Chapter 12
Chapter 12
To be honest, when undergraduates conduct experiments, they must be watched by graduate students or doctoral students. Of course Ai Guichu knows this rule, but he never thought that this kind of thing would happen just because he didn't see it at a glance.
It was the filter bottle that exploded in the laboratory. Ai Guichu glanced at the water pump that was still running, and quickly turned off the power.
Ai Gong's side face was cut open by the broken glass fragments. Ai Guichu looked at it and asked, "What medicine?"
Ai Gong sucked in the air-conditioning with a "hiss" and said, "Dichloromethane."
Hearing this, Ai Guichu felt relieved, pressed Ai Gong's head under the faucet, and turned on the water valve: "Dichloromethane is relatively low in toxicity, you should wash the wound first, and I will deal with it."
Ai Gong lowered her head and responded in a low voice.He's not going to admit that he was just scared!
Since there was not much leakage of dichloromethane, Ai Guichu took a box of quartz sand and poured it up. Seeing that the dichloromethane was gradually absorbed, he picked up the broom and swept away the glass fragments and quartz sand.
Seeing that Ai Gong was almost flushed, Ai Guichu checked that the laboratory was not in any danger, and then took Ai Gong back to the lounge.
Because of getting into trouble, Ai Gong obediently sat on the sofa, lowered her head and dared not speak.
Ai Guichu looked at Ai Gong, took out the first aid kit, and used iodine to fluoride his wound to eliminate inflammation: "What do you think?"
"Ah..." Ai Gong was stunned for a moment, then realized that Ai Guichu asked him the reason, and said, "Because there is an NMR tube that hasn't been washed..."
Ai Guichu paused holding the tweezers, glanced at Ai Gong, and continued: "Don't worry about the NMR tube, as I said before, it's right to wash the NMR tube alternately with ethyl acetate, ethanol, and methylene chloride. , I also told you to use an extended injection needle to cooperate with suction filtration, and use air pressure to flush the tube wall, but, have you noticed that after each wash with dichloromethane, an ice layer will appear on the outer wall of the NMR tube?"
Hearing this, Ai Gong nodded hesitantly, he had indeed noticed this.
"The reason for this is that the boiling point of dichloromethane is low. Due to the suction filtration and decompression, the vapor pressure of dichloromethane decreases, and the boiling point decreases, so that the gasification absorbs heat, so the tube wall freezes, and because the climate is hotter now , the filtration pressure is too high, it is not suitable, the gasification of dichloromethane is serious, and the pressure in the bottle increases rapidly, which can easily cause the explosion of the suction filter bottle, resulting in injury." Ai Guichu carefully treated Ai Gong's wound, and looked at it for a moment.
Ai Gong nodded, expressing understanding.
"It's my fault this time." Ai Guichu said suddenly, holding Ai Gong's uninjured right cheek with one hand, "I shouldn't have left you alone."
Surprised by Ai Guichu's confession, Ai Gong was flattered, waved his hands quickly, and said, "No... I was too reckless..."
Ai Guichu stroked Ai Gong's face with her fingers, and stopped talking.Just now when I saw Ai Gong sitting on the ground, he didn't want to try that flustered feeling anymore...
Ai Gong felt a little awkward, but was embarrassed to avoid the other party's attitude.Fortunately, Ai Guichu let go of Ai Gong quickly, and said, "You have wounds on your body, so don't come to the laboratory these few days."
Ai Gongba had no choice but to come, and nodded immediately, his eyes widened.
Seeing this, Ai Guichu reached out and rubbed Ai Gong's somewhat too long hair: "Okay, you go back today first, and I'll take care of the rest."
Ai Gong nodded, and seeing Ai Guichu "chasing people away", she didn't stay any longer.
Just got up and took two steps, Ai Gong thought of something, turned around and stopped, looked at Ai Guichu, hesitantly said: "Teach... Brother Gui Chu, you should also pay attention to your body, after all, you just came out of the hospital."
Hearing this, Ai Guichu closed her eyes, nodded, and looked at Ai Gong with a smile.
Ai Gong looked at Ai Guichu who was smiling warmly, and suddenly felt uncomfortable, stretched out her hand and scratched her head: "... Well, I'm going first."
