"In that case, I won't bother Professor Wang and the rest of the work, and I'll come back when I get off work. ”

Li Li is an office administrator who doesn't understand the instrument, so she got up and said goodbye and left.

After Li Li left, Professor Wang began to introduce the plasma spectrometer.

Professor Wang is indeed a professor who has a lot of in-depth research on instrumental analysis, and from time to time he pops up more cutting-edge professional terms, but Professor Wang does not deliberately elaborate on these more cutting-edge professional terms.

In the past, Yu Ziqing, who had just graduated less than a year ago, was afraid that he would have to listen to a half-understood and could not keep up with the rhythm of Professor Wang's lectures, but now Yu Ziqing not only has a very comparable wisdom and memory, but also surfed the technology web every day for the past few months. Professor Wang's lectures seemed concise to his ears, without any superfluous nonsense, and he was quite teachable.

Professor Wang showed off a little, and when he saw that Yu Ziqing was silent, he nodded again and again, but it seemed that he was a professor who had no connotation and couldn't say anything esoteric.

"Xiaoyu, if there is anything you don't understand, try to ask questions, don't be embarrassed. Halfway through his speech, Professor Wang finally couldn't help but speak.

"Mr. Wang spoke very thoroughly, and I could understand it. Yu Ziqing replied with a smile.

Professor Wang was a little unhappy when he heard this, and thought to himself, I am talking about a lot of things that even those masters and doctors who have already participated in the work and come here for training cannot understand at once.

"Oh, at present, the detectors used more in the full-spectrum direct reading plasma spectrometer are CCD and CID, and Liman uses CID, so can you talk about the advantages and disadvantages of CID and CCD?" Professor Wang asked with some unhappiness.

Yu Ziqing nodded and replied calmly: "The charge-coupled device CCD is... However, there is a charge overflow phenomenon in the local CCD, and the signal processing circuit is generally relied on to solve the overflow problem of the detector, which belongs to the destruction of the surname readout. The charge injection device CID is ...... It belongs to the non-destructive surname readout, but the quantum efficiency, dark current level, and reading noise are not as good as CCD. For the shortcomings of CCD destroying surname readout, piecewise coupling can be used to improve the ......"

Yu Ziqing not only clearly explained and analyzed the working principles, advantages and disadvantages of the two detectors, but also put forward suggestions for improving and solving these shortcomings in the current cutting-edge research papers.

After hearing this, Professor Wang was greatly surprised, and immediately looked at Yu Ziqing, an undergraduate student who had just graduated for one year, and nodded again and again and praised: "Well, it is very good." Nowadays, few people who are engaged in analysis have such a thorough understanding of the principle of the instrument. ”

Yu Ziqing smiled lightly, and did not show even a little bit of complacency because of Professor Wang's praise, which made Professor Wang appreciate Yu Ziqing even more, and unconsciously began to look at him with the eyes of peers.

Next, Professor Wang talked about some knowledge of the principles of instrument optics, and seeing that Yu Ziqing basically understood everything, he did not go into further details, and asked Yu Ziqing to directly follow his master's student Xiao Bi to work on the machine.

An afternoon is not long, but for Yu Ziqing, who has solid theoretical knowledge and strong hands-on comprehension ability, it is enough for him to master the basic work of plasma spectrometer, and even the spectral line interference, selection, and instrument optimization Yu Ziqing has been able to put forward some correct opinions.

This made Xiao Bi, who took Yu Ziqing on the machine, very embarrassed, and later he was quite constrained, for fear that the wrong point would make Yu Ziqing laugh.

During this period, Professor Wang also came two or three times, and every time he saw Yu Ziqing skillfully helping Xiao Bi test samples, while Xiao Bi was doing nothing on the side, he was very surprised, and he really suspected that Yu Ziqing had used a plasma spectrometer before.

"Xiaoyu, I think tomorrow there will be another day of training on the machine, and you will be able to move freely. When Professor Wang came to see the progress of the work here for the last time, he couldn't help but pat Yu Ziqing on the shoulder and said when he saw Yu Ziqing skillfully selecting the score line and deducting the background.

Yu Ziqing turned his head and smiled: "It's not important to play, you can do it anytime, but it's not easy to come to you." You have a lot of high-end equipment here, if you don't mind, I want to learn everything. ”

"You young man is quite ambitious, okay, as long as you want to learn, you can follow my students, with you they can just be easy and easy, by the way, the teacher's addiction. Professor Wang admired Yu Ziqing for being a self-motivated young man, and readily agreed.

"Then I really want to thank you, I invited you and this classmate Bi to dinner in the evening. Yu Ziqing patted Xiao Bi's shoulder with a smile and said.

Although Yu Ziqing looks young like a college student, his every move is so natural and unrestrained, as if he is not facing a professor at Tsinghua University, but an ordinary peer. This made Professor Wang always feel that something was wrong, but he couldn't say it, as if things were supposed to be like this.

"Hehe, if you have the opportunity to come to Hangzhou in the future, please invite it again. In the past few days, Mr. Wang, please, he happened to be in Yanjing today, and said that he would come over with Xiao Li later. Professor Wang said with a smile.

Wang is always the agent of Liman company in China, when we first talked about cooperation, I came to the geology and mining institute, and also visited their laboratory, Yu Ziqing has seen it, and there is an impression, of course, Mr. Wang has no impression of Yu Ziqing, a small staff.

Seeing Professor Wang say this, Yu Ziqing no longer insisted.

When it was time to get off work, Xiaoli and Mr. Wang came to the laboratory together.

Mr. Wang obviously often comes to the laboratory, and after coming in, he first shook hands with Professor Wang very warmly and said hello, then patted Xiao Bi's shoulder cordially, and finally turned his gaze to Yu Ziqing, stretched out his hand and smiled: "You should be Yu Gong, you are really young and promising, and you will need more help for the market development of Zhehai Province in the future." ”

Yu Ziqing shook hands with Mr. Wang, he could see that Mr. Wang's words were insincere, and he could also see that Mr. Wang didn't take him very seriously, and the main purpose of going out in person this time should be to have more emotional exchanges with Professor Wang, and his arrival was just an excuse.

Sure enough, before getting off work, Mr. Wang had been taking the initiative to find a topic to chat with Professor Wang, just to take care of the scene, and occasionally chatted with Yu Ziqing casually. However, Professor Wang was afraid of snubbing Yu Ziqing, so he dragged him in to chat from time to time.

Mr. Wang's style of looking down on people and hypocrisy made Yu Ziqing quite unhappy, if it weren't for Professor Wang's face and the future cooperation between the unit and Liman Company, I'm afraid Yu Ziqing would have left with his sleeves up.