摘要
维生素B12生产产生的废水中含有大量可回收的丙酸,对废水中丙酸的测定进行了研究,建立了测定丙酸的三氯甲烷萃取——气相色谱方法,方法的结果表明:检出限为5×10-2mg/L,精密度RSD为1.32%,加标回收率为97.2%—103.3%。
The wastewater of Cyanocobalamin has recoverad propionic acid, the experiment do reaserch on the content of propionie, so the experiment used extraction and Gas chromatography method for determing the wastewater of Cyanoeobalamin, a detectiaon limit of 51.2ug/L of propinnie acid was ablain,and RSD of the method is 1.32%,and recoveries in the rang of 97.2% to 103.3%.
出处
《河北化工》
2006年第1期48-49,共2页
Hebei Chemical Industry
关键词
丙酸
气相色谱
萃取
发酵废水
propionic acid
gas chromatography
fermentation
extrtction
