Negreira, N. <br/><br/>
Optimization of pressurized liquid extraction and purification conditions for gas chromatography-mass spectrometry determination of UV filters in sludge / 
N. Negreira ...[et al.] 
<br/><br/> YA2011 M03 
<br/><br/><label>Source: </label>Journal of Chromatography A 1218 (2) 2011 : 211-217 0021-9673