Ai Guichu watched Ai Gong leave, and stood up after a while.
"Ai Gong..."
With the gold medal for avoiding death, Ai Gong is naturally happy.Instead of going to the laboratory, the focus of my spare time is on the drama.
Perhaps the performance date was approaching, and everyone was under a certain amount of pressure, but they were not overwhelmed by the pressure. Instead, the efficiency was extremely high. It was originally behind schedule, but the whole audience was stunned the day before the performance...
It's not easy for Nima!
Ai Gong stood at the clothing rental office, watching the director choose and choose, looking for medieval European aristocratic clothing according to his frame.Ai Gong looked around boredly, and blinked helplessly as she watched the actress choose the gorgeous costumes with great interest.
"That's it." Director Luo Xiaonuan stuffed a white gold-edged European court suit into Ai Gong's arms, "Go and try it."
"Oh... oh." Ai Gong nodded, carrying the clothes into the fitting room.
After changing clothes and coming out, Luo Xiaonuan, who was in charge of his clothes, looked around him a few times, resting his chin on one hand and thinking, "It's always weird..." Suddenly, the other party had a flash of inspiration, and said to the president, standing up. He went out of the clothing rental office.
This store is very familiar with their club, and they are not afraid of people running away. Seeing that Ai Gong changed clothes, she even joked a few words.
Ai Gong was dragged by Luo Xiaonuan in a daze, and was thrown into the barber shop in the blink of an eye. Before she could react, she was pressed on the chair. Luo Xiaonuan talked to the stylist for a while, and the stylist came over with a knife .
There is an ominous premonition... Ai Gong looked at the hairstyle of the stylist "屮艸芔茻", and then at his wild movements, and closed his eyes in despair.
Amitabha, may Allah be with him, Amen.
After more than half an hour of pruning, Luo Xiaonuan patted Ai Gong's shoulder to wake him up.
Ai Gong was dreaming that she was washing NMR tubes, and suddenly she was woken up by Luo Xiaonuan and was frightened for a long time.
"Look at it." Luo Xiaonuan raised her eyebrows, and nodded her chin towards the opposite mirror.
Ai Gong looked up at the mirror and froze for a moment.
Ai Gong has never done any hairstyles since she was a child, and she doesn't know what her hairstyle looks like. Today, I saw it like this...
Fuck, the kid in the mirror looks good!Look at those peach blossom eyes, look at those provocative strands of hair hanging down...
Ai Gong poses in front of the mirror, and smiles at Luo Xiaonuan: "How swollen, handsome!"
Luo Xiaonuan smiled, and patted Ai Gong's shoulder: "Okay, okay, let's go."
After paying the bill, he followed Luo Xiaonuan back to the clothing rental office.Sure enough, being praised by everyone, Ai Gong smiled and changed his clothes.
"Take back the clothes tomorrow." The president said, "Ai Gong, remember to call your girlfriend to help everyone put on makeup."
Girlfriend...couldn't be the pseudo-mother Sun... Ai Gong's hair stood up, and she hurriedly tugged on the sleeve of the president, but the president avoided it in disgust, and went to arrange other things.
"...That's not my girlfriend." Seeing that everyone ignored him, Ai Gong retorted weakly.
Everyone gave him stingy glances.Ai Gong shrugged and followed everyone back to school.
The invitation was delivered by the president himself, because there are always some people who care about their status, and others are powerless to help the president. What I can do now is to prepare for tomorrow's performance.
The script of "A Midsummer Night's Dream" is very long. Even if their drama company only chose one of the side stories, the play is still an hour and a half long.
The director specifically emphasized the sequence and positioning of the stage, and everyone dispersed.
Since the leaders and professors invited were of a certain weight, at noon on the second day, everyone was arranging the seats and putting up the nameplates.
But these are logistical tasks, and the actors are all doing makeup at the moment.Because it is a stage costume, the costumes are thicker.Pseudo-Niang Sun transformed Ai Gong into a vampire earl alluringly, which is quite a bit of European aristocratic demeanor.
Since the protagonist focuses on taking care of the object, by the time the stage makeup is finished, an afternoon has passed.
The vice president brought a few big buckets of family buckets to reward everyone. Ai Gong looked at the greasy food and felt a little unappetizing. She drank a few sips of milk tea and prepared to go on stage.
