97-0191

Leichtflüchtige Verbindungen in Weisswein

suitable for GC, application for SPME

Eigenschaften

• Methode(n): gas chromatography (GC): suitable; solid phase microextraction (SPME): suitable
• Testparameter: sample/matrix: white wine + 25% NaCl; SPME fiber: Carboxen/PDMS, 75 μm (57318); extraction: 10 min, 40 °C (headspace); desorption process: 3 min at 290 °C; column: VOCOL, 30 m × 0.25 mm I.D., 1.5 μm (24205-U); oven: 40 °C (2 min) to 220 °C at 10 °C/min; inj. temp.: 290 °C; detector: GC-MS, quadrupole, m/z = 31-240; carrier gas: helium, 35 cm/sec; injection: splitless/split, closed 1 min; liner: 0.75 mm liner; sample: white wine
• Eignung: application for SPME
• Anwendung(en): food and beverages

Beschreibung

Hinweis zur Analyse

In this application, SPME was used for the analysis of volatiles in white wine using a headspace method. The presence of aroma compounds in white wine is one of the most important attributes of its final quality. A Carboxen/PDMS fiber was inserted into the headspace of the vial for 10 minutes at 40 °C and analyzed by GC/MS. The thick film of the VOCOL GC column helps focus the volatile analytes.

Rechtliche Hinweise

VOCOL is a registered trademark of Merck KGaA, Darmstadt, Germany

Analyt

Methyl formate
Ethanol
2,3-Butanediol
Isoamyl alcohol
Ethyl acetate
Hexyl acetate
Sulfur dioxide
2-Methyl-1-butanol
Ethyl octanoate
Ethyl butyrate
Ethyl hexanoate
Octanoic acid
Acetic acid
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