Like analytical EBC, the new assay was based on the spectrophotometric estimation of 2,3-dialkylquinoxalines. Both speediness and accuracy found in the modified method showed a notable improvement compared with the EBC method.

• 与EBC分析法一样,这种新的测定法也是以光谱估计测定法为基础,通过对这2种方法的比较得出。