摘要
基于新合成的噻唑类希夫碱．N-（2-四氢苯并噻唑）－2-羟基苯甲亚胺对Ce4＋与SO32-反应产生的微弱化学发光的增敏作用，建立了流动注射化学发光测定噻唑类希夫碱的方法。该法线性范围为8．0×10－5～2．0×10－7mol/L；检出限为5．0×10－8mol/L；对2．0×10－7mol/L噻唑类希夫碱7次平行测定相对标准偏差为2．2％。
A rapid, acctuate, precise, smple and folly automated flow-injechon methed is described for the determination of a new synthesized Schiff base N - tetrahydrobenzothiazolyl imine. The method is based on the sensitizing effect of Schiff base on the chemiluminescence (CL) reaction of cerium(Ⅳ) with sulfite.The relationship between the CL intensity and the concentration of Schiff base is linear in the rangr of 2 .0× 10-7～ 8 .0×10-5 mol/L, and the detection limit is 5 .0×10-8 mol/L. The relative standard deviation (RSD) for 7 repeated determinations of 2 .0×10-7 mol/L Schiff base is 2. 2%. The meovery resuts for the detection of Schiff base in synthesized sample was satisfactory.
出处
《分析化学》
SCIE
EI
CAS
CSCD
北大核心
2000年第3期357-360,共4页
Chinese Journal of Analytical Chemistry
基金
国家自然科学基金
中国博士后科学基金
关键词
化学发光
铈
噻唑类希夫碱
流动注射分析
Flow injection analysis, chemiluminescence, cerium (Ⅲ), sulfite, N-tetrahydrobenzothiazolyl imine Schiff base
