超声
Methods:Ultrasonication with methanol was used for sample preparation, and quantitative determination of analytes was performed by GC - MS. GC conditions; HP-5MS capillary column (30 m×0.25 mm×0.25μm) ,flow rate was 1 mL·min-1,column temperature program:100℃(2min) injector temperature: 250℃,Gas; He (99.999% ).
方法:采用甲醇超声提取,GC-MS选择离子监测法测定3种成分含量。 色谱条件:HP-5MS毛细管柱(30 m×0.25 mm×0.25μm);柱流速为1 mL·min-1,柱温:100℃(2 汽化室温度250℃;载气为高纯He(99.999%)。