搜索结果: 1-6 共查到“有机化学 GC-MS”相关记录6条 . 查询时间(0.093 秒)
毛细管柱GC/MS/ESR 联用研究自由基PBN加合物。
采用顶空-气相色谱-四极质谱法和顶空-气相色谱-飞行时间质谱法对薄荷挥发性成分进行了检测, 分别从薄荷茎和叶中鉴定出39种和64种挥发性组分, 其中以酮类和萜烯类化合物为主. 本定性分析策略在复杂样品挥发性成分的定性分析中具有良好的应用前景.
摘要 用甲醇提取血样中的苯丙氨酸(Phe)、酪氨酸(Tyr)，提取液离心去蛋白质，用正丁醇将其中的苯丙氨酸和酪氨酸丁酯比，再用三氟醋酸酐酰化后进行GC-MS分析，测定Phe，Tyr特征离子峰面积，用外标法计算出Phe和Tyr的摩尔浓度，根据Phe和Tyr摩尔浓度比值来诊断新生儿苯丙酮尿症(PKU)。
摘要 本文研究了1-芳基-5-苯并三唑基-1-戊烯(3和3')的两种通用合成方法, 并用色谱-质谱联用仪分析了四种不同异构体的组成。根据其MS谱图中[M-29]^+^·及[M-57]^+^·峰的强度, 可以方便地区分1-N和2-N烷基化产物。
GC-MS Analysis and Antibacterial Activity of Cultivated Satureja cuneifolia Ten. Essential Oil
Satureja cuneifolia Lamiaceae GC Essential oil Antibacterial activity
2010/4/19
The composition of the essential oil of Satureja cuneifolia Ten. cultivated in Konya, Turkey, was investigated by capillary GC-MS. The compounds were characterized by comparison with library searches....
Synthesis of 2-[2-(3,4,5-Trimethoxybenzoyloxy)ethyl]pyrrolidine Hydrochloride Controlled by GC-MS, 1H and 13C NMR Analyses
2-[2-(3,4,5-trimethoxybenzoyloxy)ethyl]pyrrolidine hydrochloride pyrrolidine derivatives O-acylation of amino alcohols removal of Cbz group
2010/4/19
The synthesis of 2-[2-(3,4,5-trimethoxybenzoyloxy)ethyl]pyrrolidine hydrochloride was performed using 2-(2-hydroxyethyl)pyrrolidine as a starting material. Before the O-acylation reaction with 3,4,5-t...
