A method for direct, semi-quantitative analysis of gas phase samples using gas chromatography–inductively coupled plasma-mass spectrometry

Carter, Kimberly E.; Gerdes, Kirk

doi:10.1016/j.sab.2013.03.008

Cited by 2 publications

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References 40 publications

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“…Volatile metal(loid) elements and compounds are present in many different types of gas and liquefied gas samples, such as natural gas or biogas. , Unfortunately, their analysis is still a challenge mainly due to the lack of reliable analytical methods that achieve the required detection limits (ppb-ppt level) and the low availability of gas phase standards . Arsenic is one of the most prevalent elemental impurities in such gaseous and liquefied gaseous samples, being of particular interest in many fields.…”

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“…1,2 Unfortunately, their analysis is still a challenge mainly due to the lack of reliable analytical methods that achieve the required detection limits (ppb-ppt level) and the low availability of gas phase standards. 3 Arsenic is one of the most prevalent elemental impurities in such gaseous and liquefied gaseous samples, being of particular interest in many fields. It is highly toxic and poses significant health and safety risks.…”

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Instrumental Setup for Simultaneous Total and Speciation Analysis of Volatile Arsenic Compounds in Gas and Liquefied Gas Samples

et al. 2017

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Although analysis of metals and metalloids, such as arsenic, is widely spread in many different fields, their analysis in gas and liquefied gas samples is still a challenge. A new GC-ICP-MS set up has been developed for their simultaneous total and speciation analysis in gas and liquefied gas samples without the need of a preconcentration step. An arsine in nitrogen standard was used for optimization and evaluation of the system. Good linearity and detection limits in the very low ppt level for both total and speciation analyses were found. Liquefied butane pressurized under nitrogen and doped with arsine and a propylene real sample from a cracker plant were analyzed using both external calibration and standard additions methods. The good match between both quantifying approaches demonstrated almost negligible matrix effects, even for the total analysis. Application of the approach to check repartition of volatile elements or species between gas and liquid phases was performed in the real propylene sample. Finally, its potential applicability for the simultaneous total and speciation analysis of other elements, such as Hg, was also proved.

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