Chapter 166 Teacher Chen Feng's course on making injection solution
"This is the basic distilled water we use to make the injection. Next, we can add the corresponding drug ingredients for preparation."
Teacher Chen Feng held up the bottle of clear, transparent, impurity-free distilled water and showed it to the students. His voice was steady and powerful, echoing clearly in the quiet classroom.
The students watched the teacher's operation intently, their eyes sparkling with curiosity and concentration, and they kept recording the key steps and points in their notebooks. They seemed to be in a mysterious and crucial experimental journey, and every detail could be the key to saving lives in the future.
Teacher Chen Feng placed the bottle of pure distilled water on a special table nearby. The light on the table gently sprinkled on the bottle, reflecting a charming light. Then, he picked up a reagent bottle marked "Redu Ning". The reagent bottle seemed particularly precious in his hand, as if he was holding the code to save lives.
"Next, we need to accurately measure the Redunning solution. Look, this is a high-precision electronic pipette that can ensure the accuracy of the measurement of the solution."
Teacher Chen Feng skillfully adjusted the scale of the pipette while speaking. His fingers were flexible and precise, and every subtle movement was full of professionalism and confidence. The pipette seemed to have become a handy tool in his hands, and he stared closely at the scale to ensure that every adjustment was just right.
He gently inserted the tip of the pipette into the Retoxin reagent bottle, slowly pressed the button, and drew out the right amount of liquid medicine. His movements were so gentle as if he was protecting the most precious treasure in the world, fearing the slightest mistake.
"Everyone, please pay attention. When absorbing the medicine liquid, the speed must be uniform and no bubbles should be generated, otherwise it will affect the accuracy of the dosage." The teacher's eyes were focused and serious, as if conveying a mission that could not be ignored to the students.
Afterwards, Teacher Chen Feng carefully injected the absorbed Reduning liquid into a sterile container filled with distilled water. His arms were steady and firm, and every movement was smooth and natural.
"When injecting the medicine, pour it slowly along the wall of the container to avoid splashing and producing excessive foam." The teacher's movements were gentle and steady. The medicine flowed slowly along the wall of the container like a quiet stream without stirring up a ripple.
After injecting the liquid medicine, he picked up a special stirring rod and began to stir it slowly. The stirring rod rotated at a constant speed in the liquid medicine, as if weaving a delicate painting.
"The stirring speed and time are very important. It won't work if it's too fast or too slow. Now we stir at 30 revolutions per minute for 5 minutes to make the liquid medicine fully mixed." Teacher Chen Feng continued to explain while controlling the stirring rhythm. His eyes never left the container, always paying attention to the changes in the liquid medicine.
After 5 minutes, the teacher stopped stirring, took out a small sample bottle, and extracted some of the mixed liquid from it. The sample bottle looked small and delicate in his hand, as if it carried everyone's expectations.
"This step is sampling and testing. We need to use this universal detector to detect whether the concentration and purity of the drug solution meet the standards. This universal detector is a treasure. It can not only detect various types of medicines, such as common injections and oral medications, but also accurately analyze nutrient solutions. Even if it is a nutrient that we extract from plants ourselves in the wild, it can give accurate test results. Moreover, it is essential in high-tech equipment such as aircraft, mecha spacecraft, and aircraft carriers, and plays an important role in ensuring the health of personnel." Teacher Chen Feng introduced carefully.
"Wow, this instrument is amazing!"
"How amazing!"
The students couldn't help but exclaim in surprise.
Teacher Chen Feng placed the sample bottle into the detector and stared at the data displayed on the screen.
"Well, the test results this time are good and meet the standards for Retoxin Injection. But if the test fails, we will still need to check and adjust various operating steps." The teacher had a satisfied look on his face, and there was a hint of relief and pride in that smile.
At this moment, the lights in the classroom suddenly flickered a few times, and the atmosphere instantly became tense. The students couldn't help but exclaim, worried that this would affect the experiment. Teacher Chen Feng, however, remained calm. He quickly checked the connection and power supply of the instrument and comforted everyone, saying, "Don't panic, students, this is just a small episode, let's continue."
Then, the teacher picked up a reagent bottle marked "Ambroxol" and said, "Next, let's look at the preparation of Ambroxol Injection. First, prepare the basic distilled water as before."
Teacher Chen Feng accurately measured the distilled water again and poured it into another sterile container. "Ambroxol injection is mainly used to remove phlegm and has an important therapeutic effect on respiratory diseases." He explained while operating.
He used the same skilled technique to adjust the pipette, draw up an appropriate amount of ambroxol solution, and slowly inject it into the distilled water.
"You still have to be careful when injecting the medicine to ensure its accurate and even distribution." The teacher's voice was steady and firm, allowing the students to gradually calm down and concentrate on their studies again.
Afterwards, the teacher picked up the stirring rod again and stirred it according to the prescribed speed and time.
"The purpose of stirring is to allow the liquid medicine to fully blend and form a stable and uniform solution."
After the stirring was completed, the teacher took samples for testing as usual. "Every step must be taken seriously, and any slight deviation may affect the quality and efficacy of the liquid medicine." His eyes were full of rigor and seriousness.
This time, the test results were still satisfactory. The students couldn't help but breathe a sigh of relief, and at the same time they were full of admiration for the teacher's superb skills and professional attitude.
The students watched the teacher's every move with full concentration and listened carefully to the explanation, fearing to miss any key details. The whole class was immersed in a strong academic atmosphere, and everyone absorbed valuable nutrition in this feast of knowledge.
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