Sunday, December 28, 2008

Traces of Tetracycline Found in 2 of 30 Chinese Propolis Samples

Multiresidue Determination of Tetracycline Antibiotics in Propolis by Using HPLC-UV Detection with Ultrasonic-Assisted Extraction and Two-Step Solid Phase Extraction
Food Chemistry, Article in Press

An analytical method in propolis was developed and validated for the determination of four tetracyclines (TCs) by high performance liquid chromatography (HPLC) for the first time…

The recoveries of the 4 TCs for propolis samples spiked with 100-500 ng·g-1 were in the range of 61.9-88.5 % and the R.S.Ds were between 4.80 and 13.2 %. Traces of tetracycline were found in two out of thirty analyzed real samples.

No comments: