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

C. Garthe; R. Ballik; C. Hornreich; W. Thiel

doi:10.4271/2003-01-0387

2003-03-03

HC Measurements by Means of Flame Ionization: Background and Limits of Low Emission Measurement 2003-01-0387

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.

SAE MOBILUS

Subscribers can view annotate, and download all of SAE's content. Learn More »

Access SAE MOBILUS »

Digital $37.00 Print $37.00

Preview Document

We also recommend:

Standards

SAE Mobilus®

Publications

News

Events

Professional Development

A World in Motion (PreK-12)

Participate with SAE

SAE Membership

Donate

HC Measurements by Means of Flame Ionization: Background and Limits of Low Emission Measurement 2003-01-0387

SAE MOBILUS