The Veterinary Drug Supervision Institute organized and implemented residual detection of three receptor agonists, namely clenbuterol, salbutamol, and ractopamine, in pig liver
Ability verification work for testing. A total of 68 laboratories from 22 provinces, municipalities, and autonomous regions across the country participated in this proficiency test, using the following tests
The main methods are liquid chromatography-mass spectrometry (LC-MS/MS) and gas chromatography-mass spectrometry (GC-MS). The results show that:
The laboratory satisfaction rates for clenbuterol, salbutamol, and ractopamine were 7.7% 8%, 89.6%, and 92.2%, with suspicious result rates of 11.1%, 4.17%, and 0%, respectively. The unsatisfactory result rates were 11.1%, 6.25%, and 7.84%, respectively