1·The content of flavonoids in waste liquid of alcohol production from sugarcane molasses was determined by spectrophotometry using rutin as standard substance.
以芦丁为标准物质，用分光光度法测定了甘蔗糖蜜酒精废液中黄酮类化合物的含量。
2·The maximum adsorption of heparin sodium solution was determined by spectrophotometry . The results showed that semi crosslinked chitosan resius have a good adsorption properties for heparin.
本文采用分光光度法测定水中目的物肝素浓度来计算吸附量，结果表明，半交联壳聚糖珠对肝素有较好的吸附效果。
3·Methods High performance liquid chromatography and infrared spectrophotometry were used to determine its quality.
方法采用高效液相色谱法与红外分光光度法分析。
4·Methods: the content of fleroxacin injection was determined by UV spectrophotometry, the expiry term was predicted by initial average rate methods.
方法：紫外分光光度法测定氟罗沙星注射液含量，用初均速法预测其有效期。
5·The principle of spectrophotometry with tetramethyl-benzidine, the drafting of chlorine standard curves, sample tests, and the results and discussions of the method are introduced.
介绍用四甲基联苯胺分光光度法测定水中余氯的原理、氯标准曲线的绘制、样品测试，该方法的结果与讨论。