Journal article
Open-source autosampler for elemental and isotopic analyses of solids
HardwareX, Vol.8, e00123
2020
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Abstract
Elemental and isotopic analyses are performed using elemental analyzers, and are widely employed for diverse scientific fields. An elemental analyzer is typically equipped with an autosampler. Here we present an open-source autosampler for elemental and isotopic analysis of solid samples. The autosampler consists of 1) a sampling table, on which a carousel pushes samples inside an orifice, and 2) a purging pipe, placed directly beneath the orifice, where the sample is purged off surrounding air, and then delivered to the reaction tube. The action of the purging pipe ensured that air contamination, an issue for the analysis of some elements like nitrogen and oxygen, was negligible, and results for elemental and isotopic composition of nitrogen and carbon were inside specs. Compared to commercial alternatives, the autosampler presented here has the advantages of lower cost to build and maintain, universal compatibility with instruments from different manufacturers, capacity do deal with bulky samples, capacity for a larger number of samples in a single run, and no necessity for time-consuming purging in-between sample loading. The autosampler could potentially also be employed for the analyses of other elements (e.g. oxygen, hydrogen and sulfur) because they are performed using similar equipment.
Details
- Title
- Open-source autosampler for elemental and isotopic analyses of solids
- Creators
- Matheus Carvalho de Carvalho (Corresponding Author) - Southern Cross UniversityWilliam Eickhoff - Southern Cross UniversityMichael Drexl - Southern Cross University
- Publication Details
- HardwareX, Vol.8, e00123
- Publisher
- Elsevier
- Identifiers
- 991012876300402368
- Copyright
- © 2020 The Authors.
- Academic Unit
- Faculty of Science and Engineering; Centre for Coastal Biogeochemistry; School of Environment, Science and Engineering; Southern Cross GeoScience; Southern Cross Plant Science
- Language
- English
- Resource Type
- Journal article