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Application of polylactic acid (PLA) in absorbable sutures
Application of polylactic acid (PLA) in absorbable sutures 1. Polylactic acid suture PLA (H-[OCHCH 3 CO]n-OH), also known as polylactide, is a type of polymer polymerized from the fermentation product of microorganisms, L-lactic acid (L stands for levorotatory) as a monomer. Toxic, non-irritating...Read more -
What is the significance of PLA absorbable sutures?
What is the significance of PLA absorbable sutures? In various operations in hospitals, surgical sutures are indispensable. If traditional non-degradable polyamide and polypropylene sutures are used to suture wounds, such sutures will remain in the body forever after the wound is healed. The tiss...Read more -
What to pay attention to when using glass test tubes
What to pay attention to when using glass test tubes 1. In order to facilitate shaking and prevent the phenomenon of overflowing outside the tube during boiling, the liquid medicine contained in the glass test tube should not exceed 1/3 of the volume. 2. The powdered drug can be fed into the pape...Read more -
What are the types of glass test tubes
What are the types of glass test tubes A glass test tube is a common and simple glass instrument used to hold a small amount of medicines for experiments in chemistry, physics, biology, medicine, agriculture, and industry. According to the different raw materials, glass test tubes can be divided ...Read more -
Can trifluoroethanol be packed in plastic test tubes?
Can trifluoroethanol be packed in plastic test tubes? Common PE, PS and PC disposable plastic test tubes can withstand trifluoroacetic acid and trifluoroethanol, but do not use containers containing fluoropolymers such as PVDF and PTFE, which will slowly corrode the fluoroplastics. Reference as a...Read more -
Why is it best to use plastic test tubes and beakers during DNA extraction?
Why is it best to use plastic test tubes and beakers during DNA extraction? Generally, when we do DNA extraction, we use chicken blood cells for extraction. The reason for using chicken blood cells is that the red blood cells of birds still have DNA when they mature; the red blood cells of mammal...Read more -
Let’s learn about reagent bottles together
Let’s learn about reagent bottles together The reagent bottle is a container specially used in the laboratory to hold various liquid and solid reagents, and the shape is mainly divided into narrow mouth and wide mouth. Because the reagent bottle is only used for storing reagents at room tem...Read more -
How to classify chemical reagents
How to classify chemical reagents There are thousands of chemical reagent products, which can be divided into general reagents, standard reagents, high-purity reagents, special reagents, indicators and test strips, organic synthesis reagents, biochemical reagents, clinical reagents, etc. Here are...Read more -
How to choose chemical reagents
How to choose chemical reagents During the experiment, according to the requirements of the experiment, such as the sensitivity and selectivity of the analytical method, the content of the analytical object and the requirements for the accuracy of the analytical results, the chemical reagents of ...Read more -
How to use chemical reagents
How to use chemical reagents When repacking chemical reagents in the laboratory, generally solid reagents are placed in wide-mouth bottles, liquid reagents or prepared solutions are placed in narrow-mouth bottles or drop bottles, and reagents that are easily decomposed by light (such as AgNO3, KM...Read more -
How to store different chemical reagents
How to store different chemical reagents The storage of chemical reagents is also an important task for laboratory personnel. It is not advisable to store too many flammable, explosive and toxic chemical reagents in a general laboratory, and should be purchased at any time according to the amount...Read more -
How to use liquid reagents
How to use liquid reagents (1) When taking liquid reagents from the dropper bottle, use the dropper in the dropper bottle. When using, first lift the dropper out of the liquid surface, squeeze the rubber head with your fingers to expel the air, then insert the dropper into the reagent, loosen you...Read more
