摘要
本文提出了一种以十六烷基三甲基溴化铵(CTMAB)为增敏剂的测定痕量抗坏血酸的光度分析方法。吸收波长为664nm,抗坏血酸用量在0—10μg/mL范围内符合朗伯一比尔定律,线性方程为△A=2.006C+0.0082,检出限量为4.2×10^(-9)g/25mL。本法有灵敏度高,抗干扰能力强,操作简便等优点,用于Vc药片中抗坏血酸测定,获得满意结果。
This paper presents a cetyltrimethyl ammonium bromide （CTMAB） sensitizing reagent for the photometric determination of trace ascorbic acid analysis. Absorption wavelength is 664nm, Lambert-- Beer law was obeyed in the concentration range of 0--10μg/mL for ascorbic acid. linear equations is ΔA = 2. 006C＋0. 0082. The detec- tion limit is 4.2 × 10^-9g/25mL. The method has a high sensitivity and anti--jamming capability, a user--friendly advantages. It has been used to the determination of ascorbic acid in the vitamin C tablets with satisfactory results.
出处
《福建分析测试》
CAS
2007年第3期54-57,共4页
Fujian Analysis & Testing
