V. Vickackaite, Gintarė Pipiraitė, Vilius Poškus, Ingrida Jurkutė, B. Bugelytė
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引用次数: 3
Abstract
Department of Analytical and Environmental Chemistry, Vilnius University, 24 Naugarduko Street, 03225 Vilnius, Lithuania Static headspace gas chromatographic method for determination of hexanal as a marker of lipid oxidation was developed. Tetradecane was suggested as a matrix for hexanal release from the sample. Sample equilibration temperature and time, tetradecane volume, injection time were optimized. Benzaldehyde was selected as an internal standard. Under the optimized conditions quality parameters were determined. The calibration curve was linear in the concentration range from 25 μg l–1 to 2 g l–1, the detection limit was 15 μg l–1, RSD was determined by five replication analysis with hexanal concentration 0.1 g l–1 and was 1.2%. The technique was applied for hexanal determination in potato chips and fried potatoes.
立陶宛维尔纽斯Naugarduko街24号维尔纽斯大学分析与环境化学系，邮编03225。建立了测定己醛作为脂质氧化标志物的静态顶空气相色谱法。十四烷被认为是从样品中释放己醛的基质。对样品平衡温度和时间、十四烷体积、注射时间进行了优化。选择苯甲醛作为内标。在优化的条件下确定了质量参数。在25μg l–1至2 g l–l–1的浓度范围内，校准曲线呈线性，检测限为15μg l-1，用己醛浓度为0.1 g l–-1的五次重复分析法测定RSD，RSD为1.2%。该技术用于薯片和炸土豆中己醛的测定。
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Chemija publishes original research articles and reviews from all branches of modern chemistry, including physical, inorganic, analytical, organic, polymer chemistry, electrochemistry, and multidisciplinary approaches.
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