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Merck

GC Analysis of Volatiles in White Wine on VOCOL® after SPME using a 75 μm Carboxen/PDMS Fiber

GC Analysis of Volatiles in White Wine on VOCOL® after SPME using a 75 μm Carboxen/PDMS Fiber suitable for GC, application for SPME

材料

分析柱

产品编号
说明
价格

VOCOL® 毛细管GC色谱柱

L × I.D. 30 m × 0.25 mm, df 1.50 μm

固相微萃取纖維

产品编号
说明
价格

SPME固相微萃取萃取头 Carboxen/聚二甲基硅氧烷 (CAR/PDMS)

df 75 μm(CAR/PDMS, for use with manual holder, needle size 24 ga

標準

产品编号
说明
价格

乙酸己酯

analytical standard

辛酸

analytical standard

丁酸乙酯

analytical standard

异戊醇

≥98%, FG

2-甲基-1-丁醇

≥99%

二氧化硫

≥99.9%

正己酸乙酯

analytical standard

辛酸乙酯

analytical standard

2,3-丁二醇

analytical standard, mixture of racemic and meso forms

流動相成分

产品编号
说明
价格

甲酸甲酯

analytical standard

相關產品

产品编号
说明
价格

SPME 光纤支架

for use with manual sampling

SPME 光纤支架

for use with CTC CombiPAL and Gerstel MPS2

CONDITIONS

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

说明

分析報告

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.

法律資訊

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