Atomic-Absorption Spectroscopy—A Critical Review

Slavin, Walter

doi:10.1366/000370266774385787

Cited by 62 publications

(10 citation statements)

References 38 publications

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“…Nickel. More than 500 ppm of Al has been known to slightly depress the absorption of Ni due to matrix effects (8) , but there have been no reports of other interferences while a premix burner and air-acetylene flame are used (9). None of the ions studied here interfered, with the exception of S042and PO43-.…”

Section: Resultsmentioning

confidence: 73%

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: 73%

Atomic absorption analysis of ferrites

Levine¹

1968

Anal. Chem.

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“…Sodium, potassium, zinc and copper concentrations were determined by atomic absorption spectroscopy (Slavin, 1966). Chloride concentration was determined on 1 g samples of inoculated or uninoculated peat each of which had been ground in a mortar and extractcd with boiling water.…”

Section: Chemical Analysis Of Peat Harvested In Different Yearsmentioning

confidence: 99%

Sodium Chloride as a Cause of Low Numbers of Rhizobium in Legume Inoculants

Steinborn

Roughley

1974

Journal of Applied Bacteriology

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Summary. A rapid reduction, after manufacture, in numbers of Rhizobium trifolii in commercial legume inoculants was observed in 1971 and explained by the presence of high concentrations of sodium chloride in the peat used as carrier material. A strain of R. trifolii growing in broth proved to be more sensitive to sodium ions than did 2 strains of R. meliloti but was more tolerant of up to 0.3% of chloride. The effect of salt differed somewhat according to the source of peat used as carrier, but peat containing °0.2% of chloride (expressed as a % of dry peat) may cause considerable loss of viability of rhizobia.

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“…In order to eliminate the phosphate interference upon calcium analysis, 2 ml of 4% LaCl3 were added to each sample [Slavin, 1966], The calcium concentrations ß-a were calculaed from standard calibration curves. The data obtained were subjected to analysis of variance.…”

Section: Calcium Determinationmentioning

confidence: 99%

Effect of Sodium Lactate under Conditions of Neutral pH on the Release of Calcium from the Enamel Surface in vitro

Plasschaert¹,

Mörch²,

König³

1972

Caries Res

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The aim of the present investigation was to study the influence of complexing agents on the release of calcium from enamel surfaces under neutral pH conditions. Standardized enamel windows (Ø 4 mm) were prepared from human premolars and exposed to 25 ml batches of different sodium lactate solutions (0, 0.31, 0.62, 1.25, 2.5, 5 and 10%, pH 7.2) each solution containing 8 windows. From each batch 2-ml samples were taken after 1, 2, 4, 8, 16 and 32. The samples were analysed for Ca with the aid of atomic absorption spectroscopy. The Ca concentration in the solutions was found to increase significantly with the length of exposure time and with increasing sodium lactate concentration. The findings demonstrate a strong demineralizing effect of neutral solutions of sodium lactate which might be explained by the capacity to complex calcium; the kinetics of dissolution suggest a direct removal of calcium from apatite crystals.

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Atomic-Absorption Spectroscopy—A Critical Review

Cited by 62 publications

References 38 publications

Atomic absorption analysis of ferrites

Atomic absorption analysis of ferrites

Sodium Chloride as a Cause of Low Numbers of Rhizobium in Legume Inoculants

Effect of Sodium Lactate under Conditions of Neutral pH on the Release of Calcium from the Enamel Surface in vitro

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