Thinking of this, Li Fei was even more determined in his thoughts, so he took the bowl of water that Zhao Xian firmly thought was problematic and returned to the room, ready to go to Su Xue to find out the situation.

Since Su Xue studied chemistry in college, she was famous in that area for her strong chemistry ability when she was in high school.

However, these are all some inside stories that were only known after Li Fei and Su Xue "got to know better". ap.

When they came to the room, Su Xue and Zhang Ting happened to be chatting together, so Li Fei told him what he wanted.

"Cher, with our current conditions, can you identify whether there are other substances or chemical components in this water?" Li Fei asked.

Su Xue frowned, then thought for a moment, and gave a fairly pertinent answer.

"I can try, but I'm not sure if I can succeed, because after all, there are not enough chemical reagents and experimental materials on the island."

"Just do your best." Li Fei nodded, he just had the mentality of giving it a try, and he didn't have much hope that Su Xue would be able to test it.

It's just that since it is possible to measure it, Li Fei will not give up.

The girl nodded lightly, began to prepare the materials, and became vigorous and resolute, and even began to call Li Fei.

But the latter didn't take it to heart, and went off with a promise.

The materials were ready, and in front of Su Xue, Li Fei blinked, these are not some of the most ordinary objects on the island.

There is pig iron, salt, and even leaves.

But Su Xue just smiled confidently, and five minutes later, I don't know how she tinkered, she actually made a bottle of chemical potion.

"Does the captain know what this is?" Zhang Ting was a little stunned, she basically didn't understand any of Su Xue's operations just now.

However, Li Fei only shook his head neatly, then scratched his head and said with a little embarrassment.

"I studied chemistry in high school, and these things are obviously beyond my knowledge."

Su Xue glanced at them, the corners of her mouth rose slightly, when it came to the professional field, she was still relatively confident.

"You don't know, this thing is called pH tester, which can be used to identify water quality."

She concisely told Li Fei about the effect of this liquid, the two nodded, and Su Xue continued the experiment with satisfaction.

I saw that she slowly poured the water that Li Fei handed her into the liquid, and waited for a minute, the liquid changed color slightly.

Although Li Fei stared intently, it was obvious that he didn't see any other clues except that the color of the liquid had become a little lighter.

However, Su Xue only thought about it for a while and gave an affirmative answer.

"There's a problem with the water."

"Huh?" Li Fei and the others were a little surprised, and looked at Su Xue for some reason.

"The pH value is the pH level that exceeds the standard, and ordinary fresh water, even if it is rainwater, and the storage environment is not good, it will not reach this level."

"It must have been artificially added with other liquids or powders."

After listening to Su Xue's explanation, Li Fei's previous conjecture was basically confirmed, and he called everyone and told them the whole story.

"Cher basically can't go wrong with chemistry, she says there's a problem, 100% of the problem!" Lan Xin'er stood up to help her best friend speak.