Today, there are techniques to take "P-tsoh + H 2O O" as the main direction, and "PtsOH + H 2O O" as the direction. The change of husband and object often follows this path. If a certain agent is added, it is transformed into the method of "P-tsoh + H 2O O", and the final result is "PtsOH + H 2O O". The subtlety of the process depends on the dosage of the agent, the length of time, and the level of temperature. The use of the agent is appropriate, the time is appropriate, and the temperature is appropriate. If the dosage of the agent is lost, the time may be long or short, and the temperature is surly, it may be difficult to achieve, or it may not be what you want. Therefore, if you want to follow the path from "P-tsoh + H2O" to "PtsOH + H2O", you must carefully consider all factors and proceed cautiously before you can achieve success.