摘要
建立了溴化衍生-液液萃取-气相色谱法,以检测水中的丙烯酰胺。通过对衍生化有影响的硫酸加入量、反应时间、溴的来源等进行优化,发现在硫酸的加入量为5.0mL、反应时间为30min时可达到良好的效果,方法的最低检出限为0.02μg/L,回收率为98%~100%,精密度不高于9.9%。该方法灵敏度高、重现性好、定量准确,适用于水中丙烯酰胺的测定。
In order to detect acrylamide in water,a method for the extraction of bromide by liquid-liquid extraction and gas chromatography is established.The addition of sulfuric acid,reaction time and the source of bromine which may influence the extraction of bromide are optimized.It is found that when the addition amount of sulfuric acid is 5.0mL and the reaction time is 30 min,the effect is better.The limit of detection is 0.02μg/L,the average recovery is 98% -100%,and the relative standard deviations of acrylamide is less than 9.9%.The method is sensitive,repeatable and accurate for acrylamide determination in water samples.
出处
《河北工业科技》
CAS
2017年第1期71-74,共4页
Hebei Journal of Industrial Science and Technology
基金
河北省科技计划重点项目(15273604D)
关键词
水体环境学
丙烯酰胺
衍生化
气相色谱法
水
water environment science
acrylamide
derivatization
gas chromatography
water
