Zinc in drinking natural mineral water was preconcentated with an ion exchange flow injection system under acidic condition and determined by flame atomic absorption spectrometry.

• 用流动注射离子交换系统在酸性条件下在线富集饮用天然矿泉水中的锌；并用火焰原子吸收光度法进行测定；在120h~（-1）的进样频率下；灵敏度可提高8.；5倍。