"Little Doctor Li?"
The old housekeeper of Duke Yan's mansion looked at Li Ang who suddenly visited with a look of shock.
"How is Duke Yan doing?"
Li Ang said: "I found a way."
"plz follow me."
The old housekeeper suddenly became serious and led Li Ang to the lobby.
You can still see medicine pots along the way and smell the lingering smell of medicine.
The descendants of Yan Mansion, including Yan Lin, were standing in the lobby, looking helplessly at Yan Yundang, who was sitting with his majestic horse and golden sword -
His face was still yellow, and he closed his eyes, listening to what the man in Taoist robes in front of him was saying.
"...The general was born in Shuozhou, so he should naturally return to his roots. In the northwest of Shuozhou, there are two mountains, one is Pingdingxingshan, and the other is Gaoshan. There is a ditch in the middle called the earth. Two mountains and one ditch are used to store wind and absorb energy, so-called If Qi rides on the wind, it will disperse, but if it is bounded by water, it will stop..."
Okay, now you are looking at the feng shui of the cemetery.
Li Ang complained in his heart, but it wasn't very strange.
The average lifespan of people in the Yu Kingdom is not very high, and it is very rare to be seventy years old. Most elderly people will ask their families to prepare coffins, shrouds and graveyards early to prevent them from being buried in a hurry when they leave.
The reason why Yan Lin and others were sad was entirely because Yan Yundang, as a martial arts master, fell ill too suddenly and did not give them any psychological preparation.
The housekeeper walked forward with gentle steps and said softly: "Mr. Lang, little doctor Li is here."
"Um?"
Yan Yundang opened his eyes, looked back at Li Ang, and said with a smile: "Master Li Xiaolang. The method you said last time is indeed good. Those pigeons will get sick if they eat only rice, and they will recover after eating brown rice.
It seems that there is really something wrong with my gastrointestinal tract and I cannot absorb the strange substance you mentioned. "
"The Duke of Yan,"
Li Ang cupped his hands and said: "This junior is here for this - I have found a new way, which may be able to relieve the pain."
"What?!"
Before Yan Yundang said anything, Yan Lin took two steps forward with excitement on his face, "Doctor Li, do you really have a solution?"
Li Ang nodded and said: "It's just a method. The probability of successful cure is only about 70%."
"Seventy percent..."
Yan Lin turned to look at Yan Yundang. During this period, the Yan Mansion invited many famous doctors and prescribed some medicines including gastrointestinal treatment, but Yan Yundang's pernicious anemia still failed to improve.
"Father, you might as well give it a try."
"Um,"
Yan Yundang took a deep breath. Although he was ready to face death, if he could live one more day and watch his children and grandchildren grow up, he would be able to accept it. "Come here, wait for Dr. Li." prescription..."
"My lord, this medicine does not require a prescription."
Li Ang said: "The things I need are fresh pork liver, the more the better;
Boil cold water, the more the better;
Several bottles of pure wine produced in the Academy;
Four ceramic mortars; four thin balsa boards cut into circles; sixteen strong strings;
One drilling awl; eight chopsticks;
Four muslin bags;
a casserole and a porcelain bowl;
a cart of white clay;
There are also thirty-six glass tubes - basically like this. "
Li Ang asked the housekeeper for paper and pen, and drew the top view, side view, and front view of the small glass test tube on the paper, and marked the dimensions on all three pictures.
Li Ang asked: "Can this kind of glass pipe be made with the level of craftsmen in Chang'an?"
"able."
Yan Lin took a look, then stood up and said to Li Ang: "The best glass shops and glazed shops in Chang'an all enshrine telegraph masters who can use telepathy to change the shape of hot glass and create exquisite utensils."
"That's good."
Li Ang breathed a sigh of relief, "After all these are ready, we can start making medicine. By the way, General Yan, we will finally need four strong men and a light-tight room."
"good."
Yan Lin immediately asked his men to prepare - although these things were unrelated, after seeing hundreds of pigeons fall ill and recover according to Li Ang's experimental methods,
He only has trust in Li Ang.
"Little Doctor Li,"
The Yan family members were all busy and nervous. Yan Yundang still sat calmly on his seat and asked with a little curiosity: "Isn't the montmorillonite white soil used to stop diarrhea? Do you need a whole cart?"
Li Ang shook his head, "This time it's not to stop diarrhea, but to filter it."
Regarding Yan Yundang's illness, the entire Duke of Yan's government was operating at full capacity, and everything needed was quickly prepared for Li Ang.
"I need to prepare the medicine in a light-tight room, so please use straw mats or something to cover the windows outside.
If you want to watch, you can go into the house together, but you can only light an oil lamp. "
Li Ang said casually and asked the servants of Yan Mansion to enter the sealed room with all the utensils.
Yan Yundang followed him in curiously, but Yan Lin couldn't resist him, so he had no choice but to follow with an oil lamp.
"The dosage of this medicine is quite large. I will only demonstrate it once. You should pay attention and remember it. It will be up to you to prepare the medicine for Duke Yan in the future."
