技术
gas chromatography (GC): suitable
solid phase microextraction (SPME): suitable
试验参数
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
适用性
application for SPME
应用
food and beverages
分析说明
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.
法律信息
VOCOL is a registered trademark of Merck KGaA, Darmstadt, Germany
分析物
说明
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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