“…In the present paper was studied the complex formation in a liquid-liquid extraction system containing W(VI), ditiolphenols and hydrophobic amines (Am), and show the potential of this system for determination of W(VI) in real samples. Dithiphenolate complexes of metals are insoluble in chloroform, while mixed-ligand complexes with hydrophobic amines and aminophenols easily dissolve in various organic solvents [14,15,16].…”

Section: Introductionmentioning

confidence: 99%

Spectroscopic investigation complex formation of tungsten with 2, 6-dithiol-4-methylphenol in the presence of aminophenols

Kuliev¹,

Suleymanova²,

Novruzova³

et al. 2017

JOAASR

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The mixed-ligand complexes of tungsten (VI) with 2, 6-dithiol-4-methylphenol (DTMP) in the presence of hydrophobic amines have been investigated by spectrophotometric method. The condition of complexing and extraction, physical-chemical and analytical characteristics of this complex have been found. From aminophenols 2(N, N-dimethylaminomethyl)-4-methylphenol (АP1), 2(N,N-dimethylaminomethyl)-4-chlorphenol (АP2) and 2(N, N-dimethylaminomethyl)-4-bromphenol (АP3), were used.. It has been found that mixed-ligand complex were formed in weakly acidic medium (pH 3.9 – 5.2). Maksimum of light absorption observed at 476-480 nm. The calculated molar absorptivities (emax) belong to the interval (2.73-2.92)×104. The extraction-photometric methods of tungsten determination have been worked out. The influence of diverse ions on determination of tungsten has been studied. The proposed methods have been successfully applied to determination of tungsten in steel, soil and plant samples.

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“…Dithiolphenolate complexes of metalls are insoluble in chloroform, while mixed-ligand complexes with hydrophobic amines and amino phenols easily dissolve in various organic solvents [36][37][38][39][40] . In the present communication, simple, rapid, selective and sensitive spectrophotometric method is reported for the micro determination of Mo (VI) complexing with 2,6-dithiol-4-methylpenol (DTMP) and 2,6-bis(N, N-dimethylaminomethyl)-4-methylphenol (AP).…”

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confidence: 99%

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2017

IJPSR

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Extraction-spectrophtometric determination of vanadium using 2,6-dithiol-4-tert-butylphenol and aminophenols

Cited by 5 publications

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A highly sensitive and selective spectrophotometric method for the determination of vanadium at nanotrace levels in some environmental, biological, soil, food, and pharmaceutical samples using salicylaldehyde-benzoylhydrazone

A highly sensitive and selective spectrophotometric method for the determination of vanadium at nanotrace levels in some environmental, biological, soil, food, and pharmaceutical samples using salicylaldehyde-benzoylhydrazone

Spectroscopic investigation complex formation of tungsten with 2, 6-dithiol-4-methylphenol in the presence of aminophenols

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