发酵亚硫酸盐废液中的单糖制酒精的过程中,抑制剂醋酸和糠醛[1]及产物乙醇的测定是发酵研究的重要方面。文献中用气相色谱法测定水溶液中的脂肪酸[2,3]、亚硫酸废液中的糠醛[4]及同时测定发酵液中的脂肪酸和乙醇[5—7]的报道虽然很多,但有的是用溶剂萃取法[2,4],有的是用程序升温法, In the process of fermentation of monosaccharides in sulfite waste liquors, the determination of acetic acid and furfural inhibitors [1] and the product ethanol is an important aspect of fermentation research. In the literature, the determination of fatty acids in aqueous solution by gas chromatography [2,3], furfural in spent liquefied sulfuric acid [4] and the simultaneous determination of fatty acids and ethanol in fermentation broth [5-7] have been reported in many cases. However, Solvent extraction [2, 4], some are using temperature-programmed method,