I Have a Research Support System

July 31, afternoon.

When Xu Qiu came to the laboratory, he found that the other three had already arrived.

A total of two men and two women began to divide the work.

Xu Qiu and Duan Yun each allocated a glove box.

Xu Qiu is responsible for the spin-coating glove box:

First of all, clean up the inside of the glove box, find out the packaging bags scattered in the corners, discarded disposable centrifuge tubes, and even the needles of the syringes, and dispose of them as solid waste;

Secondly, the solution that has been prepared for a long time and cannot be used, or is unclaimed, and the last little solvent left in the reagent bottle should be treated as waste liquid.

Pour them into a waste liquid bottle, mark the main components on the bottle, and finally collect them into a special waste liquid bucket. Of course, you must also pay attention to the inability to mix acids and alkalis, and oxidants and reductants.

In addition, the used reagent bottles should also be collected and delivered together with the waste liquid to the recycling place designated by the school.

The main reason is that the interior space of the glove box is limited. If it is not cleaned regularly, its interior will become more and more chaotic. This is also the embodiment of the second law of thermodynamics, the principle of entropy increase.

Finally, it is necessary to guard against the impact of unexpected events.

For example, during the summer vacation, the oxygen value in the glove box may exceed the standard due to power outages and other reasons, so it is necessary to protect precious medicines and reagents that are sensitive to oxygen.

On the outside of the spin-coating glove box, in addition to the small transfer cabin used to transfer petri dishes and reagent bottles, there is also a large transfer cabin, which can transfer slightly larger instruments such as glue homogenizers and balances, but the frequency of using it very low.

At this time, its function is manifested. It can be used as a warehouse, put precious medicines and reagents in it, and fill it with nitrogen. It is no problem to maintain the nitrogen atmosphere inside for 15 days.

Duan Yun is in charge of the evaporation glove box.

Because this glove box is only used for evaporation and test operations, there are no solvents, reagents, etc., so the interior is relatively clean, and it is relatively simple to clean up.

However, the vapor deposition residue left in the vapor deposition chamber needs to be cleaned.

The evaporation cabin has two doors, one door is inside the glove box, which is usually used for evaporation.

The other door is directly connected to the outside world and can be opened from the outside.

When cleaning, close the inner hatch, open the outer hatch, and then extend the vacuum cleaner into the evaporation cabin for cleaning.

After cleaning, close the hatch outside and vacuumize the cabin.

Since the cabin is filled with air during the cleaning process, some oxygen molecules will be adsorbed inside the cabin. If the vacuum is vacuumed according to the normal operation, it will take a long time to achieve a vacuum degree of 1E-5 Pa. time.

Therefore, it is necessary to heat the outside of the evaporation chamber while vacuuming, to speed up the desorption rate of oxygen molecules, and greatly shorten the time required for the vacuum degree to reach the standard.

The work of the two girls is relatively simple, mainly cleaning and tidying up the laboratory.

In addition to regular sweeping and mopping, it also includes tidying up the messy objects in the laboratory.

Tools such as adhesive tape, hexagonal wrench, and multimeter are sometimes forgotten to be put back in place after use, and they are difficult to find when they are used again, so they need to be tidied up regularly.

The four worked together and completed all the cleaning work in just over two hours.

They closed the windows, turned on the air conditioner, set it to 20 degrees, turned off the lights and closed the door, and left the laboratory.

The air conditioner is always on because the temperature in the laboratory usually needs to be lower than 26 degrees, otherwise there will be safety hazards.

…………

Magic City Station.

Xu Qiu pulled a small suitcase, carrying a schoolbag, and boarded the train home.

His hometown is a small fifth-tier city, and there are no high-speed trains or high-speed trains that go directly to Shanghai, so he bought a hard sleeper.

The green leather car with Z prefix takes a total of more than 20 hours.

Bang bang bang

...

Welcome to take this train, and I will spare you a few minutes to introduce a green health food dried blueberry from Tianshan, Xinjiang Province. The dried blueberry is a small blue fruit, the fruit is similar to a round shape, and the flesh is delicate, sweet and delicious.

...

Beer, mineral water, rice pudding with peanuts and melon seeds, come on, do you need anything?

...

Do you need a hot box lunch? The box lunch just out of the pan is 25 yuan per box.

Waiting for the salesman to walk away, the two young people next to Xu Qiu exchanged:

I guess when he comes back to sell bento, the price will be reduced, 10 or 15 yuan, believe it or not?

I don't believe it, I'll just eat instant noodles.

The other person shook his head and said, took out a box of Laotan sauerkraut noodles from his bag, and walked towards the hot water point at the front of the car.

...

Do you need a box lunch? It's the last trip.

How much?

25 yuan.

The young man hesitated for a while, then said:

Come here, support WeChat payment.

Scan the QR code here.

Smelling the aroma of rice, Xu Qiu also took out a big bag from his bag, which contained potato chips, marinated eggs, sausages, spicy beef, instant noodles, yogurt and other foods bought in the supermarket.

There are also two hamburgers I just bought from Kaifeng before getting on the bus, they are still hot.

Xu Qiu unpacked a hamburger box and gnawed on it.

…………

After a day and a night of travel, the train finally arrived.

Xu Qiu contacted his parents in advance and learned that his father, Xu Hongwen, was driving his mother, Bai Xiaofen, to pick him up at the station.

In fifth-tier cities, there was not much traffic at the station. As soon as he got out of the station, Xu Qiu saw his parents and walked towards them.

Bai Xiaofen looked at Xu Qiu carefully, and said:

You lost weight, did you not eat properly at school?

I never miss three meals a day, Xu Qiu said unconvinced:

Besides, where have I lost weight? My weight hasn't changed in three to five years, and the fluctuation is less than ten catties.

How is school, have you talked about a girlfriend yet? Bai Xiaofen asked.

not yet.

You have to hurry up, Bai Xiaofen said earnestly:

Let me tell you, if you don't find a girlfriend in school now, it will be hard to find a girlfriend after you leave the school.

I know, I will work hard. Xu Qiu felt dizzy, and looked towards the driver's seat for help.

But Xu Hongwen just smiled and didn't speak.

How about the research institute, have you contacted your tutor yet? Bai Xiaofen asked again.

...

The topics along the way revolved around Xu Qiu.

…………

Back home, Xu Qiu came to his room, while his parents went to the kitchen to prepare dinner.

He put his luggage away, lay on his big bed, and began to think about his schedule during the summer vacation.

The holiday is only 15 days long. Excluding the time spent on the road, it is actually less than 13 days. In addition to visiting relatives, it takes time to eat out. Basically, there are not a few days off.

Therefore, he does not plan to arrange time to do experiments, and he has no experimental direction now.

In the end, he decided to exercise for about 1 hour a day, read literature for 1 hour, and write articles for 2 hours.

In this way, the holiday is almost over and the article is basically completed.