Communications. Method for the minimisation of matrix interferences in the determination of lead and cadmium in non-saline waters by atomic-absorption spectrophotometry using electrothermal atomisation

The Analyst ◽  
1977 ◽  
Vol 102 (1213) ◽  
pp. 310 ◽  
Author(s):  
K. C. Thompson ◽  
K. Wagstaff ◽  
K. C. Wheatstone
Keyword(s):  
Atomic Absorption ◽  
Atomic Absorption Spectrophotometry ◽  
Matrix Interferences ◽  
Absorption Spectrophotometry ◽  
Lead And Cadmium ◽  
Saline Waters

Direct determination of lead and cadmium in blood and urine by flameless atomic absorption spectrophotometry.

1979 ◽  
Vol 25 (11) ◽  
pp. 1948-1953 ◽  
Author(s):  
V Lagesson ◽  
L Andrasko
Keyword(s):  
Atomic Absorption ◽  
Direct Determination ◽  
Atomic Absorption Spectrophotometry ◽  
Flameless Atomic Absorption ◽  
Absorption Spectrophotometry ◽  
Lead And Cadmium

Abstract We describe procedures for direct determination of lead and cadmium in blood and urine by flameless atomic absorption spectrophotometry. Before analysis, the samples are pre-ashed in microboats in an ordinary laboratory oven. In this way, many samples can be prepared and pre-ashed simultaneously. We find the procedures presented in this work to be rapid, accurate, and precise.

scholarly journals VALIDATION AND QUANTITATIVE ANALYSIS OF LEAD AND CADMIUM IN DRIED STEVIA LEAVES BY GRAPHITE FURNACE ATOMIC ABSORPTION SPECTROPHOTOMETRY

2018 ◽  
Vol 127 (1A) ◽  
Author(s):  
Dong Kim Nguyen ◽  
Ngân Thi kim Lâm
Keyword(s):  
Atomic Absorption ◽  
Limit Of Detection ◽  
Graphite Furnace ◽  
Atomic Absorption Spectrophotometry ◽  
Limit Of Quantification ◽  
Absorption Spectrophotometry ◽  
Lead And Cadmium ◽  
Graphite Furnace Atomic Absorption ◽  
Gf Aas

<p><strong>Abstract: </strong>A Graphite Furnace - Atomic Absorption Spectrophotometry (GF-AAS) for the quantification of cadmium (Cd) and lead (Pb) in dried stevia leaves were developed and validated. The method was validated for some parameters, namely linearity and range, precision, accuracy, Limit of Detection (LoD) and Limit of Quantification (LoQ), according to International Conference on Harmonization (ICH). The developed method was linear over the concentration ranging 0 - 2 µg/L (Cd) and 0 – 20 µg/L (Pb). The correlation coefficient (r) obtained for two metal are higher than 0.995. Limit of detection (LOD) of Cd and Pb  was 0.12 µg/L, 0.33 µg/L. The recovery and repeatability in this method were good enough for determining these heavy metals in dried stevia leaves sample.The developed method has been applied successfully for determination of Cd and Pb levels in dried stevia leaves in Vietnam.</p><p class="Default"><strong>Keywords: Stevia, Atomic Absorption Spectrophotometera (AAS), recovery, detection limit, validation.</strong></p>

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