Li Ang said to the Yan Mansion servants in the room, and with the light of the oil lamp in Yan Lin's hand,
First wash your palms with pure wine, then clean the fresh pork liver with pure wine to remove the blood on it.
Then take the scissors, cut the pork liver into pieces, put it in a mortar, grind it quickly and carefully, add water from time to time, and grind it further into chips.
The significance of this step is to crush the pig liver, which is rich in vitamin B12, and the next step is to centrifuge.
'The normal laboratory centrifugation procedure is to pour the solution of pig liver fragments into a centrifuge tube and put it into a centrifuge. Rotate at 3500 rpm for ten minutes.
Separate the solid debris and liquid in the pig liver solution. Obtain supernatant with higher vitamin b12 content.
In the absence of a modern centrifuge, one can only make one...'
Li Ang took an awl and drilled four diagonally distributed button-shaped holes in the middle of the thin round board. He passed two strings through the holes and looped them back, and fixed them on the chopsticks on both sides.
Yan Lin wondered: "This is..."
"A rotating flywheel children's toy with centrifugal function."
Li Ang smiled and picked up two chopsticks, shook the string gently, pulled and retracted the chopsticks, and the round wooden board in the middle immediately started to rotate on its own.
Very good, spins smoothly.
Li Ang put down the flywheel toy with satisfaction, poured the pig liver solution into glass tubes of the same size, and plugged them with corks. A total of eight glass tubes were filled.
And each glass tube is firmly tied to both sides of the circular flying disk by punching holes in the wooden board with ropes.
Achieve the same effect as the balance weight of a laboratory centrifuge.
Next...
Li Ang picked up the flywheel toy, held the chopsticks and pulled each hand to make the round wooden plate continue to spin, faster and faster.
This is the most primitive and simple artificial centrifuge in Li Ang's memory from another world, but the effect is not bad.
The centrifuge was invented by Saad Bhamla, a bioengineer at Georgia Tech.
A conventional centrifuge rotates a drum, creating centrifugal force that separates fluid into layers within a sample tube based on density. All centrifuges require electricity to run and are bulky and difficult to transport.
This artificial centrifuge, which imitates the principle of children's toys, can reach speeds of up to thousands or even 10,000 using only ropes and plastics. It is the fastest rotating object driven by human power. And no electricity is needed at all.
The original intention of the invention of the artificial centrifuge was to solve the problem of blood testing in Africa, strive to separate plasma in the shortest time, and identify the presence of malaria parasites in the blood.
But now, it can also be used to centrifuge vitamin B12 in pig liver solution.
Li Ang slowly pulled the wheel and asked the other four servants to imitate his own example, crush the pig liver and centrifuge it.
Ten minutes later, Li Ang stopped pulling the wheel and took out the eight glass test tubes on both sides of the wooden disc.
Pour all the supernatant into a casserole, and pour a small amount of clay into it, stirring constantly.
White clay has a large specific surface area and pore volume, has special adsorption capacity and ion exchange properties, and can adsorb vitamin B12.
When the white clay has almost absorbed the solution, Li Ang puts the white clay into a clean fine cloth bag and drains the water.
Then pour the white clay adsorbed with vitamin B12 into a porcelain bowl, add water, and stir vigorously for 20 minutes.
Finally, filter and pour out the stirred solution.
A high-content vitamin B12 solution was obtained—because vitamin B12 is easily decomposed when exposed to light, everything had to be done in a dark room.
"finished."
Li Ang looked at less than a bottle of clear liquid extracted from dozens of pieces of pig liver, breathed a long sigh of relief, and said to Yan Yundang: "This is the special substance extracted from pig liver.
This substance can relieve anemia and promote growth - it can be given to poultry and livestock first, mixed with bran and fed for a long time. It should promote the rapid growth of livestock to observe the effect. "
"No."
Yan Yundang was also very straightforward. After reading his set of procedures, he could see clearly that Li Ang did not add anything special to the solution.
Only the pig liver, water, and clay prepared by Yan Mansion would not be poisoned - and there was no need for it. He himself knew the severity of Yan Yundang's pernicious anemia.
"give it to me."
Yan Yundang took the bottle and said, "Can it be taken orally?"
"Just take it orally."
Li Ang nodded and said: "This medicine needs to be taken for life, once a day for seven days. After seven days, it should be taken every half a month, and no process can be changed.
If it takes effect successfully, you will feel significantly better within two or three days, your appetite will increase, and your tongue pain will subside. "
Oral vitamin B12 can also relieve pernicious anemia to a great extent, but the effect is not as good as intramuscular injection, so it must be taken in increasing amounts to prevent the recurrence of anemia.
"Should I take it for life..."
Yan Yundang grinned, "I don't know how many years I can live."
After saying that, he raised the bottle and drank it all in one gulp, wiping the corners of his mouth.
"Father,"
Yan Lin subconsciously asked: "What does it smell like?"
"What else could it smell like? It smells like blood."
Yan Yundang glanced at his son and muttered: "It's better than expected.
correct,"
He turned around and looked at Li Ang, "Little doctor Li, I heard that you were sentenced by Xi Yangyu to be unable to practice for life?"
