Analysis of Magnesium and Aluminum Alloys by Atomic-Absorption Spectroscopy

Mansell, R.E.; Emmel, Herbert W.; McLaughlin, Ernest L.

doi:10.1366/000370266774385994

Cited by 11 publications

(5 citation statements)

References 2 publications

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“…None of the ions studied here caused any interference except for a depression by a large (100-fold) excess of Mg. A 6-ppm solution of Mn showed 50.2% absorption; with the presence of 600 ppm of Mg, the absorption was 43.4%. This is probably a matrix effect due to high solids content; a chemical interference of this type was not previously noted (14). More than 500 ppm of AI slightly depressed, due to matrix effects (8) and a large excess (not a problem in this determination) of Cu caused a very slight enhancement of the absorption of zinc (15).…”

Section: Resultsmentioning

confidence: 66%

“…Calibration plots for the major constituents of the ferrite compounds in question were determined each time data were taken, except for a few cases where two standards were used and unknowns were determined by direct proportion. The replicate determinations of these plots indicate that the practical upper limits of the six major elements under the conditions were used as follows: Fe, 15-18 ppm; Li, [12][13][14][15] ppm; Ni, 25 ppm; Mn, 15-18 ppm; Cu, 20 ppm; and Zn, 4-5 ppm. Deviations from Beer's law were noted at higher concentrations.…”

Section: Resultsmentioning

confidence: 99%

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Atomic absorption analysis of ferrites

Levine¹

1968

Anal. Chem.

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Two important conclusions can be drawn from this study: that potassium iodate is stable in the melt at this temperature for periods of at least hours, and that a method has been developed which can be used to determine iodate (and other stable positive oxidation states of iodine) sampled from tMs fused salt medium. and would, therefore, introduce positive errors in the analyses. Table I presents the data obtained for the determination of potassium iodate in the eutectic melt by this method. With reference to column 3, the relative error in the analyses is about 1 %. However, because duplicate aliquots generally agreed to-within a few tenths of one per cent, the error observed most probably reflects the difficulty in measuring the total volume of the melt (-100 ml) and is not a result of errors inherent in the method.

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Section: Resultsmentioning

confidence: 66%

Section: Resultsmentioning

confidence: 99%

Atomic absorption analysis of ferrites

Levine¹

1968

Anal. Chem.

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“…The organic extract was then analyzed by atomic absorption spectroscopy. When manganese was determined, the MIBK solution was analyzed immediately because the manganese-APDC complex is unstable in this solvent (9).…”

Section: Analytical Proceduresmentioning

confidence: 99%

Determination of Transition Metals in Cigarette Smoke Condensate by Solvent Extraction and Atomic Absorption Spectroscopy

Morie¹,

Morrisett²

1974

Beiträge Zur Tabakforschung / Contributions to Tobacco Research

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A method for the determination of trace transition metals in cigarette smoke is described. The smoke particulate matter is digested in nitric acid, the acid is neutralized, and metal ions are complexed with ammonium 1-pyrrolidinecarbodithioate and extracted with methyl isobutyl ketone. The metals are then determined in the organic solvent by atomic absorption spectroscopy. The sensitivity of the method is enhanced by the use of the methyl isobutyl ketone extraction. The method was evaluated for the determination of manganese, copper, iron, and zinc in the total particulate matter of smoke from University of Kentucky reference cigarettes and from commercial cigarettes. The amounts of these metals found in the smoke of a typical commercial filter cigarette are: 0.04 µg Mn, 0.10 µg Cu, 0.8 µg Fe, and 0.6 µg Zn. The method was used to show that cellulose acetate cigarette filters remove about the same percentage of metals as total particulate matter from smoke

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“…Literature survey revealed that simultaneous estimation of aluminium and magnesium was done by atomic absorption spectroscopy, 7,8 potentiometrically, 9 hydroxide co-precipitation, 10 complexometrically 11,12 and inductively coupled plasma optical emission spectroscopy. 13 The aim of the present work was to develop an inductively coupled plasma mass spectrometric method for the analysis of aluminium and magnesium using closed vessel microwave-assisted digestion and validate the method.…”

Section: Introductionmentioning

confidence: 99%

Development and validation of a simple microwave-assisted digestion sample preparation technique for the estimation of aluminium and magnesium in a few pharmaceutical dosage forms by an inductively coupled-mass spectrometer (ICP-MS)

Pal

Sundararajan

2023

Eur J Mass Spectrom (Chichester)

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Rationale: A simple, sensitive, reliable, validated, inductively coupled plasma mass spectrometric method for the determination of aluminium and magnesium using a simple common microwave-assisted digestion sample preparation technique for a few commonly used formulations was developed and validated according to International Conference on Harmonization Q3D and the United States Pharmacopeia general chapter <232> and <233>. The following pharmaceutical dosage forms were considered for estimation of aluminium and magnesium: Alumina, magnesia simethicone oral suspension, Alumina, magnesia simethicone chewable tablets, alumina and magnesia oral suspension, alumina and magnesium carbonate oral suspension. Methods: The methodology included optimizing a common microwave assisted digestion method, selecting the isotopes, choosing the measurement technique, and designating internal standards. The finalized microwave assisted procedure was a two-step program where in the first step the samples were ramped for 10 min to a temperature of 180 °C and hold for 5 min followed by ramping for 10 min to a temperature of 200 °C and hold for 10 min. Magnesium (24Mg) and aluminium (27Al) isotopes were finalized, internal standard assigned for both the isotopes was yttrium (89Y) with Helium (kinetic energy discrimination-KED) as the measuring mode. System suitability was run before initiating analysis to ensure that system performance was consistent. Results: Analytical validation parameters like specificity, linearity (from 25% to 200% of sample concentration), the detection limit and the limit of quantification were established. For all these dosage forms, the method's precision was demonstrated by analyzing the percentage relative standard deviation for six injections. Accuracy was established from 50% to 150% of instrument working concentration (J-levels) for aluminium and magnesium for all the formulations and was found to be within the range of 90–120%. Conclusion: This common analysis method, along with the common microwave-digestion technique applies to numerous types of matrices for a finished dosage form with aluminium and magnesium.

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Analysis of Magnesium and Aluminum Alloys by Atomic-Absorption Spectroscopy

Cited by 11 publications

References 2 publications

Atomic absorption analysis of ferrites

Atomic absorption analysis of ferrites

Determination of Transition Metals in Cigarette Smoke Condensate by Solvent Extraction and Atomic Absorption Spectroscopy

Development and validation of a simple microwave-assisted digestion sample preparation technique for the estimation of aluminium and magnesium in a few pharmaceutical dosage forms by an inductively coupled-mass spectrometer (ICP-MS)

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