摘要
取磨碎的软木塞样品0.500 0g,用水超声提取30min,取提取液9mL置于萃取瓶中,加入1.8g Na2SO4,于55℃进行固相微萃取35min后,于气相色谱仪进样口解吸7min,采用气相色谱-质谱法测定其中愈创木酚的含量。结果表明:愈创木酚在25.00～2 000μg·L-1内与其峰面积呈线性关系,检出限(3S/N)为0.022μg·L-1,按标准加入法进行回收试验,回收率为69.8%～115%,测定值的相对标准偏差(n=6)为6.3%～13%。
The mashed cork sample （0.500 0 g） was extracted ultrasonically with water for 30 min, and 9 mL of the extract was taken and 1.8 g of Na2 SO4 were added into the extraction bottle. After solid-phase microextraction at 55 ℃ for 35 min, the solution was desorbted for 7 rain at the injection port of the gas chromatography, and guaiacol was determined by GC-MS. As shown by the results, linear relationship between values of peak area and mass concentration of guaiacol was found in the range of 25.00-2 000 μg · L^-1, with detection limit （3S/N） of 0.022 μg · L^-1. Test for recovery was made by standard addition method, giving results in the range of 69.8%- 115%, and RSDs （n=6） ranged from 6.3% to 13%.
作者
白淼
张灿
甘雨然
张明露
安代志
王强
孙如宝
BAI Miao;ZHANG Can;GAN Yuran;ZHANG Minglu;AN Daizhi;WANG Qiang;SUN Rubao(Institute for Disease Prevention and Control of Chinese PLA,Beijing 100071,China;Department of Environmental Science and Engineering,Beijing Technology and Business University,Beijing 100048,China)
出处
《理化检验（化学分册）》
CAS
CSCD
北大核心
2018年第10期1194-1197,共4页
Physical Testing and Chemical Analysis(Part B:Chemical Analysis)
