"Have you forgotten to buckle the quality of the surface dish...... Shen Yiyun raised his glasses a little flustered, pressed them on the electronic scale a few times, then swallowed and spit, and looked at the display screen again.

The trembling was a little more intense.

The expression tightened.

"This ...... Impossible, right...... How can there be so many ......" Shen Yiyun trembled and got up and asked Shi Yang, "You obviously added an extra milliliter of piperidine, am I mistaken?"

"Yes. Shi Yang still didn't have the courage to look directly at his eldest sister, and only showed a plump side face for his sister to admire, "But it's not an extra milliliter, but 0.78 milliliters." ”

Shen Yiyun scratched his head and exclaimed: "A drop is 0.05 ml, how can you be accurate to 0.01!"

"Otherwise, what are you doing with a high-precision syringe?" Shi Yang aimed at the syringe on the table, "Within 0.5 milliliters, I can use my hands." ”

"Even if that's the case...... Shen Yiyun propped up the table with his hands and asked unwillingly, "Why is it 0.78?"

"Hmph. Shi Yang raised his eyes sharply, and the corners of his mouth raised slightly, "feel." ”

"Whew......" Shen Yiyun dropped his glasses and almost burst out of his foul mouth, "This can also be based on feelings?"

Li Zheng was caught in the middle, only feeling that the atmosphere between the two was very terrifying, and it seemed to be even more terrifying than the decisive battle at the top of the Forbidden City.

What's even more terrifying.

He doesn't understand very well.

It's okay, don't be ashamed to ask.

"Well, I'm more dish...... Ask a little. Li Zheng walked to the front of the stage and picked up the piperidine reagent bottle, "Piperidine is a catalyst in this reaction, right?"

Shen Yiyun replied, "Yes...... Normally, the amount ratio of piperidine to diethyl malonate should be 1:1, and in this conversion, in our reagent concentration, the volume ratio should be 1:10, that is, for every 10 ml of diethyl malonate, 1 ml of piperidine. ”

"It's just the most conservative strategy. Shi Yang smiled, "It is impossible to make a high yield if you are conservative." ”

Shen Yiyun stared at the white crystal in front of him and said: "The problem is here, increasing the dose of piperidine, on the surface, it can indeed increase the yield, but the alkalinity and carboanion will also increase, which will lead to the further formation of amide with the coumarin-3-carboxylate ethyl produced in the middle, which greatly reduces the yield." ”

"So, the heating reflux should be fast. Shi Yang moved his fingers and sneered, "Compress the standard one-and-a-half-hour heating process into an hour, you know, the heating reflux is dynamic, the internal pressure and reaction fluidity are changing all the time, so only a conservative constant temperature cannot achieve the fastest reaction rate, only I keep observing and dynamic adjustment is possible." ”

"This ...... This is also in your calculations?" Shen Yiyun was shocked, "I thought you were just rushing for time......"

"It's a race for time, but it's not a calculation, it's a feeling. Shi Yang emphasized again.

"Feel ......" Shen Yiyun was a little incomprehensible, "Chemical experiments, how can you ...... based on feelings?"

"It's just that you haven't done enough. ”

"......" Shen Yiyun scolded secretly, pounding the table angrily.

I...... Not enough to do?

The first year of research has just been a month...... I was stuffed into the lab by my mentor...... 10 hours a day......

That's not much?

For the first time, Shen Yiyun wanted to beat someone.

In Li Zheng's field of vision, a quiet big sister is gradually evolving into an irritable old sister.

But at the same time, Li Zheng was also desperately absorbing the spurting of learning between Shi Yang's words.

The cooking of a real awesome chef is definitely not formulaic and follows the standard process.

He will dynamically adjust the cooking technique and the dosage of condiments according to the freshness of the ingredients, the fat and tender condition, the feel of the pot, the oil and other factors.

These adjustments are impossible to quantify.

It's a feeling, it can only be a feeling!

