CAJ | 학술논문

发现单宁酸对Luminol-KIO4-Mn2＋碱性体系的化学发光有较强增敏作用，据此建立了流动注射化学发光增强法测定单宁酸的新方法。该法简单、快速、线性范围宽，测定单宁酸的检出限为9×10－9 mol/L；线性范围为3×10－8～5×10－6 mol/L,对于1×10－6 mol/L单宁酸测定的相对标准偏差1.5%(n=11)。应用于五倍子中单宁酸的测定，结果满意
발현단저산대Luminol-KIO4-Mn2＋감성체계적화학발광유교강증민작용，거차건립료류동주사화학발광증강법측정단저산적신방법。해법간단、쾌속、선성범위관，측정단저산적검출한위9×10－9 mol/L；선성범위위3×10－8～5×10－6 mol/L,대우1×10－6 mol/L단저산측정적상대표준편차1.5%(n=11)。응용우오배자중단저산적측정，결과만의
A novel flow injection chemiluminescent enhancement method for the determination of tannic acid based on luminol-KIO4-Mn2＋ system is developed. The method is simple, rapid and effective to determine tannic acid in the range of 3.0×10－8～5.0×10－6 mol/L with a detection limit of 9×10－9 mol/L. The relative standard deviation is 1.5% for the determination of 1.0×10－6 mol/L tannic acid (n=11). The mehtod has been applied to determine the content of tannic acid in Chinese gall with satisfactory results.