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08/20/2019

Laboratory chemicals and reagent management

Laboratory chemicals and reagent management A. Storage of chemical reagents and pharmaceuticals 1. The chemical storage room should comply with relevant safety regulations and have safety measures such as fire prevention and explosion protection. The indoors should be dry and well ventilated. The temperature should not exceed 28 °C. The lighting should be explosion-proof. 2. […]

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08/11/2019

Factors affecting the accuracy of laboratory glassware

In general, improper calibration and use are the main causes of errors. Careful operation in this correct way can minimize the operational error and achieve the highest accuracy.   1. Temperature of the measuring device The capacity of the gauge changes with temperature. The temperature at which the gauge is metered in or out of […]

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08/07/2019

Laboratory safety protection knowledge

In the laboratory, corrosive, toxic, flammable, explosive and various types of reagents and easily broken glass instruments and various electrical equipment are often used. In order to ensure the personal safety of the inspectors and the normal operation of the laboratory, the inspectors should have safe operating knowledge and abide by the laboratory safety rules. […]

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07/25/2019

CDC laboratory equipment and use management

CDC laboratory equipment and equipment: Microbial filtration detection system Radioimmunoassay analyzer PCR instrument Electrophoresis system Microplate reader Automatic washing machine Multi-head pipette (set) Air microbial sampler Microbial membrane filtration device in water Clean bench Biological safety cabinet Microscope Biodissection mirror Fluorescence microscope Dark field microscope Automatic gel imager Low temperature high speed centrifuge Ordinary centrifuge […]

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07/21/2019

How to improve accuracy of experiment

Sources of error and ways to improve the accuracy of the analysis results: First, the source of error Negligible error Negligible errors are also called gross errors. The obvious distortion of the measurement results is caused by undue errors in the measurement process. For example, if the standard solution exceeds the shelf life, the concentration […]

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07/17/2019

How to choose laboratory glassware and equipment

Excellent transparency and chemical stability, and its wide range of raw materials, low prices and manufacturing processes, so a variety of products made of glass are also widely used in people’s daily lives. Glass instruments are also made of glass and are widely used in chemical laboratories, medical laboratory, biological laboratories and teaching laboratories. Here […]

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07/13/2019

Laboratory glassware type and classification management

Laboratory glassware is an indispensable tool for chemical analysis work, and it is a consumable item commonly used in laboratories and is not valued by people. In normal work, its expenditure is second only to medicines. Reasonable management and use of glassware not only can effectively ensure normal work, but also reduce losses and save […]

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07/10/2019

Types of chemical glassware Production methods of glassware commonly used in laboratories

Glass has been widely used in modern times and has always been a product with a large market demand. By using specific treatment methods, we can make full use of the characteristics of the glass, and can make up for its defects, no longer subject to the natural properties of the glass. For example, laminated […]

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07/07/2019

How to deal with fogging of optical instruments?

The high-load use of instruments and equipment is often prone to accidental failures. In particular, if optical instruments are fogged due to improper maintenance and use, they cannot function properly and cause obstacles in their work. Preventing optical instruments from fogging increases our experimental efficiency. At present, domestic enterprise equipment maintenance management generally stays in […]

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07/04/2019

How to determine the instrument calibration cycle?

The calibration period of the laboratory analysis measuring instrument is affected by many factors such as the frequency of use, accuracy requirements, use environment, and performance. It can be said that determining the calibration cycle is a complicated task. Many analysts often have questions about the following issues, such as how to determine the principles […]

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06/27/2019

Tips for using common equipment in organic laboratories

1. Common instruments, equipment and application scope of organic chemistry experiments The glass instruments, metal appliances, electrical instruments and some other equipment used in organic chemistry experiments are introduced as follows: (1)glass instrument Organic experimental glass instruments (see pic 2.1, pic 2.2), according to the standard of the mouth plug and grinding, and divided into […]

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06/07/2019

Gas chromatograph cleaning and maintenance

Gas chromatography often runs 24 hours due to the need for continuous production. It is difficult to have the opportunity to systematically clean and maintain the instrument. Once there is a suitable opportunity, it is necessary to thoroughly clean and maintain the key components of the instrument as much as possible according to the actual […]

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05/22/2019

How to choose the right PSI freezing point osmometer

First, what is osmotic pressure? The semipermeable membrane is separated, one of which is the solvent water, and the other is the solution, and the water permeates through the semipermeable membrane to the solution side. The pressure applied to the solution side to prevent the movement of water is called the osmotic pressure. The reason […]

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