Only a chef who has been immersed in self-improvement for many years, does not want to fall into some kind of easy fixed process, and always wants to constantly challenge himself, can cultivate the feeling.

Compared with......

Li Zheng looked at Shen Yiyun, who was holding the table and panting.

Although the big sister is also one in a million.

but they are shackled by the heavy and repetitive work of the laboratory......

Gradually, I followed the process and gave up using my brain.

Enjoy the convenience brought by shortcuts, ignoring the growth that accompanies thorns.

Senpai.

You.

Already lost.

"That'...... That can't be so much......," Shen Yiyun stared at the crystal, "The biggest product loss of this experiment is that one of the steps must be washed with 50% ethanol, but at the same time, the ester will also be dissolved in ethanol...... The loss of the product of this step is inevitable. ”

"Of course I do. Shi Yang walked to the wall step by step and silently patted a small refrigerator, "People who are snoozes can't see the morning sun." ”

Shen Yiyun was glared instantly: "Ethanol...... Ice over ???"

Li Zheng struck with both palms.

Wonderful.

As the temperature decreases, the reaction also slows down, but the effect on the washing effect is minimal.

At the same time, the precious ester is preserved to the maximum.

Wonderful.

"Fortunately, the freezing point of ethanol is low enough. Shi Yang raised his glasses, "Do you still have questions, senior sister?" ”

Shen Yiyun gradually lowered his head, and his eyes were empty: "No...... Nope. ”

This guy is only a sophomore in high school......

Is my national fund so worthless......

Undergraduate four years.

Two years for graduate school.

What the hell am I doing?

For more than a year, he worked 10 hours a day in the laboratory.

What exactly is being done?

My ...... in Jidahua Courtyard

Isn't it worth mentioning......

Just when she was on the verge of collapse, Li Zheng came over at the right time.

"Shi Yang is indeed terrifying, but I believe that you, senior sister, must also be talented. Li Zheng sighed lightly, "It's just that if you treat experiments as work, you will definitely lose interest, right?"

Yes.

Shen Yiyun groaned in his heart.

yes, I don't know when it started.

I hate experimentation the most.

Just hurry up and finish today's task.

All that's left for eating and sleeping.

That's who we are.

A group of people who are known as grinders.

"I ...... I'm not worthy to teach you......" Shen Yiyun took off his eyes, hung his head, and sighed a little lonely, "I'll go and tell my mentor to find a senior brother with a doctor." ”

"Don't, Shi Yang is not a mortal, even if the tutor comes by himself, I'm afraid he will suffer," Li Zheng said emotionally, "Senior sister, although he doesn't need you, but I need you, at least these days, take a break, don't go to work in the laboratory, right here, start from scratch, teach me little by little, let's work together, try to find the fun of chemistry, isn't it wonderful?"

Yes.

Shen Yiyun was moved again.

If only it were you.

That's wonderful.

Shen Yiyun rubbed his face, put on his glasses, and tried his best to mention the teacher's prestige.

"Brother, I'...... I'm very strict. She avoided Li Zheng's gaze and said.

"I'm not strict with what I'm doing here?"

"Ambitious. Shen Yiyun immediately turned to look at Shi Yang, and suddenly, his face was covered with another layer of frost, "I can't teach you, you can go." ”

"???" was leaning against the refrigerator, holding his forehead with one palm, and Shi Yang, who posed as a chemical powerhouse, almost planted on the spot.

What the fuck you do, why?

Aren't girls looking forward to the strong?

Am I not strong enough?

At this time, I looked at Li Zheng and Shen Yiyun who were together, and you and I were packing up the experimental equipment.

Shi Yang suddenly realized.

It's motherhood!

The motherhood of the second big sister of the research!

Take care of the motherhood of the weak!

It's right to think about it, aren't those popular male idols all looking like babies with thin skin and tender flesh.

Is there an idol who is a hunk tough guy?

Damn it.

Okay, you're Li Zheng.

pretending to be such a dish turned out to be a scumbag routine.

This...... Is that also in your calculations?