[Flow-injection chemiluminescence determination of procaterol hydrochloride].

A new flow injection chemiluminescences method for the determination of procaterol hydrochloride has been developed.It is based on the chemiluminescence reaction of procaterol hydrochloride with Ce(Ⅳ)-rhodamine B in sulphuric-chlorhydric acid medium and the experimental fact of the enhancement of chemiluminescence by surfactant CTMAB.The concentration of the analyte shows a good linear relationship with the produced luminescence intensity in the range of 2.0×10-8g·mL-1 to 1.0×10-6g·mL-1.The detection limit of the proposed method is 6×10-9g·mL-1 and the RSD is 1.6%(n=11) at 2×10-7g·mL-1.This result is satisfactory compared with the method mentioned in the pharmacopoeia of People's Republic of China.