Determination of iron and molybdenum in a dietetic preparation by flame AAS after dry ashing

Canfranc, E; Abarca, Angel; Sierra, Isabel; Marina, Marı́a Luisa

doi:10.1016/s0731-7085(00)00487-8

Cited by 43 publications

(23 citation statements)

References 4 publications

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“…The probable relative error ranged from 10.52% to 3.10% for concentrations of molybdenum(VI) from 20 to 200 ng/cm 3 . The results are presented in Table 1.…”

Section: 21mentioning

confidence: 99%

“…To access the selectivity of the method, the influence of some foreign ions on the inhibited reaction rates was studied, under the optimal conditions mentioned above, at a constant molybdenum(VI) concentration of 200 ng/cm 3 . The results are summarized in Table 2.…”

Section: Interference Studymentioning

confidence: 99%

“…Both methods are disadvantageous in terms of cost and the instruments used in routine analysis. [3][4][5][6] Sensitive techniques for the determination of trace amounts of molybdenum include inductively coupled plasma-atomic emission spectrometry (ICP/AES) [7][8][9] and neutron activation analysis (NAA). 10,11 The high instrumental costs and need for preconcentration and/or separation are common disadvantages.…”

Section: Introductionmentioning

confidence: 99%

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Kinetic Spectrophotometric Determination of Traces of Molybdenum(VI) by Its Inhibitory Effect on the Oxidation of 4-Hydroxycoumarine by Potassium Permanganate

Micić¹,

Simonović²,

Petković³

2006

ANAL. SCI.

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The present paper describes a simple, selective and sensitive kinetic method for the determination of trace amounts of molybdenum(VI) based on its inhibitory effect on the reaction oxidation of 4-hydroxycoumarine by KMnO4 in the presence of hydrochloric acid, at pH 1.75 at 25˚C. The rate of the indicator reaction was followed spectrophotometrically by measuring the decrease in the absorbance of KMnO4 at 525 nm. The development method includes optimization of the reagent concentration and temperature. The calibration graph was linear in the range of concentrations from 20 to 200 ng/cm 3 of molybdenum(VI). The probable relative error was in the interval 3.10 -10.52% for the concentration range of 200 -20 ng/cm 3 molybdenum(VI), respectively. The interference effects of the foreign ions were determined to assess the selectivity of the method. The developed method was found to have relatively good selectivity, sensitivity, simplicity and rapidity. The proposed method was applied to the determination of molybdenum(VI) in a particular type of steel and alloy (hastelloy).

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“…The probable relative error ranged from 10.52% to 3.10% for concentrations of molybdenum(VI) from 20 to 200 ng/cm 3 . The results are presented in Table 1.…”

Section: 21mentioning

confidence: 99%

Section: Interference Studymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Kinetic Spectrophotometric Determination of Traces of Molybdenum(VI) by Its Inhibitory Effect on the Oxidation of 4-Hydroxycoumarine by Potassium Permanganate

Micić¹,

Simonović²,

Petković³

2006

ANAL. SCI.

View full text Add to dashboard Cite

show abstract

“…Several techniques such as inductively coupled plasma mass spectrometry (ICP-MS), 2 atomic emission spectrometry (AES), [3][4][5][6] atomic absorption spectrometry (AAS) [7][8][9][10][11] and chromatography [12][13][14] have been reported for the determination of iron and aluminum. However, the relatively high instrumental costs and the needs for preconcentration, chromatographic separation, extraction or coprecipitation are the common limitations.…”

Section: Introductionmentioning

confidence: 99%

Determination of iron and aluminum based on the catalytic effect on the reaction of xylene cyanol FF with hydrogen peroxide and potassium periodate

Cai¹,

Xu²

2011

J. Braz. Chem. Soc.

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“…At present, the methods of determining iron include spectrophotometry, ICP, chemiluminescence, fluorescence analysis, plasma mass spectrum, electrochemical analysis, GFAAS, 4 FAAS, 5 polarography, 4 and others. [6][7][8] Flame and graphite-furnace atomic absorption spectrometry 9,10 are the most commonly used techniques for the determination of iron. But these methods are disadvantageous in terms of cost and instruments used in routine analysis.…”

Section: Introductionmentioning

confidence: 99%

Polarographic Determination of Total Iron Content Using a Fe2+/3+-Methylthymol Blue-NO2− System

Yang

Wang

et al. 2004

ANAL. SCI.

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Determination of iron and molybdenum in a dietetic preparation by flame AAS after dry ashing

Cited by 43 publications

References 4 publications

Kinetic Spectrophotometric Determination of Traces of Molybdenum(VI) by Its Inhibitory Effect on the Oxidation of 4-Hydroxycoumarine by Potassium Permanganate

Kinetic Spectrophotometric Determination of Traces of Molybdenum(VI) by Its Inhibitory Effect on the Oxidation of 4-Hydroxycoumarine by Potassium Permanganate

Determination of iron and aluminum based on the catalytic effect on the reaction of xylene cyanol FF with hydrogen peroxide and potassium periodate

Polarographic Determination of Total Iron Content Using a Fe2+/3+-Methylthymol Blue-NO2− System

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