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 X 10(-8) g . mL(-1) to 1.0 X 10(-6) g . mL(-1). The detection limit of the proposed method is 6 X 10(-9) g . mL(-1) and the RSD is 1.6% (n=11) at 2 X 10(-7) g . mL(-1). This result is satisfactory compared with the method mentioned in the pharmacopoeia of People's Republic of China.