Why not take a look at the latest issue of Analyst?
Featured on the front cover is a paper on the use of ambient ozone for the assignment of double bond position in unsaturated lipids. Stephen Blanksby and colleagues from the University of Wollongong, Australia, have made use of the fact that unsaturated lipids react with the low concentrations of ozone present in normal laboratory air.
Unsaturated lipids are deposited onto thin layer chromatography plactes and allowed to undergo ozonolysis. The products are then analysed by desorption electrospray ionization mass spectrometry (DESI-MS), providing unambiguous assignment of double bond positions without the need for instrument modifications.
Using ambient ozone for assignment of double bond position in unsaturated lipids
Shane R. Ellis, Jessica R. Hughes, Todd W. Mitchell, Marc in het Panhuis and Stephen J. Blanksby
Analyst, 2012, 137, 1100-1110
The back cover highlights research from Xiangying Sun and co-workers at Huaqiao University, Xiamen, China. They have developmed a novel dual-fluorescence quantum dot (QD) nanocomposite with tuning emission wavelength and fluorescence intensity which can selectively sense mercury ions (Hg2+) with a detection limit of 5.6 nM. They propose this can e used for the qualitative and semi-quantitative colorimetric analysis of Hg2+.
Dual-emission quantum dots nanocomposites bearing an internal standard and visual detection for Hg2+
Xiangying Sun, Bin Liu and Yibang Xu
Analyst, 2012, 137, 1125-1129
Both articles are free to access for 6 weeks.
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