scholarly journals Direct determination of inorganic and organic mercury in urine by flameless atomic absorption spectrophotometry using the alkaline-reduction technique. A modification of the method of Littlejohn et al.

1988 ◽  
Vol 42 (6) ◽  
pp. 1023-1028
Author(s):  
Fumio Shirai
Keyword(s):  
Atomic Absorption ◽  
Direct Determination ◽  
Atomic Absorption Spectrophotometry ◽  
Reduction Technique ◽  
Organic Mercury ◽  
Flameless Atomic Absorption ◽  
Absorption Spectrophotometry ◽  
Mercury In Urine ◽  
Inorganic And Organic

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.

Instrumental Parameters for Determination of Mercury by Flameless Atomic Absorption Spectrophotometry

1973 ◽  
Vol 56 (6) ◽  
pp. 1306-1312
Author(s):  
Frank E Hoggins ◽  
Robert R Brooks
Keyword(s):  
Atomic Absorption ◽  
Gas Flow ◽  
Atomic Absorption Spectrophotometry ◽  
Heating Time ◽  
Reduction Technique ◽  
Optimum Conditions ◽  
Flameless Atomic Absorption ◽  
Absorption Spectrophotometry ◽  
Stirring Time

Abstract Studies have been made on the instrumental parameters affecting the performance of the solution-reduction and the thermal-volatilization techniques of flameless atomic absorption for mercury. Optimum conditions established for the solution-reduction technique were: gas flow 5 L/min, stirring time 100 sec, and stirring rate at least 1250 rpm. Optimum conditions for the thermal-volatilization technique were: flow rate 1.5 L/min, heating time 20 sec. The 2 techniques are compared.

Determination of Mercury in Food Products and Biological Fluids by Aeration and Flameless Atomic Absorption Spectrophotometry

1971 ◽  
Vol 54 (1) ◽  
pp. 206-210 ◽  
Author(s):  
Virginia A Thorpe
Keyword(s):  
Atomic Absorption ◽  
Biological Fluids ◽  
Food Products ◽  
Atomic Absorption Spectrophotometry ◽  
Good Precision ◽  
Flameless Atomic Absorption ◽  
Absorption Spectrophotometry ◽  
Wet Digestion ◽  
Mercury In Fish

Abstract This paper describes a simple, rapid modification of a method developed at the Fisheries Research Board of Canada for determining mercury in fish and other food products. Wet digestion and flameless techniques of atomic absorption spectrophotometry are used. Replicate analyses on different days showed good precision and samples spiked with known amounts of mercury showed adequate recovery.

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