Carry-over Effect Performance for TNTS Analysis with NEXIS VP
The oxidative combustion analysis of a wide range of petroleum samples which may contain high sulfur and/or nitrogen content may result into potential carry-over effect issues that can result in downtime for this analysis. The EST NEXIS VP model with AS120 liquid autosampler uses a direct injection technique combined with a high efficiency combustion tube design to avoid the risk of incomplete combustion and therefore demonstrates a very low carry-over effect. This application note describes the practical lab study for the “carry-over effect” and the degree to which the NEXIS VP TN/TS elemental combustion analyzer manages 1) the “carry-over” effects which is based on a reference definition. Extreme high sulfur/nitrogen concentrations of 10,000 ppm as well as middle high ppm concentrations 100 ppm of nitrogen and sulfur samples were analyzed multiple times and multiple sets followed by a set of blank solvent injections to determine the “carry-over” effects.
TSHR has been helping labs achieve their elemental analysis goals with dedicated solutions. Our vision is to develop innovative reliable combustion analyzers that enable customers to make their work productive and more easier.
To help labs excel we offer Application Notes across the Combustion Analyzer product line. They are a resource that explains the technology, performance, and abilities of our products as used against certain methodologies and or applications.
Whether your needs center around an ASTM Standard or EN/ISO methods, or a sample matrix-based outcome TSHR has you covered. If you don’t see the technical direction you need, simply contact us. We also offer sample analysis in our onsite Applications Lab.