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. 2019 Sep 11;6(9):191017. doi: 10.1098/rsos.191017

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© 2019 The Authors.

Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, provided the original author and source are credited.

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Figure 4. — CDFPs for detection of 4-chloroethcathinone. At pH 11.0 using a portable UV-lamp (254 nm) as the light source. (a) Sensitivity, (b) selectivity and (c) glucose tolerance. Inset to (a) PL images of CDFPs in the presence of various concentration of 4-chloroethcathinone. (b) The concentrations of the tested chemical are 25 mM, besides that are saturated for cocaine, heroin and ketamine. (c) w/w% of 4-chloroethcathinone in the presence of glucose. A smartphone was used to record the PL images.