1. Liquid chromatography with ultraviolet absorbance detection for the analysis of tetracycline residues in honey
2. Determination of tetracyclines in milk samples by magnetic solid phase extraction flow injection analysis
3. CFR – Code of Federal Regulations, Title 21, Part 556, Tolerances for Residues of New Animal Drugs in Food, USA.
4. Council Regulation 2377/90/EEC, laying down a Community procedure for the establishment of maximum residue limits veterinary medicinal products in foodstuffs of animal origin;Off. J. Eur. Commun.,1990
5. Bulletin of Ministry of Agriculture, P.R. China, No. 235, Veterinary drug maximum residue limits in the food of animal origin, 2002, p. 12.