Study on the elimination of interferences in the determination of barium by atomic absorption spectrophotometry

Magill, W. A.; Svehla, G.

doi:10.1007/bf00430601

Cited by 7 publications

(2 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Whether an algorithm can be found, which will fit all possible interference effects in flame AAS has to be further investigated. The very similar relationship between concentration and the interference effect for a lot of interferents documented in the literature (58,59) supports this hope. Some interference problems can be overcome by optimizing instrumental parameters, such as flame stoichiometry or observation height.…”

Section: Methodssupporting

confidence: 70%

Expansion of dynamic working range and correction for interferences in flame atomic absorption spectrometry using flow-injection gradient ratio calibration with a single standard

Sperling¹,

Fang²,

Welz³

1991

Anal. Chem.

View full text Add to dashboard Cite

The potential usefulness of the reflective properties of microwave-induced plasma (MIP) as a gas chromatographic detector Is reported. The detector operation is based on the measurement of the change In reflected power arising from the Interaction of the analyte with an atmospheric pressure argon plasma sustained In the highly efficient TM010 resonant cavity. Microwave forward power and tangential gas flow are optimized for -pentane. The lowest microwave powers produced the best signal sensitivities. For the particular discharge tube employed, a maximum response Is obtained at approximately 1.6 L/mln. The nonlinear calibration curve obtained for n-pentane Is discussed, and Its conversion to a linearized calibration curve Is presented. Calculated detection limits for carbon and hydrogen lie In the upper nanograms of element per second range.

show abstract

Section: Methodssupporting

confidence: 70%

Expansion of dynamic working range and correction for interferences in flame atomic absorption spectrometry using flow-injection gradient ratio calibration with a single standard

Sperling¹,

Fang²,

Welz³

1991

Anal. Chem.

View full text Add to dashboard Cite

show abstract

“…Um das Auftreten systematischer Fehler bei der Bestimmung auszuschließen, müssen Kontrollproben für die Überprüfung (Richtigkeitskontrolle) in jeder Analysenserie mitgeführt werden (1). Systematische Fehler bei der Bestimmung von Ca durch Atomabsprptionsspektrometrie können von Phosphat-und Sulfationen hervorgerufen werden (2)(3)(4)(5)(6) …”

Section: Introductionunclassified

Systematische Fehler durch Phosphat- und Sulfatgehalte in Human- und Kontrollseren bei der atomabsorptionsspektrometrischen Calcium-Bestimmung

Schulz¹,

Böttger²,

Meder³

et al. 1981

CCLM

View full text Add to dashboard Cite

Zusammenfassung: Es wird anhand von Messungen mit dem Elektrolytautomaten FL 6 an Kontroll-und Humanseren gezeigt, daß bei optimaler Zerstäuber-und Brennereinstellung auf den Lanthanzusatz zum Ausschalten von Stö-rungen durch Phosphat bei der atomabsorptionsspektrometrischen Calciumbestimmung verzichtet werden kann. Bei einigen Kontrollseren traten dann jedoch Abweichungen auf, die auf die Gegenwart von Sulfat zurückzuführen sind. Zwischen den Sulfatgehalten und den Abweichungen von den mit Lanthanzusatz ermittelten Calciumwerten besteht ein direkter Zusammenhang. Systematic errors due to phosphate and sulphate in human and control serum in the determination of calcium by atomic absorption spectroscopySummary: Investigations of control and human serum with the Elektrolytautomat FL 6 demonstrated that it is not imperative to add lanthanum to eliminate phosphate interference in the atomic absorption spectrometric determination of calcium, providing nebulizer and burner are adjusted optimally. However, a few control specimens showed deviations due to the presence of sulphate. There is a correlation between sulphate content and the deviation of calcium Values from those obtained with the addition of lanthanum. Einleitung

show abstract

Bibliography

1998

Atomic Absorption Spectrometry

View full text Add to dashboard Cite

Study on the elimination of interferences in the determination of barium by atomic absorption spectrophotometry

Cited by 7 publications

References 12 publications

Expansion of dynamic working range and correction for interferences in flame atomic absorption spectrometry using flow-injection gradient ratio calibration with a single standard

Expansion of dynamic working range and correction for interferences in flame atomic absorption spectrometry using flow-injection gradient ratio calibration with a single standard

Systematische Fehler durch Phosphat- und Sulfatgehalte in Human- und Kontrollseren bei der atomabsorptionsspektrometrischen Calcium-Bestimmung

Bibliography

Contact Info

Product

Resources

About