Choi, M.J. Song, E.Y. Kim, S. Choi, J. Lho, D.-S. Park, J. 2024-01-21T23:02:42Z 2024-01-21T23:02:42Z 2021-09-02 1993-01 0253-6269 https://pubs.kist.re.kr/handle/201004/146324 A new device to detect methamphetamine (MA), amphetamine(A) and its metabolites in urine was developed using the paper strip method and the test tube method of dry chemical reagents. The reagent containing tetrabromophenolphthalein ethyl ester (TBPE) and borax. For the TBPE paper strip method, a device was prepared with a window at each end of the reagent paper strip; one window is for the sample application, and the other window is for the methylene chloride. The diffused sample from one window reacts with reagent in the paper and produces color at the point where it meets with methylene chloride which has diffused form the other side. A positive sample produces as red-purple color and the negative sample a greenish color, with a detection limit of 5？10 ppm. The result can be obtained within one minute. For the TBPE test tube method which contains dry reagents, the detection limit is 5 ppm and the result can be obtained within 30 seconds, however the carry-on is not as convenient as the paper strip method. The performance of both methods were evlauated by comparing with the results of gas chromatography (GC) and fluorescence polarization immunoassay (FPIA). The results were proven that both methods were useful as primary screening reagents to detect MA in urine and in dry powder. ？ 1993, The Pharmaceutical Society of Korea. All rights reserved. English amphetamine amphetamine derivative codeine diamorphine ephedrine methamphetamine norephedrine article colorimetry controlled study drug identification fluorescence polarization immunoassay gas chromatography human urinalysis A simple device of the dry tetrabromophenolphthalein ethyl ester reagent strip for the detection of methamphetamine Article 10.1007/BF02974487 1 Archives of Pharmacal Research, v.16, no.3, pp.227 - 230 Archives of Pharmacal Research 16 3 227 230 scopus 2-s2.0-0027527686 Article amphetamine amphetamine derivative codeine diamorphine ephedrine methamphetamine norephedrine article colorimetry controlled study drug identification fluorescence polarization immunoassay gas chromatography human urinalysis Dry color method Methamphetamine detection On-spot test Strip device