Determination of metals in waters and organic materials by flameless atomic absorption spectrometry with a wire loop atomizer

1979 ◽  
Vol 51 (14) ◽  
pp. 2370-2375 ◽  
Author(s):  
M. H. West ◽  
J. F. Molina ◽  
C. L. Yuan ◽  
D. G. Davis ◽  
J. V. Chauvin
Keyword(s):  
Atomic Absorption Spectrometry ◽  
Atomic Absorption ◽  
Organic Materials ◽  
Absorption Spectrometry ◽  
Wire Loop ◽  
Flameless Atomic Absorption ◽  
Flameless Atomic Absorption Spectrometry

Determination of Submicrogram Amounts of Mercury in Standard Reference Materials by Flameless Atomic Absorption Spectrometry

1972 ◽  
Vol 55 (6) ◽  
pp. 1339-1344
Author(s):  
Theodore C Rains ◽  
Oscar Menis
Keyword(s):  
Atomic Absorption ◽  
Reference Materials ◽  
Organic Materials ◽  
Absorption Spectrometry ◽  
Standard Reference Materials ◽  
Absorption Method ◽  
Absorption System ◽  
Flameless Atomic Absorption ◽  
Flameless Atomic Absorption Spectrometry

Abstract In a study of the flameless atomic absorption method for the determination of nanogram amounts of mercury in organic materials, the technique was improved to provide greater precision and accuracy. The loss of mercury during the digestion of organic materials with nitric, sulfuric, and perchloric acids is prevented by controlled heating and a packed refluxing column. The reduction and absorption system was simplified by using a heated absorption cell which alleviates the interference of volatile vapors. This method has been applied to the determination of mercury in NBS Standard Reference Materials of orchard leaves, liver, and coal, and the results were compared with results obtained with 2 other analytical methods.

Sign in / Sign up

Export Citation Format

Share Document