摘要
基于在NaOH介质中,铁氰化钾直接氧化焦酚产生化学发光这一现象,建立了一种流动注射化学发光测定焦酚的新方法。该方法测定焦酚的线性范围为0.01~3.8μg·mL^-1,检出限为0.008/Lg·mL^-1,相对标准偏差为2.7%(n=7,c=0.2μg·mL^-1)。
A novel flow injection-chemiluminescence (FI-CL) method for the determination of pyrogallol is described. The method is based on the reaction between pyrogallol and potassium hexacyanoferrate (Ⅲ) in sodium hydroxide. The CL emission allows quantitation of pyrogallol concentration in the range of 0.01-3.8 μg·mL^-1 with a detection limit (30) of 0. 008μg·mL^-1 The relative standard deviation (n = 7) was 2.7% for 0.2 μg·mL^-1 of pyrogallol.
出处
《青岛科技大学学报(自然科学版)》
CAS
2010年第1期6-8,共3页
Journal of Qingdao University of Science and Technology:Natural Science Edition
基金
国家自然科学基金项目(30470886)
陕西省教育厅科研计划项目(05JK218)
关键词
焦酚
铁氰化钾
化学发光
流动注射
pyrogallol
potassium hexacyanoferrate(Ⅲ)
chemiluminescence
flow-injection