Acquisition of a Mass Selective Detector

要求财政支持，以获得质量 选择性检测器与现有的气相色谱仪一起使用。 由此产生的气相色谱-质谱联用仪 可用于复杂生物样品的结构测定 植物提取物中的分子。 结构中的应用 测定包括研究复合碳水化合物部分 质膜阿拉伯半乳聚糖蛋白的研究 油体蛋白质的可能的非氨基酸成分。 在检测和定量中的应用包括测量 内源性植物激素在植物暴露于干旱或 低温胁迫和种子萌发过程中。 这些项目 需要敏感和定量化学品的能力 如果没有质量选择性， 检测器

Financial support is requested for acquisition of a mass selective detector to be used with an existing gas chromatograph. The resulting gas chromatograph-mass spectrometer combination would be used in structure determination of complex biological molecules in plant extracts. Applications in structure determination include studies of the complex carbohydrate portion of plasma membrane arabinogalatan-proteins and studies of possible non-amino acid constituents of oil body proteins. Applications in detection and quantitation include measurements of endogenous plant hormones in plants exposed to drought or chilling stress and in seeds during germination. These projects require capabilities of sensitive and quantitative chemical identification that cannot be achieved without a mass selective detector.