Speciation analysis of arsenic and selenium compounds in environmental and biological samples by ion chromatography–inductively coupled plasma dynamic reaction cell mass spectrometer

2007 ◽  
Vol 590 (2) ◽  
pp. 239-244 ◽  
Author(s):  
Ruoh-Yun Wang ◽  
Ying-Ling Hsu ◽  
Lan-Fang Chang ◽  
Shiuh-Jen Jiang
Keyword(s):  
Inductively Coupled Plasma ◽  
Cell Mass ◽  
Speciation Analysis ◽  
Dynamic Reaction ◽  
Dynamic Reaction Cell ◽  
Reaction Cell ◽  
Plasma Dynamic ◽  
Selenium Compounds ◽  
Inductively Coupled ◽  
Environmental And Biological Samples

Water-Soluble and Total Sulfur in Particulate Matter Determined by Inductively Coupled Plasma Dynamic Reaction Cell Mass Spectrometry (ICP-DRC-MS)

2006 ◽  
Vol 3 (2) ◽  
pp. 149 ◽  
Author(s):  
Suk Fun Kan ◽  
Peter A. Tanner
Keyword(s):  
Particulate Matter ◽  
Inductively Coupled Plasma ◽  
Cell Mass ◽  
Water Soluble ◽  
Strongly Correlated ◽  
Dynamic Reaction ◽  
Dynamic Reaction Cell ◽  
Reaction Cell ◽  
Plasma Dynamic ◽  
Inductively Coupled

Environmental Context.Sulfate in particulate matter is usually collected by a high-volume air sampler and analysed as a soluble extract by ion chromatography. The use of an inductively coupled plasma mass spectrometer fitted with a dynamic reaction cell enables not only the water-soluble, but also the total sulfate to be determined at the same time as the analyses of metal ions. Results from Hong Kong show that sulfate is strongly correlated with crustal species in particulate matter. Abstract.An instrumental method has been developed for the determination of sulfur in particulate matter using inductively coupled plasma dynamic reaction cell mass spectrometry. The reaction gas O2 was employed to convert S+ into the diatomic species SO+, and analysed at two different mass-to-charge ratios. The limit of detection for the 32S16O+ determination is ~1 ng S m–3. The method has the advantages that not only soluble sulfur (as commonly analysed by ion chromatography) but also total sulfur can be determined on the same instrument as many metal species. The mean values (± standard deviations) for a spring sampling program of particulate matter of diameter less than 10 μm (PM10) in Hong Kong (n = 13) for soluble and total S were 5.2 ± 1.2 μg m–3 and 5.5 ± 1.3 μg m–3 respectively. These values are quite low owing to a predominantly easterly airstream. Sulfur in PM10 is strongly correlated with the crustal species Ca, Al and Mn.

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