The pollutant removal effect of ferric coagulant was researched by stirring jar test to remove trace phenol and heavy metal ions of Pb and Cd in Sungari River.
Taking burgeon and stem of Parakmeria omeiensis Cheng as test materials, polyphenol oxidase(PPO), total phenol content, and seasonal change law were studied.
以峨眉拟单性木兰嫩枝茎段为测试材料，研究多酚氧化酶（PPO）活性和总酚含量及其季节变化规律。
3
Tracheal phenol red test was conducted to investigate the effect of phlegm expelling.