流动注射化学发光测定间苯三酚

基于在甲醛存在条件下，高锰酸钾在酸性介质中氧化间苯三酚而直接产生化学发光，结合流动注射技术建立了测定间苯三酚的化学发光分析方法，该法测定间苯三酚的线性范围为5.0×10-9～5.0×10-5 mol·L-1，检出限为3.0×10-9 mol·L-1，相对标准偏差为2.5%(1.0×10-6 mol·L-1间苯三酚，n=11)。该法应用于测定在几种实际水样中加入的间苯三酚，回收率令人满意。

Determination of Phloroglucinol by a New Flow Injection Chemiluminescence Method

Chemiluminescence reaction of phloroglucinol with potassium permanganate in the presence of formaldehyde as an enhancer was investigated. A new chemiluminescence method for the determination of phloroglucinol with flow injection technique was developed. The linear range for phloroglucinol is 5.0 x 10(-9)-5.0 x 10(-5) mol x L(-1) with a detection limit of 3.0 x 10(-9) mol x L(-1). The relative standard deviation is 2.5% for 1.0 x 10(-6) mol x L(-1) phloroglucinol in 11 repeated measurements. The method has been used to determine the content of phloroglucinol in simulated water with satisfactory results.