摘要
本文采用顶空进样方式,DB-624毛细管柱,FID检测器,测定尿素中甲醇残留量。结果在0.4～200μg/mL质量浓度范围内具有良好的线形关系,相关系数大于0.9999,平均回收率为在92.5%～98.6%之间,变异系数小于2%,检测限为0.2μg/mL。
A method for the determination of trace amounts of methanol in urea by headspace gas chromatography with DB-624 column and FID detector had been developed.A good linearity over the range of 0.4～200 ？g/mL was obtained.The linear correlation coefficient was above 0.9999.The average recoveries varied from 92.5% to 98.6%,with the coefficient of variations lower than 2%,and the detection limit was 0.2 μg/mL.
出处
《福建分析测试》
CAS
2011年第6期30-32,共3页
Fujian Analysis & Testing
关键词
顶空气相色谱法
尿素
甲醇
Headspace Gas Chromatography
Urea
Methanol
