Common techniques of molecular cloning

1. Purification of nucleic acids In all operations of molecular cloning, the most basic operation is the purification of nucleic acids. The key step is to remove protein, usually only phenol / chloroform. Chloroform can be used to extract the nucleic acid solution. This extraction can be performe-----!

Screen printing fountain pen decoration process

With the development of the pen industry and the needs of the fountain pen market and export services, the fountain pen is required to have internal qualities such as fluency in writing, and to be in line with the fountain pens of the world's brand Duke, Picasso, etc. for decoration in the sha-----!

RP-HPLC determination of hyperoside in Burnet

【Abstract】 Objective To establish an HPLC method for the determination of hyperoside in Sanguisorba officinalis. Method RP-HPLC was used for determination, C18 column, mobile phase was methanol-0.2% phosphoric acid solution (46:54), pH was adjusted to 3.0 with triethylamine, flow rate-----!

Swallowing mechanism model

Swallowing mechanism model The model is to help students learn the principle of swallowing mechanism, and at the same time can learn the emergency treatment method for patients with swallowing, and learn how to help the elderly prevent pneumonia caused by swallowing. Product main function: â-----!

What is ICC color management

Many design, publishing, and printing companies are using color management systems today. Although you may not know what color management is, you may be using it yourself. People can enjoy consistent and consistent colors from beginning to end in the workflow, and most of them are using systems ba-----!