yán / jiū / rén / yuán / yòng / shēng / wù / fēn / xī / fǎ / jiǎn / cè / shuǐ / yàng / zhōng / de / wū / rǎn / wù研究人员用生物分析法检测水样中的污染物。Researchers used a bioanalytical method to detect pollutants in water samples.