The detection limit is 1.5 10-9mol/L. 2 The electrogenerated chemiluminescence (ECL) behavior of oleanlic acid(OA) in neutral solution was studied.

• 0又10‘4m。1/L的范围内呈现良好的线性关系，检出限可以达到1.；5又10一”mol/L。2齐敦果酸的ECL行为