Determination of Diacetyl in Butter and Air Samples by SPME Coupled with GC-MS

被引：8

作者：

Chen, Yong ^{[1
]}

Shirey, Robert E. ^{[1
]}

Sidisky, Leonard M. ^{[1
]}

机构：

[1] Supelco, Bellefonte, PA 16823 USA

来源：

CHROMATOGRAPHIA | 2010年 / 72卷 / 9-10期

关键词：

Gas chromatography-mass spectrometry; Solid phase microextraction; Diacetyl; Isotope dilution; SOLID-PHASE MICROEXTRACTION; GAS-CHROMATOGRAPHY; QUANTIFICATION; AUTOMATION; ACETOIN; MILK;

D O I：

10.1365/s10337-010-1739-y

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

A solid phase microextraction-gas chromatography-mass spectrometry method was developed to determine diacetyl in butter samples. The extraction was performed for 5 min at 37 A degrees C using a polydimethylsiloxane/divinyl benzene fiber. The method had a linear range of 0.024-11.2 ppm with limit of detection of 0.0078 ppm. Air sampling of diacetyl using solid phase microextraction was also developed to estimate diacetyl concentration in air. The extraction was performed by exposure of a polydimethylsiloxane fiber to air for 2 min. This method had linear range of 0.2-22 ppm (v/v) with limit of detection of 0.05 ppm.

引用

页码：999 / 1004

页数：6

共 26 条

[1]

ARCTANDER S, 1994, PERFUME FLAVOR CHEM, V1

[2] SOLID-PHASE MICROEXTRACTION WITH THERMAL-DESORPTION USING FUSED-SILICA OPTICAL FIBERS [J].