Organic and inorganic arsenic speciation through ion exchange chromatography with particle beam-glow discharge mass spectrometry detection

2004 ◽  
Vol 19 (10) ◽  
pp. 1309 ◽  
Author(s):  
Jacob L. Venzie ◽  
W. Clay Davis ◽  
R. Kenneth Marcus
Keyword(s):  
Mass Spectrometry ◽  
Ion Exchange ◽  
Glow Discharge ◽  
Arsenic Speciation ◽  
Inorganic Arsenic ◽  
Particle Beam ◽  
Ion Exchange Chromatography ◽  
Exchange Chromatography ◽  
Mass Spectrometry Detection ◽  
Particle Beam Glow Discharge

Unexplained acidosis of malnutrition: a study by ion-exchange chromatography/mass spectrometry

2006 ◽  
Vol 20 (12) ◽  
pp. 1386-1389 ◽  
Author(s):  
P. J. Hilton ◽  
W. McKinnon ◽  
G. A. Lord ◽  
J.-M. R. Peron ◽  
L. G. Forni
Keyword(s):  
Mass Spectrometry ◽  
Ion Exchange ◽  
Ion Exchange Chromatography ◽  
Exchange Chromatography ◽  
Chromatography Mass Spectrometry

Determination and Speciation of Arsenic in Human Urine by Ion-Exchange Chromatography/Flow Injection Analysis with Hydride Generation/Atomic Absorption Spectroscopy

1994 ◽  
Vol 77 (2) ◽  
pp. 441-445 ◽  
Author(s):  
O Jimenez de Blas ◽  
S Vicente Gonzalez ◽  
R Seisdedos Rodriguez ◽  
J Hernandez Mendez
Keyword(s):  
Ion Exchange ◽  
Atomic Absorption ◽  
Flow Injection ◽  
Hydride Generation ◽  
Inorganic Arsenic ◽  
Ion Exchange Chromatography ◽  
Exchange Chromatography ◽  
Urine Samples ◽  
Dimethylarsinic Acid ◽  
Total Arsenic

Abstract A flow injection–hydride generation/atomic absorption spectroscopic method for the measurement of total urinary arsenic and for the selective determination of inorganic arsenic, monomethylarsonic acid (MMAA), and dimethylarsinic acid (DMAA) was developed. Destruction of the organic matrix is necessary to measure total arsenic content of urine samples. Digestion of this matrix with HNO3–H2SO4–H2O2 is described. The separation of inorganic, monomethylated, and dimethylated arsenic compounds in urine was performed with ion-exchange chromatography on AG 50 W-X8 resin. Detection limits of 2 ppb for each arsenic form and of 3 ppb for total arsenic in urine analyzed after mineralization were found. Recoveries in triplicate urine samples spiked with 10 ppb inorganic arsenic, 20 ppb MMAA, and 40 ppb DMAA were 93, 91, and 85%, respectively. The precision (relative standard deviation) of the method obtained in 10 replicate analyses of urine samples spiked with arsenic metabolites varied from 3.2 to 4.6%. This method is applicable to urine samples in studies relating to arsenic exposure and its monitoring.

Particle beam glow discharge mass spectrometry: spectral characteristics of nucleobases

2003 ◽  
Vol 17 (15) ◽  
pp. 1749-1758 ◽  
Author(s):  
W. Clay Davis ◽  
Jacob L. Venzie ◽  
Bert Willis ◽  
R. Lane Coffee ◽  
Dev P. Arya ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Glow Discharge ◽  
Spectral Characteristics ◽  
Particle Beam ◽  
Glow Discharge Mass Spectrometry ◽  
Particle Beam Glow Discharge
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