Determination of Trace Copper in Vanadium Alloy by Flame Atomic Absorption Spectrometry

Yang, Qiang; Tang, Guang Ping; Tian, Lun Fu; Wei, Qi Long; Wang, Chao

doi:10.4028/www.scientific.net/amr.1120-1121.1395

Cited by 3 publications

(2 citation statements)

References 16 publications

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“…Copper is likewise a fundamental component for hemoglobin amalgamation, rectify nerve working, and bone improvement, Copper insufficiency causes ischemic coronary illness, iron deficiency, and abnormal wool growth (3). Many techniques are used to determine copper including atomic absorption spectrometry (4)(5)(6), potentiometry (7)(8)(9)(10)(11), inductive coupled plasma-emission spectrometry (12), inductive coupled plasma-mass spectrometry (13), and flow injection catalytic photometric method (14).…”

Section: Introductionmentioning

confidence: 99%

Spectrophotometric Determination of Copper(II) using 2,2[O-Tolidine-4,4-bis azo]bis[4,5-diphenyl imidazole](MBBAI)

Shaheed¹

2020

Baghdad Sci.J

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Spectrophotometric method was developed for the determination of copper(II) ion. Synthesized (2,2[O-Tolidine-4,4-bis azo]bis[4,5-diphenyl imidazole]) (MBBAI) was used as chromogenic reagent at pH=5. Various factors affecting complex formation, such as, pH effect, reagent concentration, time effect and temperature effect, have been considered and studied. Under optimum conditions concentration ranged from (5.00-80.00) µg/mL of copper(II) obeyed Beer`s Low. Maximum absorption of the complex was 409nm with molar absorpitivity 0.127x10 4 L mol -1 cm -1 . Limit of detection(LOD) and Limit of quantification were 1.924 and 6.42 μg/mL, respectively. The stoichiometric composition of the chelate is 1:2 (Cu:MBBAI). Experimental results for studying some selected ions as interference were reported. The developed method was successfully applied to determine copper (II) ion in dental filling.

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Section: Introductionmentioning

confidence: 99%

Spectrophotometric Determination of Copper(II) using 2,2[O-Tolidine-4,4-bis azo]bis[4,5-diphenyl imidazole](MBBAI)

Shaheed¹

2020

Baghdad Sci.J

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“…Many techniques can be used to determine copper percentage in its compounds. Some of these are atomic absorption spectrometry [12][13][14], inductive coupled plasma-emission spectrometry [15], potentiometry [16], derivative potentiometric stripping analysis [17], flow injection catalytic photometric method [18][19], and inductive coupled plasma-mass spectrometry [19]. Several studies were published for spectral estimation of Cu(II).…”

Section: ■ Introductionmentioning

confidence: 99%

Spectrophotometric Determination of Cu(II) in Analytical Sample Using a New Chromogenic Reagent (HPEDN)

2020

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The sensitive, accurate and rapid spectrophotometric method that can be used for determination of Cu(II) in the analytical samples using a new chromogenic reagent azo-Schiff base 1-((4-(1-(2-hydroxyphenylimino)ethyl)-phenyl)diazenyl) naphthalene-2-ol (HPEDN). The synthesized new (azo-Schiff base) ligand was complexed with copper(II) and characterized using UV/Vis spectroscopy, IR spectra, 1H-NMR, 13CN-MR spectra, Molar electrical connectivity, and measuring of their melting points. Then obtained complex showed a brown color with maximum absorption at λmax = 500 nm at pH = 9. Beer’s law is obeyed in the concentration in the range of 1.7 to 5.4 μg/mL. The molar absorption and Sandell’s sensitivity values of Cu(II) complex were found to be 0.5038 × 104 L mol–1 cm–1 and 0.0039 μg cm–2, respectively. Structure of the prepared complex was investigated by using the continuous variation, mole ratio method and slope analysis method. The obtained results showed that the complex has (1:2) (M:L) molar ratio and these results showed that this method were more sensitive, more precise and accuracy through the calculation of (Re, Erel, R.S.D)%. The most important interferences were due to, Co2+, Cd2+, Zn2+, Ni2+, Mn2+, Pd2+, Fe3+ and these were studied, and suitable masking agents were used. This method was applied for the determination of Cu(II) in alloy. The obtained results were compared with flame atomic absorption spectrometry method and these results were in a good agreement in these two cases.

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Extraction with 5-Chlorosalicylaldehyde Thiosemicarbazone of Cu(II) in Butyl Acetate and Its Spectrophotometric Study

Rodrigues,

Chaudhary

2024

Orient. J. Chem

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The highly reactive 5-Chlorosalicylaldehyde thiosemicarbazone (CSTSC) has been employed as an extractive reagent to create a simple and precise spectrophotometric technique for detecting Cu(II) spontaneously. The complex of 5-Chlorosalicylaldehyde thiosemicarbazone and Cu(II) has been quantitatively extracted in butyl acetate in the pH range of 5.4–6.4 after equilibrating for 60 sec. Up to 5.0 μg mL-1 concentration of Cu(II), the complex of 5-Chlorosalicylaldehyde thiosemicarbazone with Cu(II) in butyl acetate follows Beer’s law, with its maximum absorbance occurring at 380 nm. By employing the Jobs continuous variation method, the composition 1:1 has been determined for the Cu(II)-CSTSC complex, and this finding is further supported by the mole ratio method. The extracted complex remained stable for 72 hours. 5.47 x 10-3 μg cm-2 was determined to be Sandell's sensitivity, whereas 1.16 x 104 L mol-1 cm-1 was the molar absorptivity. Commercial and synthetic samples have been effectively analysed using this method.

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Determination of Trace Copper in Vanadium Alloy by Flame Atomic Absorption Spectrometry

Cited by 3 publications

References 16 publications

Spectrophotometric Determination of Copper(II) using 2,2[O-Tolidine-4,4-bis azo]bis[4,5-diphenyl imidazole](MBBAI)

Spectrophotometric Determination of Copper(II) using 2,2[O-Tolidine-4,4-bis azo]bis[4,5-diphenyl imidazole](MBBAI)

Spectrophotometric Determination of Cu(II) in Analytical Sample Using a New Chromogenic Reagent (HPEDN)

Extraction with 5-Chlorosalicylaldehyde Thiosemicarbazone of Cu(II) in Butyl Acetate and Its Spectrophotometric Study

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