scholarly journals Determinations of Total Mercury in Drinking Water and of Methylmercury in Air by Graphite-Furnace Atomic Absorption Spectrophotometry Using 2,3-Dimercaptopropane-1-sulfonate as a Complexing Agent.

1998 ◽  
Vol 14 (5) ◽  
pp. 983-986 ◽  
Author(s):  
Hou-Chuan WANG ◽  
Yuh-Chung HWANG ◽  
Chuan-Jier HSIEH ◽  
Mao-Sung KUO
Keyword(s):  
Drinking Water ◽  
Atomic Absorption ◽  
Total Mercury ◽  
Graphite Furnace ◽  
Atomic Absorption Spectrophotometry ◽  
Complexing Agent ◽  
Absorption Spectrophotometry ◽  
Graphite Furnace Atomic Absorption

A sensitive high-temperature electrothermal atomic absorption analysis for Rb+ in erythrocytes and plasma of normal and hypertensive persons.

1985 ◽  
Vol 31 (2) ◽  
pp. 274-276 ◽  
Author(s):  
K F Hallis ◽  
N A Boon ◽  
C M Perkins ◽  
J K Aronson ◽  
D G Grahame-Smith
Keyword(s):  
Atomic Absorption ◽  
Healthy Subjects ◽  
Graphite Furnace ◽  
Atomic Absorption Spectrophotometry ◽  
Absorption Analysis ◽  
Healthy Individuals ◽  
Absorption Spectrophotometry ◽  
Graphite Furnace Atomic Absorption ◽  
The Matrix

Abstract This method for determination of Rb+ in human plasma and erythrocytes by graphite-furnace atomic absorption spectrophotometry has a sensitivity of 29 nmol/L for plasma, 12 nmol/L for erythrocytes. The detection limit is 24 nmol/L for plasma, 4.8 nmol/L for erythrocytes. This assay is approximately 30-fold more sensitive than previously reported techniques involving atomic absorption spectrophotometry, enabling use of smaller samples. The rubidium signal is linear with concentration up to 1.2 mumol/L, and addition of other cations to the matrix produces only minor alterations in the Rb+ signal. We measured plasma and erythrocytic Rb+ concentrations in healthy subjects and in patients with untreated essential hypertension. In both, our values are similar to those previously reported for healthy individuals.

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