The experimental results showed that using the studied method, Pd could be determined in the leaves of Japanese pagoda, annual grass, holly and tine tree collected along main roads in Beijing (China) during 2005 with satisfactory.

• 应用所建方法测定北京市市区主要公路道路两旁四种常见植物草坪草,国槐,小叶冬青和松树中钯的含量。