Abstract: A method for rapidly detecting pesticides based on thin-layer chromatography (TLC) and enzyme inhibition principles. The method includes the following steps: cutting a TLC plate into a rectangle, and using one end of the rectangle to contact a sample extract to form a pesticide residue separation area; covering the other end of the rectangle with a small piece cut from filter paper or glass fiber and fixing on a piece of enzyme inhibition reaction test paper to form a pesticide enrichment area; pasting a side of the enzyme inhibition reaction test paper away from the pesticide residue separation area with a piece of filter paper immobilized with a chromogenic agent to form a substrate color development area; and performing color reaction.

Abstract: In some implementations, a system may receive, from a first user, data associated with a new database entry to be added to a master database that is associated with multiple sets of users having different access permissions to entries in the master database. The system may write the data to a first repository, write an entry including the data to a master repository, and generate a record of the entry. The system may receive, from a second user, additional data associated with the new database entry. The system may write the additional data to a second repository, modify the entry in the master repository based on the additional data, and generate a record of the modified entry. The system may perform verifications and output a notification based on the verifications. The system may further output, to a public repository, the modified entry with at least one data value removed.

Abstract: In some implementations, a system may receive, from a first user, data associated with a new database entry to be added to a master database that is associated with multiple sets of users having different access permissions to entries in the master database. The system may write the data to a first repository, write an entry including the data to a master repository, and generate a record of the entry. The system may receive, from a second user, additional data associated with the new database entry. The system may write the additional data to a second repository, modify the entry in the master repository based on the additional data, and generate a record of the modified entry. The system may perform verifications and output a notification based on the verifications. The system may further output, to a public repository, the modified entry with at least one data value removed.

Abstract: In some implementations, a system may receive, from a first user, data associated with a new database entry to be added to a master database that is associated with multiple sets of users having different access permissions to entries in the master database. The system may write the data to a first repository, write an entry including the data to a master repository, and generate a record of the entry. The system may receive, from a second user, additional data associated with the new database entry. The system may write the additional data to a second repository, modify the entry in the master repository based on the additional data, and generate a record of the modified entry. The system may perform verifications and output a notification based on the verifications. The system may further output, to a public repository, the modified entry with at least one data value removed.