X-Ray fluorescent analysis of alkyl lead in air with active carbon

It has been found that gasoline vapor contained alkyl lead can be absorbed on active carbon and amount of lead content quantitatively analysed by X-ray fluorescent method.For briqueting carbon powder, stealic acid was suitable binder, and the employed mixing ratio of carbon and binder was 3:2.The results were quite consistent with calibration curve which was obtained by impregnation method of lead standard solution over the range from 0.1 mg to 0.5 mg Pb/3 g carbon.