"Yes, and by comparing two different water qualities, we can more intuitively reflect the excessive phosphorus content."
Fan Wei nodded towards Yang Li and said, "If it is really a water quality problem, then after such testing, it is There will definitely be something fishy, but judging from my analysis, the water quality is probably not the culprit of excessive phosphorus, so don’t hold out too much hope.”
"Yes or no, how can you know if you don't try it yourself?
Only after it has been truly tested can you safely look for other reasons, isn't it?"
Yang Li seemed to say firmly, "I think it is very possible."
The old patriarch and others looked at Yang Li one after another.
They didn't seem to know where Yang Li's confidence came from.
Of course, not only them, but even Fan Wei also wanted to know why Yang Li was so confident and really believed that the phosphorus content in the water would exceed the standard.
Although he disagreed with Yang Li's statement, Fan Wei decided to conduct this experiment.
He wanted to respect Yang Li, and the experiment was not very difficult anyway.
Anyway, he could try it if he had no clue, so as to make her give up and prove that his analysis was correct.
As soon as he said it was done, when Adoma loaded a bucket of water from the reservoir with difficulty, Fan Wei chose from the two small buckets of different water qualities around him.
He first I chose rice wine brewed from mountain spring water.
I gently put the test paper in my hand into the rice wine, allowing the rice wine and the test paper to fully contact.
Soon, Fan Wei took out the test paper.
As a result, only a very light blue color appeared on the test paper.
He compared it with the phosphorus content table.
Then he turned to everyone and said, "There is no doubt that this rice wine is made of phosphorus."
There is nothing wrong with the mountain spring water, and the phosphorus content does not exceed the standard.
Next, I will test the water in the reservoir.”
When the old patriarch and others heard Fan Wei say there was no problem, they were disappointed, and the only confidence they had mustered up disappeared.
For them, no matter whether the water quality is analyzed well or not, as long as it is a test, they can't help but hold on to a glimmer of hope.
Why?
Because they are eager to find the root cause of excessive phosphorus, because they do not want to solve the problem of poisoning of so many children in the clan until Fan Wei leaves.
Fan Wei's hand slowly put the test paper into the water from the reservoir.
At this time, Adoma didn't even dare to listen and see the results.
She subconsciously and nervously covered her big eyes with her little hands. .
Everyone next to them also looked serious, especially Yang Li.
Her hands were clenched into fists involuntarily, and her beautiful eyes were full of determination.
It only took a moment for the test paper to be put into the bucket.
Fan Wei still looked satisfied after soaking the test paper in the water.
In his opinion, this test paper will definitely be the same as the one soaked in rice wine just now.
The same, at most it will only show a light blue.
"The test paper doesn't seem to have changed much.
Yang Li, your guess is incorrect.
Now I can be sure."
Fan Wei said with a smile, took the test paper out of the water, shook it and said, "You Look, what’s the color of this test paper?”
Just when Fan Wei said this with some pride, the test paper in his hand that was originally light blue suddenly turned bluer and bluer.
It was obviously much bluer than the test paper soaked in rice wine just now.
Suddenly, not only Fan Wei was dumbfounded, but everyone else standing here waiting for the results was also dumbfounded.
The test paper turns dark blue.
What does this mean?
I believe anyone with normal thinking can draw the most correct conclusion at this time, that is, the phosphorus content in the reservoir is obviously much higher than that in the rice wine.
"Yes" Yang Li saw this scene and couldn't help but waved her hands happily and shouted excitedly.
Although we don’t know yet whether the water in the reservoir really contains excessive amounts of phosphorus, at least it shows that the water in the reservoir contains a lot of phosphorus, which is an indisputable fact.
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Fan Wei was really dumbfounded.
He looked at the test paper in his hand that had turned into dark blue in disbelief, completely in a state of sluggishness.
All this was beyond his expectation.
He probably knew better than anyone what it meant that the test paper turned dark blue.
It was precisely because of this that this strong contrast made him feel so incredible.
"How is this possible?"
Fan Wei murmured to this, seeming to react after a while.
He hurriedly picked up the test paper in his hand and compared it with the test paper soaked in rice wine.
There is no suspense.
The two test papers are put together.
The dark blue color of the test paper soaked in water extracted from the reservoir is as dazzling as possible.
The contrast between the two test papers is too great.
I am sure that it is not visible to the naked eye.
After misreading, Fan Wei frowned After comparing the test paper with the phosphorus content measurement table again, he couldn't help but finally said in shock, "If the test is correct, the results show that the phosphorus content in the water in the reservoir exceeds about 0.5 times the normal value, which is minor.
"overdose" "Wow!"
As soon as Fan Wei said this, everyone in the whole room was in an uproar.
The old patriarch was so excited that he dropped the cigarette in his hand to the ground.
He grabbed Fan Wei's arm and said tremblingly, "Mr.
Fan, what do you mean?
Does it mean that the root cause of excessive phosphorus has been found?
Can some experiment prove that the culprit of phosphorus content is the water in the reservoir?"
Fan Wei smiled awkwardly and said, "Old Patriarch, at present we can only confirm that the water in the reservoir does indeed contain excessive phosphorus, but further research is needed to determine whether the source of the children's illness is the water in the reservoir.
Just analysis.”
"It's not clear why we need to analyze it yet," the old patriarch said immediately worriedly, "Why do you still need to analyze it if you haven't already tested that the phosphorus content exceeds the standard?"
"Old patriarch, I understand what Fan Wei means.
I'm afraid he is still worried and doubtful now, so he is a little unsure whether the reservoir is the source of the culprit."
At this time, Yang Li's guess was completely correct.
He said with a sweet smile, "Actually, it's normal for him to have such concerns, because currently only the reservoirs in this village are being tested, but it's not possible to determine whether the phosphorus content in reservoirs in other villages exceeds the standard, so he doesn't dare Talk too much."
"That's easy to do.
I'll ask other tribesmen in the village to fetch water from the reservoir for you to test."
The old patriarch patted his chest and said, "These are small things.
Mr.
Fan, just do whatever experiments you want to do." , our entire clan will fully cooperate.”
"Okay, I'll trouble the old patriarch.
I have to test the water in all the reservoirs one by one before I can draw a conclusion."
After Fan Wei said this, he turned to Yang Li and frowned, "Yang Li, What I want to know most now and what feels most strange is how on earth did you know that the water in this reservoir would have excessive phosphorus content?
You came here with me, could you have predicted it?"
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