%0 Journal Article
%T Determination of Dihydroxybenzenes Using High Performance Liquid Chromatography with Acidic Potassium Permanganate Chemiluminescence<br>高效液相色谱-高锰酸钾氧化化学发光法测定水中的痕量苯二酚
%A FAN Shunli
%A ZHANG Like
%A WEI Yanlin
%A LIN Jin-Ming
%A <br>范顺利
%A 张立科
%A 魏彦林
%A 林金明
%J 色谱
%D 2006
%I 
%X A sensitive, selective and simple post-column chemiluminescence (CL) detection method for simultaneously determining catechol, resorcinol, hydroquinone has been developed based on high performance liquid chromatography (HPLC) coupled with CL detection using reaction of dihydroxybenzenes with acidified potassium permanganate solution with the enhancing effect of formic acid. The optimal conditions for the CL detection and HPLC separation were achieved. Dihydroxybenzene isomers were baseline separated at column temperature of 25 degrees C using a mobile phase of methanol-0.1 mmol/L beta-cyclodextrin aqueous solution (30/70, v/v) with an isocratic elution program and the mobile phase matched well the CL detection. For all compounds, the linear ranges of the CL detection were about two orders of magnitude. The detection limits were 3.2 microg/L for hydroquinone, 4.7 microg/L for resorcinol and 5.2 microg/L for catechol. Combining with solid phase extraction, the proposed method was successfully applied to the determination of dihydroxybenzenes in river water. The recoveries for the three dihydroxybenzenes were 92.1%-95.4%.
%K high performance liquid chromatography(HPLC)
%K chemiluminescence(CL) detection
%K potassium permanganate
%K solid phase extraction(SPE)
%K dihydroxybenzenes<br>高效液相色谱
%K 化学发光检测
%K 高锰酸钾
%K 固相萃取
%K 苯二酚
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=6579068328FE643F&jid=4D81E042D77AFEC6881D14759692069C&aid=D928A8E054E2F0B8&yid=37904DC365DD7266&vid=B91E8C6D6FE990DB&iid=0B39A22176CE99FB&sid=856C2E13D1000DB7&eid=70AC2EF7F2065E09&journal_id=1000-8713&journal_name=色谱&referenced_num=5&reference_num=15