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Summary of microbe sampling, sample preparation techniques and dilution, inoculation and culture met
Summary of microbe sampling, sample preparation techniques and dilution, inoculation and culture methods!(2)1.Inoculation method of sample solution:1.1. Pull out the suction tube along the upper wall of the tube, blow and wash the suction ear ball beside the flame, insert the suction ear ball at the...Read more -
Summary of microbe sampling, sample preparation techniques and dilution, inoculation and culture met
Summary of microbe sampling, sample preparation techniques and dilution, inoculation and culture methods!(1) 1.Sampling preparation1.1. When sampling, the sample must be representative of the product.Frozen samples retrieved from the workshop should be thawed as required, dry food can be placed in t...Read more -
Use of extraction and separation funnel
Use of extraction and separation funnel Extraction is one of the common operations for separating and purifying organic compounds. The application of extraction allows the extraction of desired substances from liquid or solid mixtures, the former called “liquid-liquid extraction” and the latter call...Read more -
How to use separatory funnel?
How to use separatory funnel?The main purpose of the separatory funnel:①Separate two liquids that are stratified and do not react②Extract a certain component from the solution③Wash the product with water or alkali or acid④ Replace the dropping funnel and add reagents dropwisePoints to note when usin...Read more -
Distracted by these “little troubles” in the laboratory? Look here, there are good ideas!
Distracted by these “little troubles” in the laboratory? Look here, there are good ideas!In the laboratory, in addition to the first problem “washing the bottle”, everyone often encounters some large and small problems, such as the bottle stopper sticking and not opening, emulsification during liqui...Read more -
The correct way of using the measuring pipette
The correct way of using the Volumetric PipetteAbstract: Volumetric Pipette is a gauge used to accurately move a certain volume of solution. A Volumetric Pipette is a dispensing instrument used only to measure the volume of the solution it releases. It is a long, thin glass tube with an expanded par...Read more -
These factors can affect the accuracy of the glass gauge in the laboratory
These factors can affect the accuracy of the glass gauge in the laboratory1.The temperature of the gaugeThe capacity of the gauge varies with temperature. The temperature at which a gauge is measured in or out of its nominal capacity is the standard temperature. The body thermal expansion coefficien...Read more -
To grow cells, you also need to pay attention to these details!（2）
To grow cells, you also need to pay attention to these details!（2）Selection of cryopreservation mediumThe freezing medium must be selected when freezing cells. The freezing medium should contain cryoprotectants such as DMSO or glycerol.It is also possible to use specially formulated complete freezin...Read more -
To grow cells, you also need to pay attention to these details!（1）
To grow cells, you also need to pay attention to these details!（1）Cell regeneration is a heart-stirring thing. You have to treat it as carefully as a child. Take care of her and take care of her. If you pay attention to these issues when you take care of it, your cells will grow better. Let’s talk a...Read more -
We are also doing PCR experiments. Why are the results always different from others?
We are also doing PCR experiments. Why are the results always different from others?In the laboratory, look at other people’s PCR, amplification efficiency is high, electrophoresis strip perfect, and look at their own, hard to do for a long time, feel the reaction is very good, the result of a false...Read more -
Do yo know the correct way of using the Volumetric Pipette?
Do yo know The correct way of using the Volumetric Pipette?Abstract: Volumetric Pipette is a gauge used to accurately move a certain volume of solution. A Volumetric Pipette is a dispensing instrument used only to measure the volume of the solution it releases. It is a long, thin glass tube with an ...Read more -
How to choose consumables for PCR laboratory (2)
How to choose consumables for PCR laboratory (2)The spread of the new crown epidemic in some areas has become a matter of most concern to everyone. The detection of the new coronavirus currently mainly uses the fluorescent quantitative PCR method, and the completion time of a nucleic acid test repor...Read more
