GB23200.8-2016 Gas Chromatography-Mass Spectrometry

Pang Guofang et al.

Main steps: Weigh 20g samples of fruits and vegetables, homogenize them with 40mL acetonitrile , and then salt out and centrifuge

GB23200.

Scoring requirements for each link of the pesticide residue testing skills competition

In recent years, local agricultural departments have inspired the enthusiasm of agricultural product quality and safety testing technicians to learn professional theories and technology, accelerate the training of high-skilled personnel for agricultural product quality and safety testing, promote the improvement of the ability of basic-level testing technicians, and give better play to the testing system.

(1) Theoretical examination scope

(2) Exam question type

The theoretical knowledge test adopts the closed-book method, the time is 90 minutes, and the question types include multiple-choice questions, judgment questions, short answer questions and essay questions

(3) The content of the game

The final focus will be on the operation and use of relevant large-scale quantitative testing equipment, the principles and use of gas chromatography, liquid chromatography, post-column derivatization instruments, preparation of instrument conditions (including installation of chromatographic columns, relining tubes, etc.

(4) Combined with NY/T 761 methods and long-term testing and training experience, some reference scoring items (Table 28) and testing items, methods and reference instruments (Table 2-9) are summarized for reference

Table 2-8 Reference scoring items

Table 2-9 Test items, methods and reference instruments