基于绿色考虑的碱金属氢氧化物浓度的测定
胡新, 尹富玲, 杨军, 赵明

Determination of Alkali Hydroxide Concentration Based on Green Consideration
Xin Hu, Fuling Yin, Jun Yang, Ming Zhao
Fig 5 Spathiphyllum kochii irrigated with titration solutions produced by three different titration methods, and distilled water, respectively.
The pictures were taken with a digital camera.