The lights are on and the lights are off, people come and go, the drama on the stage is going on, and the audience is watching.
Ai Guichu looked at Ai Gongru's eyebrows and eyes, dancing like a dance, and felt her lips were dry.Ai Guichu followed him no matter whether he was on or off the stage.
The lighting was controlled by the director Luo Xiaonuan himself, and the sound effect was also controlled by the head of the technical department. Everything went smoothly beyond expectations.
The audience's response was unexpectedly good, and the audience broke up with unprecedented emotions.
Ai Gong was very serious during the performance, and hardly looked at the audience who came. It was only after the end that Ai Guichu was sitting below.
Not seeing each other for a few days, Ai Gong also forgot the embarrassment, went up to chat for a few words, but was called away before he could say anything more.
It was inevitable to finish the project, and without changing their clothes, the crowd rushed to the pre-booked KTV private room.
Ai Gong was the main character, and everyone was laughing at the nasty lines from the show just now, finding all kinds of reasons to drink, and Mistress Sun was also booing from the sidelines, fearing that the world would not be chaotic.
Ai Gong was a little smug, she hadn't eaten, and the consequences of drinking on an empty stomach were revealed.Dizzy, I went to the bathroom to get closer to nature, and then swayed back.
"Hey! I'm back!" Everyone pressed Ai Gong to sit back. Only then did Ai Gong realize that everyone started to play with the wine bottle. Whoever faced the bottle would tell the truth or take a big risk.
Ai Gong was lucky, she was pointed out as soon as she sat down, thinking that these people have never had a limit, and they didn't know what questions to ask, so she said directly: "Big adventure!"
"Oh!" Everyone booed, and another actor who played the leading role shouted, "The first person in the phone book! Confession! Confession!"
"Yes! Confession, confession!"
When Ai Gong heard it, she was overjoyed, thinking that the first person in the phone book was his mother, there was no pressure, but when she opened it, she was dumbfounded——
Nima, the initial letter of "Ai" is "a"!The first one is Ai Guichu, there is wood!
"Er... let's be honest..."
"Big adventure! Big adventure!..." Seeing Ai Gong's embarrassment, everyone immediately refused and shouted, and someone reached out and dialed directly.
"Hey..." Ai Gong's eyes dimmed, and she realized that the phone was picked up before she could hang up.
It was nothing more than rushing ducks to the shelves. Ai Gong saw that the other party was already connected, so he just pressed the loudspeaker button without doing anything else.
"I have something to say—" The laughing people nearby quickly fell silent.
"Ai Gong? Tell me." Ai Guichu's voice sounded like he was in a good mood.
Her heart was like thunder, and Ai Gong felt that she was a bit over the top, dizzy in her head, and her whole body was so hot that she was about to emit white gas.
"Teach me, teach me, no... Brother Gui Chu, I, I, I... I like you!"
The author has something to say:
Sorry for typing "iodoform" into "iodoform", which means that iodoform is definitely not used for disinfection... QAQ error
NMR tube
The inner diameter of the NMR tube is only 5mm, which is relatively thin, and it is generally difficult to clean. Therefore, in the author's laboratory, two extended syringe needles are inserted into the rubber stopper to clean the NMR tube, and the interface is plugged on the suction filter bottle. The rubber stopper is like the stopper of the infusion bottle during infusion, so it can be flipped up, put the NMR tube on the needle, turn on the water pump, and add reagents to the rubber stopper. Due to the air pressure, the liquid will be drawn along the tube wall. Suction up and inhale into the filter bottle, so as to achieve the effect of washing the inner wall.
When the author was washing the NMR tubes, a brother saw that I used dichloromethane and told me to be careful, because he had encountered an explosion before, and he had to stand on the upper hand when washing the NMR tubes... He said that he would take my brother over I am sure it will not explode, because the temperature was relatively low at that time ╮(╯_╰)╭, as the only junior in the laboratory, the author said that the pressure was very high...
Compared with petroleum ether and ethyl acetate, the toxicity of methylene chloride is very low, and it has almost no toxic effect, unless it is leaked on a large scale or swallowed by mistake.Dichloromethane is what dentists use as a local anesthetic...
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