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Experimental encyclopedia

2018.10.09

Cooling methods commonly used in the laboratory

1, running water cooling. This method can be used for liquids that need to be cooled to room temperature. The object to be cooled is directly cooled with running tap water.

Cooling methods commonly used in the laboratory

2018.10.09

Burning of laboratory solid matter

The operation of heating a solid substance to a high temperature to achieve dehydration, decomposition or removal of volatile impurities

Burning of laboratory solid matter

2018.10.09

Direct heating of chemical laboratory liquids

The heated liquid in the experiment is stable at a higher temperature without decomposing, and when there is no risk of ignition

Direct heating of chemical laboratory liquids

2018.10.09

People's Republic of China Agricultural Products Quality and Safety Law

Article 1 This Law is enacted to ensure the quality and safety of agricultural products, safeguard public health, and promote the development of agriculture and rural economy.

People's Republic of China Agricultural Products Quality and Safety Law

2018.10.09

About GC troubleshooting

GC is often used by us because residual solvents are a must-test item, and many raw materials need to be detected by GC.

About GC troubleshooting

2018.10.09

Solving common problems in capillary analysis

Possible causes and exclusions to be used

Solving common problems in capillary analysis

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