Simultaneous determination of ultraviolet filters in aqueous samples by plunger-in-needle solid-phase microextraction with graphene-based sol–gel coating as sorbent coupled with gas chromatography–mass spectrometry

2012 ◽  
Vol 742 ◽  
pp. 67-73 ◽  
Author(s):  
Hong Zhang ◽  
Hian Kee Lee
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