将试样溶解在水中，并用盐酸酸化。通过加热溶液来消除二氧化碳。铅与二甲苯中的二乙基二硫代氨基甲酸二乙酯铵溶液络合并萃取。溶液被吸入乙炔空气火焰中。测量由铅空心阴极灯发射的217 nm线或283.3 nm线的吸收。该方法适用于含铅量超过0.1 mg/kg的产品。

A test portion is dissolved in water and acidified with hydrochloric acid. The carbon dioxide is eliminated by heating the solution. The lead is complexed and extracted with a solution of diethylammonium diethyldithiocarbamate in xylene. The solution is aspirated into an acetylene-air flame. The absorption of the 217 nm line or, alternatively, of the 283.3 nm line emitted by a lead hollow-cathode lamp is measured. The method is applicable to products containing more than 0.1 mg/kg of lead.