Traveling through the 80s, the beauties in the courtyard can't be provoked

That's very good. The state will give them some subsidies for their food expenses. If they can save money, three yuan a month will be enough.

With 15 yuan, she can save 12 yuan to buy some daily necessities, leaving at least 10 yuan every month.

120 in a year, and maybe I can help my brothers and sisters at home.

Tang Tian was very excited and thanked Niu Zhen repeatedly.

Niu Zhen waved his hand and said: "It's nothing, it's just a little effort."

The person Li Shenglong brought here must be Li Shenglong's friend.

There is no harm in making more friends.

Niu Zhen had really read Li Shenglong's papers and read Li Shenglong's information. If nothing else, Li Shenglong's family conditions were very good.

If you can be a good friend, why be an enemy?

To him, it was the same for everyone who worked hard and studied hard. He really did it with a little effort, but he was able to get a favor from Li Shenglong.

Of course, Li Shenglong didn't feel that she owed this senior brother any favors, but his enthusiasm was a good thing and it also saved her a lot of time, so she felt that this senior brother was really good.

Everyone quickly became familiar with each other. Niu Zhen asked Li Shenglong what kind of equipment he was interested in, and he took Li Shenglong to visit the laboratories one by one.

The most expensive thing in the entire laboratory is the liquid chromatograph that Li Shenglong looked at just now.

In fact, what Li Shenglong hopes to see most is nuclear magnetic resonance that can confirm the structure.

But even in modern times, it would be good to have one or two MRI machines in a city.

Not to mention now.

I guess I can only run to Shanghai as soon as possible from now on.

But what surprised Li Shenglong was that although there was no nuclear magnetic resonance, there was an infrared spectrometer.

"Don't be too happy too early. This instrument broke after just five or six uses after I bought it. It was eliminated by someone abroad."

"We were deceived." Niu Zhen said, then shook his head and sighed.

I really feel angry.

That's such a shame.

Li Shenglong thought to herself, then she glanced at it and said, "But you can replace the parts. If you know what's broken, fix it."

"Who knows how to repair it? Who dares to repair it? We can't find a manufacturer. No one knows how to repair it." Niu Zhen said.

The experimental instruments are so delicate that even teachers dare not touch them. How dare they, as students, touch them?

Li Shenglong pursed his lips: "Can you let me take a look at the message? I can fix it."

Niu Zhen smiled with embarrassment: "Can you really do it?"

The implication is that she still doesn't want him to move.

He really wanted to make friends with Li Shenglong, but he didn't want to risk his future to make friends with him.

It would be a big deal if it was torn down.

Tang Tian also felt that Li Shenglong was reckless. She took Li Shenglong's arm and said, "These equipments seem to be very expensive. They may be more expensive than the two of us combined. If they are damaged, we cannot afford to pay for them."

Niu Zhen also said: "This machine is indeed quite expensive. It cost more than 2 yuan."

Instruments are similar to household appliances.

A color TV now costs more than 1 yuan.

Maybe only 12 inches.

In a few decades, more than 1 yuan will be able to buy a good TV.

This is true for refrigerators, color TVs, freezers and the like.

The more technology develops and the equipment becomes more advanced, the cheaper the price becomes.

If this infrared spectrometer were modern, it would only cost more than 2 yuan.

The principle of infrared spectrometer is that the functional groups of compounds will absorb energy at different wavelengths of infrared light.

Thus some peaks appear.

Compare these peaks with the reference material. If they completely overlap, you can probably guess whether the newly synthesized item is what you want.

In other words, it is used for qualitative analysis.But he can only determine the functional groups, and cannot determine whether the functional groups of the items you synthesize are in the correct position.

Like many chemical substances, their chemical formulas and molecular formulas are all the same, but they may have different positions of functional groups, as well as left-handed and right-handed differences...

Then they are not the same thing. In this case, NMR is needed for structural confirmation.

The infrared spectrum cannot be measured.

But before the structure is confirmed, if the infrared spectrum does not match, it means that this thing must not have been made.

Therefore, when doing chemical synthesis, infrared spectrometer is an indispensable auxiliary instrument.

Compared with the current living standards and prices, more than 2 yuan is simply a sky-high price.

Li Shenglong has already thought about it. Even if she breaks it, she will not pay compensation.

It's a bad thing in the first place. If you don't take it apart and put it here, it will be treated as an antique display.

"I have money!" Li Shenglong promised: "If senior brother breaks it, it's my fault. You can just report it to the teacher like this."

"But don't worry, I will never destroy it. I never fight a battle that I am not sure of."

"This thing is not as brittle as you think, and the instruments are durable."

When Li Shenglong was in school, the teacher wouldn't let them touch each other, but when they got to work, the leader said instead: "Don't touch, be bold. How can you learn without touching?"

Really, these instruments are really not easy to talk about.

Niu Zhen and Tang Tian exchanged glances.

If you talk so much, will you be slapped in the face?
In fact, this kind of instrument sounds awesome, but its structure is relatively simple. The main components are infrared lamps and deuterium lamps.

Before dismantling it, Li Shenglong discovered that the manufacturer was somewhat conscientious. He probably knew that the instrument would not last long, so he brought an accessory.

Li Shenglong installed the accessories, then turned on the power and turned it on.

I heard the buzzing noise of the machine, the light source began to test itself, and the infrared spectrometer started operating.

"Is it really good?"

Niu Zhen and Tang Tian were surprised and happy.

No slap in the face, he is really awesome!
Li Shenglong clapped his hands and said, "So, senior brother, I don't have to pay compensation now. Should I still be rewarded?"

Niu Zhen smiled and nodded: "No problem, no problem, I will definitely report this to the teacher."

He added: "Li Shenglong, you are so powerful. I thought you were going to hit the big head."

Li Shenglong looked calm: "It's nothing. An infrared spectrometer is the simplest. It's almost like a balance. It's easy to repair."

Niu Zhen: "..."

Those scales are also treasures. Their country can't produce them, so he doesn't dare to dismantle them, okay?

But the junior sister is so amazing, not only for her skills, but also for her bravery.

I admire you.

After visiting the laboratory, Li Shenglong had a rough idea of ​​how far the chemical industry has developed today.

Although their country is backward, the universities are indeed different from those outside.

There are some flaws in the device though.

But it has everything it should have.

To put it simply, I want to synthesize a certain drug.

can do it!

So after returning home, Li Shenglong started to work on the project approval issue, and she began to write the project application report by hand.

I hope the school can approve it as soon as possible.

Of course, for your own affairs, don’t put all your hopes on others.

Li Shenglong just likes to find backup plans.

Doesn’t she have a chemistry laboratory herself?
If the school's project fails or takes too long, she will have to use her own laboratory to synthesize the drug and then borrow the school's experimental equipment.