Development and application of a thermal desorption method for the analysis of polar volatile organic compounds in workplace air.

Development and application of a thermal desorption method for the analysis of polar volatile organic compounds in workplace air.

Journal of chromatography. A (1998-07-25)

R A Hallama, E Rosenberg, M Grasserbauer

ABSTRACT

The application of a newly developed thermal desorption method for the analysis of workplace air to the analysis of polar compounds is reported. The method was validated for both pumped and diffusive sampling of test gases containing polar volatile organic compounds (esters, alcohols, ketones or aldehydes) on adsorption tubes and subsequent analysis of these tubes. Carbosieve SIII, Carboxen 569, Carbopack B and Tenax TA were used as solid adsorbents. Analysis was performed by thermal desorption of the analytes from the adsorbent tubes followed by gas chromatography-flame ionisation detection (GC-FID). It could be demonstrated that thermal desorption-GC-FID is feasible also for the analysis of polar compounds and that problems arising from the high concentration levels of some analytes in workplace air could be solved.

MATERIALS

Product Number

Brand

Product Description

29534-U

Supelco

Carboxen^® 569, glass TD tube, fritted, O.D. × L 1/4 in. × 3 1/2 in., preconditioned, pkg of 10 ea

20355

Supelco

ORBO^™ 78 HBr on Carboxen^® 564 specially cleaned (20/45), 400/200 mg, W,W,W separators, O.D. × L 6 mm × 110 mm, pkg of 25 ea

10184

Supelco

Carbosieve Adsorbent, matrix Carbosieve S-III, 60-80 mesh, bottle of 10 g

10189

Supelco

Carbosieve Adsorbent, matrix Carbosieve S-II, 60-80 mesh, bottle of 10 g

10198

Supelco

Carbosieve Adsorbent, matrix Carbosieve G, 60-80 mesh, bottle of 5 g

10190-U

Supelco

Carbosieve Adsorbent, matrix Carbosieve S-II, 80-100 mesh, bottle of 10 g

10199

Supelco

Carbosieve Adsorbent, matrix Carbosieve G, 80-100 mesh, bottle of 5 g

20273

Supelco

Carbopack^™ Adsorbent, matrix Carbopack^™ B, 60-80 mesh, bottle of 10 g

28274-U

Supelco

Carbosieve SIII, stainless steel TD tube, O.D. × I.D. × L 6 mm × 4 mm × 7 in., preconditioned, pkg of 1 ea

20358

Supelco

ORBO^™ 90 Carboxen^® 564 (20/45), 160/80 mg, W,F,F separators, O.D. × L 6 mm × 75 mm, pkg of 25 ea, for analyte group MEK (methylethyl ketone)

28718-U

Supelco

Tenax^® TA / Carboxen^® 1018, glass TD tube, preconditioned, O.D. × L 1/4 in. × 3 1/2 in., Sealed with (Swagelok^® End-Fittings), pkg of 10 ea

29537-U

Supelco

Carbopack^™ X, glass TD tube, fritted, O.D. × L 1/4 in. × 3 1/2 in., preconditioned, pkg of 10 ea

30136-U

Supelco

Carbopack^™ B, glass TD tube, fritted, O.D. × L 1/4 in. × 3 1/2 in., unconditioned, pkg of 10 ea, matrix Carbopack^™

11324-U

Supelco

Carboxen^® Adsorbent, matrix Carboxen^® 564, 20-45 mesh, pack of 144 × 290 mg

10437-U

Supelco

Carbopack^™ Adsorbent, matrix Carbopack^™ X, 60-80 mesh, bottle of 10 g

10477-U

Supelco

Carboxen^® Adsorbent, matrix Carboxen^® 1000, 40-60 mesh, bottle of 50 g

10258

Supelco

Carbopack^™ Adsorbent, matrix Carbopack^™ C, 80-100 mesh, bottle of 10 g

24241-U

Supelco

Carboxen^®-1006 PLOT Capillary GC Column, L × I.D. 30 m × 0.32 mm, average thickness 15 μm

25461

Supelco

Carboxen^®-1006 PLOT Capillary GC Column, L × I.D. 30 m × 0.53 mm, average thickness 30 μm

10439-U

Supelco

Carbopack^™ Adsorbent, matrix Carbopack^™ X, 120-400 mesh, bottle of 50 g

10436

Supelco

Carbopack^™ Adsorbent, matrix Carbopack^™ X, 40-60 mesh, bottle of 10 g

25467

Supelco

Carboxen^®-1010 PLOT Capillary GC Column, L × I.D. 30 m × 0.53 mm, average thickness 30 μm

10269

Supelco

Carboxen^® Adsorbent, matrix Carboxen^® 569, 20-45 mesh, bottle of 10 g

10257

Supelco

Carbopack^™ Adsorbent, matrix Carbopack^™ C, 60-80 mesh, bottle of 10 g

24246

Supelco

Carboxen^®-1010 PLOT Capillary GC Column, L × I.D. 30 m × 0.32 mm, average thickness 15 μm

10478-U

Supelco

Carboxen^® Adsorbent, matrix Carboxen^® 1000, 60-80 mesh, bottle of 10 g

10471

Supelco

Carboxen^® Adsorbent, matrix Carboxen^® 1003, 40-60 mesh, bottle of 10 g

11048-U

Supelco

Carboxen^® Adsorbent, matrix Carboxen^® 569, 20-45 mesh, bottle of 500 g

54041-U

Supelco

Carboxen^® 1000 Reversible SPE Tube, 200 mg/mL, pk 30

11072-U

Supelco

Carboxen^® Adsorbent, matrix Carboxen^® 572, 20-45 mesh, bottle of 10 g