I Have a Research Support System

After the experiment, Xu Qiu set off early and took Han Jiaying to the school bus boarding point.

She had to catch the last bus at 9:30, so she still had to queue up early.

Although in most cases, the last bus is full of people, but if you happen to encounter special circumstances and miss the bus, it will be difficult to go back to the Handan campus.

If you take a taxi, it is very expensive, and if you take the rail transit, it is very troublesome.

Because there is no subway station nearby, if you want to take the subway, you need to take a tram first, and then transfer to Metro Line 10.

The school is just between two subway stations, and there is still a long way to go when getting off the subway.

While waiting for the bus, Xu Qiu saw that the school girl was still wearing thin clothes, so she twitched her nose in the cold wind.

He approached Han Jiaying to shield her from the wind, and said with concern:

"Wear more tomorrow."

Then, he changed the subject:

"Otherwise, if you catch a cold, who will help me do the experiment?"

"I know, brother," Han Jiaying said with a smile:

"Tell me why you can say such a thing so confidently."

"As a senior brother, I should care about you."

"You know that's not what I said."

"Okay, the school bus is coming, I'm leaving, bye."

"Goodbye, stay safe."

Xu Qiu stayed overnight as usual, passed by the vending machine downstairs of Microelectronics, and bought a bottle of Tang Shuaibo Qingmei green tea.

Today, you need to replenish your water.

...

Early the next morning, Xu Qiu was woken up by the alarm clock.

He hurriedly put on his clothes, entered the A502 laboratory, put on the protective gear, and then went to the fume hood to check the reaction.

This time, there was no accident.

The six responses cast by the duo all looked normal.

So, he started the capping reaction, then returned to the office to wash, exercise early, eat breakfast, and then went to the laboratory to start the second capping reaction.

Until after nine o'clock, the two capping reactions were almost over.

Xu Qiu got up to go to the laboratory to shut down the reaction, but met Han Jiaying at the door.

If he hadn't braked in time, the two would have collided.

Observe the school girl up close.

Today, she is still wearing autumn clothes, but she has put on a blue sweater jacket with cartoon patterns outside, which looks very warm.

"Brother, I want to go in..." Han Jiaying reminded in a low voice.

"Oh, good." Xu Qiu hurriedly got up to get out of the way, and only then did he realize that he was blocking the door.

"How about the synthesis reaction this time?" Han Jiaying put down her schoolbag and asked.

"It looks pretty good. Now that the blocking reaction has just ended, let's do post-processing together." Xu Qiu said.

"Okay." Han Jiaying eagerly said.

Today's post-processing process is relatively simple.

That is to drop the toluene solution in the reaction bottle into methanol to precipitate, then filter, simply dry, and then perform Soxhlet extraction with three mixed solvents of methanol, acetone, and n-hexane.

After processing, it was almost noon, and the two went to the cafeteria together.

On the way, Xu Qiu began to plan the experiment:

Soxhlet extraction theoretically takes about 12-24 hours.

Of course, if the synthesis reaction is relatively successful and the content of small molecular substances and oligomers in the polymer is relatively small, this time will also be shortened.

But in any case, today's time is definitely not enough to do the next experiment, which is Soxhlet extraction with chloroform.

Considering that tomorrow is Wednesday, there is a professional course on "Nanomaterials" in the morning, which has been skipped many times this semester.

Moreover, this batch of products is not as eager to publish big articles as the previous batches.

Therefore, Xu Qiu decided to stop at the step of mixed solvent Soxhlet extraction today.

Wait until the class is finished on Wednesday morning, and then return to Zhangjiang to continue the experiment.

The main reason is that the school stipulates that if the number of students skipping classes exceeds one-third of the class hours of the course, the teacher has the right to unconditionally refuse the student to participate in the final assessment and directly fail the course.

In a semester, a course lasts about 16 to 20 weeks, that is, skipping more than 6 classes will trigger this rule.

Of course, most teachers don't know how to take roll calls, and don't care whether students come to class or not. They only complete their own teaching tasks, and usually give full marks.

As long as the students come to take the final exam, they will give the students grades according to the final grades, and generally they will not embarrass the students.

But after all, there is such a rule, and we still have to respect it, Xu Qiu doesn't want to leave a handle on the outside.

In fact, a better approach is to ask the teacher for leave. In the special case of doing experiments, ordinary teachers will agree.

But it’s okay to ask for leave occasionally. If you ask for leave five or six times in a semester, even if the teacher doesn’t care, he will remember your name.

As for what the consequences will be, it's hard to say.

...

In the afternoon, it is relatively free, and the Soxhlet extraction device is always on, so there is no need to look at it.

You can even go back to the Handan campus directly, let it extract for 24 hours, and wait for the next day to continue the experiment directly.

Xu Qiu considered for a moment, but decided to stay in Zhangjiang.

Because for him, it's all the same wherever he is.

It might be better to be on Zhang Jiang's side. Except for Han Jiaying, no one would bother him.

If it is in the Handan campus, there are many people and equipment around, and Teacher Wei will come and go from time to time. It is very likely that he will be distracted by various things and reduce work efficiency.

"Han Jiaying, today's experiment is over, what do you say, stay here or go back to Handan Campus." Xu Qiu asked.

"Brother, do you want to stay?" Han Jiaying said.

"Well, I'm typing papers here, and Zhangjiang is relatively quiet," Xu Qiu said.

"Then I'll stay too. My brother taught me how to read literature yesterday, and I'll just practice it today." Han Jiaying said:

"I feel that reading literature is more helpful to me than reading books like "Semiconductor Physics."

"Each has its own advantages and disadvantages. Most of the documents we have seen report on a material, and then perform characterization of its photoelectric properties." Xu Qiu said:

"Reading these documents at the beginning is really helpful, allowing you to systematically grasp the process of doing scientific research in the field of organic photovoltaics.

But as the amount of reading increases, the marginal effect of reading such literature is obviously diminishing. Like me now, it is difficult to gain too much from literature related to this material.

On the contrary, some theoretical books or literature are more helpful to me, allowing me to deeply understand the operating mechanism of battery devices.

The articles published today are all about how good our materials are, but few people can explain why they are so good and how to reproduce them.

Theoretical research is still far behind. "

Han Jiaying seemed to understand, but she still expressed her opinion:

"I think with the strength of my senior brother, in a few years, maybe I can come up with a new and complete set of theories."

"Let me borrow your good words," Xu Qiu unplugged the USB flash drive from the computer and said:

"Okay, I'll copy the electronic version of the document to you. You can find the nearest document and start reading it. If you have any questions, feel free to ask me."