Calculation of Concentration Corresponding to the Point of Intersection of High and Low Concentration Segments of Analytical Curves in Atomic Emission Flame Spectrometry.

1965 ◽  
Vol 37 (10) ◽  
pp. 1216-1218 ◽  
Author(s):  
James. Winefordner ◽  
Thomas. Vickers ◽  
Lloyd. Remington
Keyword(s):  
Atomic Emission ◽  
Low Concentration ◽  
Point Of Intersection ◽  
Emission Flame ◽  
Flame Spectrometry

scholarly journals Influence of Saturation Phenomena on Laser-Excited Atomic Fluorescence Flame Spectrometry

1973 ◽  
Vol 28 (2) ◽  
pp. 273-279
Author(s):  
J. Kühl ◽  
S. Neumann ◽  
M. Kriese
Keyword(s):  
Power Density ◽  
Laser Power ◽  
Atomic Emission ◽  
Equation Model ◽  
Laser Power Density ◽  
Atomic Level ◽  
Dye Laser ◽  
Atomic Fluorescence ◽  
Emission Flame ◽  
Flame Spectrometry

Using a simple rate equation model, the laser power density Ic necessary to reach 50% of the saturation limited population of the excited atomic level under typical flame conditions is calculated. For Na atoms aspirated into the flame a saturating power density for irradiation with a narrow dye laser line (bandwidth 0.033 Å) of Ic ~ 0.4 kW/cm2 was determined. With the aid of a dye laser with an appropriate laser power density, analytical curves for Na were measured yielding a detection limit of 0.2 ng/ml. This sensitivity is comparable with the best results obtained by atomic emission flame spectrometry.

Some causes of bending of analytical curves in atomic emission flame spectrometry

1966 ◽  
Vol 36 ◽  
pp. 42-56 ◽  
Author(s):  
T.J. Vickers ◽  
L.D. Remington ◽  
J.D. Winefordner
Keyword(s):  
Atomic Emission ◽  
Emission Flame ◽  
Flame Spectrometry

Simultaneous multi-element atomic emission flame spectrometry with an image vidicon detector

1974 ◽  
Vol 69 (2) ◽  
pp. 455-460 ◽  
Author(s):  
D.O. Knapp ◽  
N. Omenetto ◽  
L.P. Hart ◽  
F.W. Plankey ◽  
J.D. Winefordner
Keyword(s):  
Atomic Emission ◽  
Emission Flame ◽  
Flame Spectrometry

Calculation of the Limit of Detectability in Atomic Emission Flame Spectrometry.

1964 ◽  
Vol 36 (10) ◽  
pp. 1939-1946 ◽  
Author(s):  
J. D. Winefordner ◽  
T. J. Vickers
Keyword(s):  
Atomic Emission ◽  
Emission Flame ◽  
Flame Spectrometry

Comparison of Nebulization-Spray Chamber Arrangements for Atomic Fluorescence and Atomic Emission Flame Spectrometry

1981 ◽  
Vol 35 (2) ◽  
pp. 149-152 ◽  
Author(s):  
J. J. Horvath ◽  
J. D. Bradshaw ◽  
J. D. Winefordner
Keyword(s):  
Detection Limits ◽  
Atomic Emission ◽  
Ultrasonic Nebulizer ◽  
Atomic Fluorescence ◽  
Batch Type ◽  
Uptake Rates ◽  
Pneumatic Nebulizer ◽  
Emission Flame ◽  
Flame Spectrometry ◽  
Solution Uptake

Ten different commercial atomic absorption nebulizer-chamber systems with a capillary burner and three laboratory-constructed ultrasonic nebulizer chamber systems with a miniflame burner are compared with respect to solution uptake rates, concentrational and absolute detection limits, efficiencies of nebulization, and common flame spectrometric interferences. Measurements of both flame atomic emission (Sr, Ca, K, Na) and flame atomic fluorescence (Mg, Cu, Pb) were performed for all cases. The ultrasonic and pneumatic nebulizer systems resulted in about the same concentrational detection limits, but the former resulted in ∼102X lower absolute detection limits. The batch type ultrasonic nebulizer gave much higher nebulization efficiencies than the continuous flow ultrasonic nebulizer or any of the pneumatic nebulizer systems. Chemical interferences were approximately the same in all nebulizer-burner systems. Nebulizer chambers with a J-bead resulted in lower detection limits than the same systems without J-beads.

Measurement of microsamples in atomic emission and atomic fluorescence flame spectrometry

1972 ◽  
Vol 60 (1) ◽  
pp. 55-64 ◽  
Author(s):  
J. R. Sarbeck ◽  
P. A. St. John ◽  
J. D. Winefordner
Keyword(s):  
Atomic Emission ◽  
Atomic Fluorescence ◽  
Flame Spectrometry

Determination of Sodium and Potassium in Blood of Oceanic Fish by Emission Flame Spectrometry Using an Exponential Extrapolation with Multiple Standard Additions

1975 ◽  
Vol 29 (5) ◽  
pp. 404-407 ◽  
Author(s):  
T. R. Folsom ◽  
N. Hansen ◽  
W. E. Weitz ◽  
G. J. Parks
Keyword(s):  
Simple Manner ◽  
Tuna Fish ◽  
Exponential Curve ◽  
Flame Emission ◽  
Standard Additions ◽  
Emission Flame ◽  
Flame Spectrometry ◽  
Sodium And Potassium ◽  
Similar Elements

A method is described for using multiple standard additions to determine sodium and potassium in samples of digested but unpurified blood of oceanic tuna fish whose flame emission responses are nonlinear. An exponential curve is fit in a rational manner to signals of the unknown and two or more spiked unknowns. Evidences are given suggesting that higher precision can be obtained in determination of these and similar elements in biological materials in a direct and simple manner.

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