HC Measurements by Means of Flame Ionization: Background and Limits of Low Emission Measurement

2003-01-0387

03/03/2003

Event
SAE 2003 World Congress & Exhibition
Authors Abstract
Content
Flame Ionization Detectors (FID) can be used to detect organic hydrocarbons that occur in plastics, lacquers, adhesives, solvents and gasoline. These substances are ionized in the hydrogen flame of the FID. The ionization current that is produced depends on the amount of hydrocarbon in the sample.
With the lowering of emissions limits, measuring instruments, including the FID, have to be able to detect very low values. For SULEV (Super-Ultra Low Emissions Vehicle) measurements the accuracy and also the general applicability of the CVS (Constant Volume Sampling) measuring technique are now questioned. Basic understanding is necessary to ask the right questions.
One important issue is the science behind the measurement principle of the FID. And in this case especially the influence of contamination of the operating gases, cross sensitivity and data processing on the Limit of Detection (LOD).
The studies show that an optimized FID within a modern CVS system is able to detect the emissions of SULEV level with high precision and repeatability.
Meta TagsDetails
DOI
https://doi.org/10.4271/2003-01-0387
Pages
17
Citation
Garthe, C., Ballik, R., Hornreich, C., and Thiel, W., "HC Measurements by Means of Flame Ionization: Background and Limits of Low Emission Measurement," SAE Technical Paper 2003-01-0387, 2003, https://doi.org/10.4271/2003-01-0387.
Additional Details
Publisher
Published
Mar 3, 2003
Product Code
2003-01-0387
Content Type
Technical Paper
Language
English