Method 72


This method describes the sample collection and analysis of furfural. Air samples are collected by drawing known volumes of air through sampling tubes containing petroleum-based charcoal. Each sampling tube contains a 100-mg sampling section and a 50-mg backup section. The samples are desorbed with carbon disulfide containing 1% dimethylformamide. Magnesium sulfate is added to remove any collected water. The desorbed samples are analyzed by gas chromatography using a flame ionization detector.



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Method Data

Hold Times, Preservatives, Preps, Collection, Analytical & Documentation
Holding Time:   At least 18 days.
Preservatives:   Store at room temperature or keep refrigerated.
Required Preps:   Solid sorbent sampling tubes containing petroleum based charcoal. Each tube consists of two sections of charcoal separated by a urethane foam plug. The front section contains 100 mg of charcoal and the back section, 50 mg; 7cm x 6mm OD x 4mm ID.
Collection Method:   Solid sorbent sampling tubes; 180L @ 1L/min.
Analytical Methodology:   GC/FID.
Documentation:   072

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.