In chapter 2, the gas chromatographic separation condition of several natural and synthetic estrogens was optimized.SPE as a pretreatment method, the estrogens in river water were determined.

• 第二章研究了几种天然与合成雌激素的气相色谱分离,采用固相萃取法处理样品测定了护城河水中雌激素的含量情况。