Determination of lead and mercury in sea water by preconcentration in a flow injection system followed by atomic absorption spectrometry detection

Talanta ◽  
2001 ◽  
Vol 55 (6) ◽  
pp. 1071-1078 ◽  
Author(s):  
L Bravo-Sánchez
Keyword(s):  
Atomic Absorption Spectrometry ◽  
Atomic Absorption ◽  
Flow Injection ◽  
Sea Water ◽  
Absorption Spectrometry ◽  
Injection System ◽  
Flow Injection System

Flow injection system for cadmium preconcentration on poly(octadecyl diitaconate) (PDI-18) and atomic absorption spectrometry detection

2001 ◽  
Vol 438 (1-2) ◽  
pp. 259-266 ◽  
Author(s):  
Y Petit De Peña ◽  
W López ◽  
M Burguera ◽  
J.L Burguera ◽  
López-Carrasquero ◽  
...  
Keyword(s):  
Atomic Absorption Spectrometry ◽  
Atomic Absorption ◽  
Flow Injection ◽  
Absorption Spectrometry ◽  
Injection System ◽  
Flow Injection System

scholarly journals Arsenic Determination in Certifiable Color Additives by Dry Ashing Followed by Hydride Generation Atomic Absorption Spectrometry

1999 ◽  
Vol 82 (2) ◽  
pp. 327-330 ◽  
Author(s):  
Nancy M Hepp
Keyword(s):  
Atomic Absorption Spectrometry ◽  
Atomic Absorption ◽  
Hydride Generation ◽  
Absorption Spectrometry ◽  
Injection System ◽  
Wet Digestion ◽  
Dry Ashing ◽  
Flow Injection System ◽  
Arsenic Determination

Abstract The preparations of digested samples of certifiable color additives by dry ashing and wet digestion for arsenic analysis by hydride generation atomic absorption spectrometry (AAS) were compared. The dry ashing technique was based on the preparation used in ASTM D4606-86 for determination of As and Se in coal. The acid digestion method used nitric and sulfuric acids heated by microwaves in sealed vessels. The digested color additives were analyzed for As by using hydride generated from sodium borohydride mixed with the acidified solution on a flow injection system leading to an atomic absorption spectrometer. Dry ashing was preferable to wet digestion because wet digestion yielded poor recoveries of added As. Dry ashing followed by hydride generation AAS gave determination limits of 0.5 ppm As in the color additives. At a specification level of 3 ppm As, the precision of the method using dry ashing was ± 0.4 ppm (95% confidence interval).

Flow injection system for atomic absorption spectrometry

1979 ◽  
Vol 111 ◽  
pp. 163-167 ◽  
Author(s):  
Norimasa Yoza ◽  
Yuji Aoyagi ◽  
Shigeru Ohashi ◽  
Akira Tateda
Keyword(s):  
Atomic Absorption Spectrometry ◽  
Atomic Absorption ◽  
Flow Injection ◽  
Absorption Spectrometry ◽  
Injection System ◽  
Flow Injection System
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