TY  - SER
AU  - Guo,Liang
TI  - Development and validation of a liquid chromatographic / tandem mass spectrometric method for determination of chlortetracycline, oxytetracycline, tetracycline, and doxycycline in animal feeds
N1  - YA2013 M03
ISSN  - 1060-3271
Sources  - Journal of AOAC International
Sources  - 95 (4) 2012 : 1010-1015
ER  -