摘要
[目的]对啤酒中甲醛残留量{贝0定方法进己行改进，使检测方法具有简单快速的优点，并且在基层单位易于推广。[方法]选用乙酰丙酮比色法直接测定。[结果]最佳取样量2．0ml，平均回收率100．3%，RSD为1．21％～3．14％。[结论]用该方法检测样品显色后室温稳定3h以上，精密度和准确度符合实验要求。
[Objective]To improve the determination method of residual formaldehyde in beer,provide quick, simple,accurate examination method for the grass-roots unit.[Methods]Direct acetylacetone colorimetric method was used. [Results] The best sample volume was 2.0 ml, the average recovery was 100. 3 %, RSD was 1.21%-3.14 %. [Conclusion]The samples can stable in normal room temperature in 3 hours after coloration. The precision and accuracy can meet the experimental requirements.
出处
《预防医学论坛》
2007年第5期447-448,共2页
Preventive Medicine Tribune
关键词
直接测定
乙酰丙酮比色法
啤酒
甲醛
Direct determination
Acetylacetone colorimetric method
Beer
Formaldehyde
