In-depth research into the precise evaluation of enzymatic digestion efficiency and the
selection of a suitable deuterium-labelled internal standard remains a gap in the accurate …

Illegal drug residues in animal derived foods are closely related to human's life and health.
Studies on illegal drug residues and the metabolism, such as β 2-agonists in animals have …

A robust and sensitive methodology, utilizing GC-MS, for the identification and quantitation
of seven β-agonist residues (mabuterol, clenbuterol, brombuterol, mapenterol, clenpenterol …

In this work, 37 growth promoters were quantitatively determined in bovine urine using a
QuEChERS approach with acetonitrile, NaCl, and MgSO4: PSA for sample extraction. The …

In this work, a GC-MS/MS method was developed for the determination of anabolic-agent
residues in bovine urine. The optimized sample preparation was as follows: enzymatic …

The illegal use of clenbuterol (CL), as a growth promoter in animal feeding, is banned in the
majority of countries across the world, such as the European Union and China. In this study …

In this work, a magnetic graphene oxide covalent organic framework composite was
synthesized and utilized as an effective sorbent for magnetic solid phase extraction. A …

Zilpaterol is a β2‐adrenergic agonist and a repartitioning agent that has a high potential for
abuse in equine performance athletes. Analysis of zilpaterol in hair is an alternative …

The obstacle for the development of a reliable electrochemical technique to trace
diethylstilbestrol (DES) lies in the complex electrochemical behavior of this illicit hormone …

Problems with “clenbuterol”, a synthetic β 2-adrenergic stimulant that includes clenbuterol,
ractopamine, and albuterol, have been increasing in recent years. This article focuses on the …