News
-
What to pay attention to when using glass test tubes
What to pay attention to when using glass test tubes1. 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 paper slo...Read more -
What are the types of glass test tubes
What are the types of glass test tubesA 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 into...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 appro...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 mammals ha...Read more -
Let’s learn about reagent bottles together
Let’s learn about reagent bottles togetherThe 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 temperature, i...Read more -
How to classify chemical reagents
How to classify chemical reagentsThere 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 jus...Read more -
How to choose chemical reagents
How to choose chemical reagentsDuring 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 the ...Read more -
How to use chemical reagents
How to use chemical reagentsWhen 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, KMnO4,...Read more -
How to store different chemical reagents
How to store different chemical reagentsThe 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. In...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 your fi...Read more -
How to use solid reagents
How to use solid reagents(1) Use a clean and dry spoon. The two ends of the medicine spoon are two large and small spoons, a large spoon is used when taking a large amount of solids, and a small spoon is used when taking a small amount of solids. Special key should be used. The used medicine spoon m...Read more -
Storage of chemical reagents in quality laboratory
Storage of chemical reagents in quality laboratory1 The storage of chemical reagents is the responsibility of special personnel.2 The custodian should be a professional and technical person with certain professional knowledge and a high sense of responsibility to ensure that chemical reagents are st...Read more
