Analysis of low-volatility organic sulphur compounds in wines by solid-phase microextraction and gas chromatography.

Analysis of low-volatility organic sulphur compounds in wines by solid-phase microextraction and gas chromatography.

Journal of chromatography. A (2000-07-25)

M Mestres, M P Martí, O Busto, J Guasch

ZUSAMMENFASSUNG

A method for analysing low-volatility sulphur compounds using solid-phase microextraction has been developed. The analytes were extracted directly from the liquid sample using fibres coated with different stationary phases. The best extraction efficiency was obtained with Carboxen-polydimethylsiloxane coating. Ionic strength, sample volume, time and temperature of the extraction were optimised and the matrix effect studied. The method enables 15 sulphur compounds in wine to be determined at trace levels with recoveries close to 100% and limits of detection between 0.05 and 5 microg/L. The overall method was successfully applied to the determination of the sulphur compounds studied in several red, white and rosé wines.

MATERIALIEN

Produktnummer

Marke

Produktbeschreibung

57348-U

Supelco

SPME-Faseranordnung Divinylbenzol/Carboxen/Polydimethylsiloxan (DVB/CAR/PDMS), needle size 24 ga, StableFlex

57328-U

Supelco

SPME-Faseranordnung Divinylbenzol/Carboxen/Polydimethylsiloxan (DVB/CAR/PDMS), needle size 24 ga, for use with manual holder

57298-U

Supelco

SPME-Faseranordnung Divinylbenzol/Carboxen/Polydimethylsiloxan (DVB/CAR/PDMS), needle size 23 ga, StableFlex, for use with autosampler

57299-U

Supelco

SPME-Faseranordnung Divinylbenzol/Carboxen/Polydimethylsiloxan (DVB/CAR/PDMS), needle size 23 ga, StableFlex, for use with manual holder or autosampler, fiber L 2 cm

20358

Supelco

ORBO^™ Carboxen-564 Röhrchen, W,F,F separators, O.D. × L 6 mm × 75 mm, pkg of 25 ea, for analyte group MEK (methylethyl ketone)

57329-U

Supelco

SPME-Faseranordnung Divinylbenzol/Carboxen/Polydimethylsiloxan (DVB/CAR/PDMS), needle size 24 ga, StableFlex, for use with autosampler

57318

Supelco

SPME-Faseranordnung Carboxen/Polydimethylsiloxan (CAR/PDMS), d_f 75 μm(CAR/PDMS, for use with manual holder, needle size 24 ga

10478-U

Supelco

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

25467

Supelco

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

20355

Supelco

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

25461

Supelco

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

57295-U

Supelco

SPME-Faseranordnung Carboxen/Polydimethylsiloxan (CAR/PDMS), d_f 85 μm(CAR/PDMS, needle size 23 ga, StableFlex, for use with autosampler

57319

Supelco

SPME-Faseranordnung Carboxen/Polydimethylsiloxan (CAR/PDMS), d_f 75 μm(CAR/PDMS, needle size 24 ga, for use with autosampler

57335-U

Supelco

SPME-Faseranordnung Carboxen/Polydimethylsiloxan (CAR/PDMS), d_f 85 μm(CAR/PDMS, needle size 24 ga, StableFlex, for use with autosampler

24246

Supelco

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

57334-U

Supelco

SPME-Faseranordnung Carboxen/Polydimethylsiloxan (CAR/PDMS), d_f 85 μm(CAR/PDMS, needle size 24 ga, for use with manual holder, StableFlex fiber

57343-U

Supelco

SPME-Faseranordnung Carboxen/Polydimethylsiloxan (CAR/PDMS), d_f 75 μm(CAR/PDMS, needle size 23 ga, for use with autosampler

57344-U

Supelco

SPME-Faseranordnung Carboxen/Polydimethylsiloxan (CAR/PDMS), d_f 75 μm(CAR/PDMS, needle size 23 ga, for use with manual holder

24241-U

Supelco

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

11072-U

Supelco

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

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

54041-U

Supelco

Carboxen^® 1000 Reversibles SPE-Röhrchen, 200 mg/mL, pk 30

57914-U

Supelco

SPME-Faseranordnung Divinylbenzol/Carboxen/Polydimethylsiloxan (DVB/CAR/PDMS), for use with autosampler, needle size 23 ga, metal alloy fiber, fiber L 2 cm

10477-U

Supelco

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

10471

Supelco

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

10269

Supelco

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

23446-U

Supelco

ORBO^™-93 Sorbensröhrchen, ORBO tube I.D. × L 6 mm × 95 mm, Bed A 180 mg, Bed B 90 mg, 60/80 mesh, pkg of 25 ea

57912-U

Supelco

SPME-Faseranordnung Divinylbenzol/Carboxen/Polydimethylsiloxan (DVB/CAR/PDMS), for use with autosampler, needle size 23 ga, metal alloy fiber, fiber L 1 cm

11048-U

Supelco

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

54294-U

Supelco

Carboxen^® 572 for Tobacco Smoke, Adsorbent Bed Wt: 300 mg, cartridge size 3 mL, pkg of 50 ea