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Back Cover: Analysis of Powders Containing Illicit Drugs Using Magnetic Levitation (Angew. Chem. Int. Ed. 2/2020)
Author(s) -
Abrahamsson Christoffer K.,
Nagarkar Amit,
Fink Michael J.,
Preston Daniel J.,
Ge Shencheng,
Bozenko Joseph S.,
Whitesides George M.
Publication year - 2020
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201915593
Subject(s) - levitation , cover (algebra) , polar , paramagnetism , diluent , magnetic levitation , cuvette , analytical chemistry (journal) , polarizer , chemistry , chemical engineering , materials science , chromatography , condensed matter physics , physics , organic chemistry , electrical engineering , engineering , magnet , optics , mechanical engineering , quantum mechanics , birefringence
A powdered mixture is separated into its five components in a non‐polar paramagnetic solution in a 2.5 cm high cuvette inside a magnetic levitation device. As shown by J. S. Bozenko, G. M. Whitesides et al. in their Research Article on page 874, the method separates the compounds based on their different densities in the linear density gradient formed in the solution. The levitating compounds (image was taken with crossed polarizers) are common polar adulterants and diluents used to cut illicit drugs.