Method 2015

Chloroacetaldehyde by GC/ECD

This method is for the determination of chloroacetaldehyde. The sample is collected on silica gel sorbent tubes, desorbed in 25 mL 50% aqueous methanol for 30 minutes and analyzed by gas chromatography, with a 63Ni electron capture detector system. The working range is 0.1 to 2 ppm (0.33 to 6.3 mg/m³) for a 3 L air sample. The method is not able to distinguish between chloroacetaldehyde and the monomer or dimer hydrate forms of chloroacetaldehyde. Chloroacetaldehyde in air has also been determined by differential pulse polarography. Note: This is Method S11 in a revised format.

(NIOSH Issue 1: 15 August 1994)


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Method Data

Hold Times, Preservatives, Preps, Collection, Analytical & Documentation
Holding Time:   At least 7 days from sampling to analysis if kept at 25°C
Preservatives:   Store at room temperature (25°C).
Required Preps:   Solid sorbent tube: silica gel, 520 mg/260 mg, 7cm x 6mm OD x 4mm ID
Collection Method:   Sorbent tube: 0.3 - 16 L @ 0.05 - 0.2 L/min.
Analytical Methodology:   GC/ECD
Documentation:   2015

Analyte List*

Analyte Formula CAS Number Detection Limit

* The analytes and detection limits listed for each method represent the typical detection limits and analytes reported for that particular method. Keep in mind that analyte lists may vary from laboratory to laboratory. Detection limits may also vary from lab to lab and are dependent upon the sample size, matrix, and any interferences that may be present in the sample.