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Determination of Acetaldehyde in Exhaust Gas of Fixed Pollution Source Glass Column
Glass column for the determination of acetaldehyde in exhaust gas from a fixed pollution source Details:

Name: Filled glass column
Specification: 2m*3mm (inner diameter)
Model: 20%PEG-20M/GCS880 AW DMCS (80-100 mesh)
Application: HJ/T 35-1999 Determination of Acetaldehyde in Exhaust Gas of Stationary Pollution Source Gas Chromatography

1 Scope of application

1.1 This standard is applicable to the determination of acetaldehyde from organized and unorganized emissions from stationary sources.

1.2 When the sampling volume is 100L and the injection volume is 1μL, the detection limit of acetaldehyde is 4×10-2mg/m3, and the quantitative measurement concentration range of acetaldehyde is 0.14mg/m3-30mg/m3.

2 Principle of the method

Sampling with sodium bisulfite solution, acetaldehyde and sodium bisulfite undergo a nucleophilic addition reaction to form a stable a-hydroxysulfonate in a neutral solution, and then co-thermally release acetaldehyde in a dilute alkali solution. The chromatographic column is separated and measured with a hydrogen flame ionization detector, qualitatively based on the retention time of the chromatographic peak of the standard sample, and the peak height is quantified.

       
3 Reference standards

      The provisions contained in the following standards constitute the provisions of this standard through quotation in this standard.

      GB 16297-1996 Comprehensive Emission Standard of Air Pollutants

      GB 161157-1996 Determination of particulate matter in exhaust gas from stationary sources and sampling method for gaseous pollutants

Determination of Acetaldehyde in Exhaust from Fixed Pollution Source Glass Column Test Spectra: