A Continuous Flow System for Sensitive Urushiol Detection Using a New Chemiluminescent Reaction

By using new chemiluminescent (CL) reaction system consisting of an urushiol / hydrogen peroxide / sodium hydroxide / dye-sensitizer,a sensitive urushiol detection system was developed whchi featured a continuous flow method.The system comprises three-channel flow manifolds including an introduction manifold for the urushiol sample.The system has some advantages sa regards instrumenation,sensitivity and analytical time;the detection limit is 1.0×10 -5M(S/N=2);the analytical time required is less than 30s for one sample feeding;the relative standard deviation is 6.2% for 5 repeated runs of the 1.0×10 -4M urushiol solution.A possible explanation for the CL reaction mechanism is also presented.