Trace-Metal Analysis Using Atomic Absorption Spectrophotometry

1972 ◽  
Vol 64 (10) ◽  
pp. 669-673 ◽  
Author(s):  
John T. Egan ◽  
George E. Peterson
Keyword(s):  
Trace Metal ◽  
Atomic Absorption ◽  
Atomic Absorption Spectrophotometry ◽  
Metal Analysis ◽  
Trace Metal Analysis ◽  
Absorption Spectrophotometry

Temperature-Programmable Furnace for Ashing of Foods in Trace Metal Analysis

1977 ◽  
Vol 60 (1) ◽  
pp. 239-240
Author(s):  
Walter Holak
Keyword(s):  
Trace Metal ◽  
Anodic Stripping Voltammetry ◽  
Stripping Voltammetry ◽  
Differential Pulse ◽  
Atomic Absorption Spectrophotometry ◽  
Metal Analysis ◽  
Trace Metal Analysis ◽  
Absorption Spectrophotometry ◽  
Anodic Stripping ◽  
Cadmium Lead

Abstract The use of a programmable furnace in preparing samples for determining cadmium, lead, copper, and zinc by differential pulse anodic stripping voltammetry or atomic absorption spectrophotometry is convenient and timesaving. Recovery data for these 4 metals in various foods (tuna, sardines, and milk) were 93— 96% for 0.01—1 ppm cadmium, 96—114% for 0.05—5 ppm lead, 100—108% for 2—10 ppm copper, and 97% for 10 ppm zinc.

Derivative-Fourier transforms-polynomial fit: a coupling of interest in common non-ideal cases arises during trace metal analysis using graphite furnace atomic absorption spectrometry

RSC Advances ◽  
2015 ◽  
Vol 5 (59) ◽  
pp. 47866-47875 ◽  
Author(s):  
Mohamed A. Korany ◽  
Hesham. Z. Ibrahim ◽  
Marwa A. A. Ragab ◽  
Mervat A. Abdel-Kawi ◽  
Abd El Aal A. A. Sayed
Keyword(s):  
Trace Metal ◽  
Atomic Absorption ◽  
Fourier Transforms ◽  
Graphite Furnace ◽  
Absorption Spectrometry ◽  
Metal Analysis ◽  
Trace Metal Analysis ◽  
Polynomial Fit ◽  
Graphite Furnace Atomic Absorption ◽  
Chemometric Treatment

Chemometric treatment was proposed for handling graphite furnace atomic absorption (GFAAS) data.

Spectrophotometric investigation of sensitive complexing agents for the determination of zinc in serum.

1985 ◽  
Vol 31 (8) ◽  
pp. 1310-1313 ◽  
Author(s):  
R Homsher ◽  
B Zak
Keyword(s):  
Trace Metal ◽  
Atomic Absorption ◽  
Serum Zinc ◽  
Atomic Absorption Spectrophotometry ◽  
Molar Absorptivity ◽  
Water Soluble ◽  
The Other ◽  
Complexing Agents ◽  
Absorption Spectrophotometry

Abstract Of two sensitive complexometric reagents for the colorimetry of serum zinc that we investigated, one, 2-(5-bromo-2-pyridylazo)-5-diethylaminophenol (Br-PADAP), was found to be a potentially useful compound for trace-metal determinations. It has a high molar absorptivity (120 000 L mol-1 cm-1) but is not convenient to use because it is not very soluble in water. The other reagent, a related pyridylazo compound, is 2-(5-bromo-2-pyridylazo)-5-(N-n-propyl-N-3-sulfopropylamino)phenol (5-BR-PAPS). It seems better suited for use in routine zinc determinations because, besides being water soluble, it has a higher molar absorptivity, 130 000 L mol-1 cm-1. Results by the proposed method developed with 5-Br-PAPS correlated well with those by atomic absorption spectrophotometry. The between-run CV for control sera was less than 5%; the within-run CV (same controls) was less than 4%.

Sign in / Sign up

Export Citation Format

Share Document