摘要
啤酒中的微量甲醛和乙醛经2,4-二硝基苯肼衍生后直接用LC-MS/MS检测,标准曲线定量。给出了LC-MS/MS法的液相操作条件、质谱分析测定参数、仪器最低检测限值、重复性、定量分析曲线等。该方法简单快速,灵敏度高,每个样的分析时间短,分析样品数量大。
Quantity of trace formaldehyde and acetaldehyde in beer could be directly determined by LC-MS/MS based on standard curve after derived by 2,4- DNPH. Some important parameters of the method were provided in this study, including the operation conditions of LC-MS/MS liquid phase, the index of MS analysis, the lowest instrument detection limit value, repeatability and quantitative analysis curve. It is proved that this method was simple, fast and has higher amounts of sample.
出处
《中国酿造》
CAS
北大核心
2008年第6期87-90,共4页
China Brewing
