Applied Sciences
June 22, 2018
Bo-Hong Chen, Ju-Tsung Liu, Hung-Ming Chen et al.
10 citations
Characteristic mass fragmentation of 20 phenethylamine/tryptamine standards were investigated and compared by means of matrix assisted laser desorption/time-of-flight mass spectrometry (MALDI/TOFM), gas chromatography–electron ionization–mass spectrometry (GC-EI/MS) and liquid chromatography–electrospray ionization/mass spectrometry (LC-ESI/MS) methods. As a result, three characteristic peaks...
Journal of Separation Science
January 9, 2009
M Wang, Chih‐hsin Tsai, Wei‐ya Hsu et al.
11 citations
Abstract The optimal separation conditions and online sample concentration for N , N ‐dimethyltryptamine (DMT) and related compounds, including α‐methyltryptamine (AMT), 5‐methoxy‐AMT (5‐MeO‐AMT), N , N ‐diethyltryptamine (DET), N , N ‐dipropyltryptamine (DPT), N , N ‐dibutyltryptamine (DBT), N , N ‐diisopropyltryptamine (DiPT), 5‐methoxy‐DMT (5‐MeO‐DMT), and 5‐methoxy‐ N , N ‐DiPT...
Journal of chromatography. A
February 15, 2008
Man-Juing Wang, Ju-Tsung Liu, Hung-Ming Chen et al.
12 citations
Nine tryptamines, including alpha-methyltryptamine (AMT), N,N-dimethyltryptamine (DMT), 5-methoxy-alpha-methyltryptamine (5-MeO-AMT), N,N-diethyltryptamine (DET), N,N-dipropyltryptamine (DPT), N,N-dibutyltryptamine (DBT), N,N-diisopropyltryptamine (DIPT), 5-methoxy-N,N-dimethyltryptamine (5-MeO-DMT), and 5-methoxy-N,N-diisopropyltryptamine (5-MeO-DIPT) were selected as model compounds....
Talanta
January 15, 2008
Bo-Hong Chen, Ju-Tsung Liu, Wen-Xiong Chen et al.
32 citations
Certain characteristic fragmentations of tryptamines (indoleethylamine) and phenethylamines are described. Based on the GC-EI/MS, LC-ESI/MS and MALDI/TOFMS, the mass fragmentations of 13 standard compounds, including alpha-methyltryptamine (AMT), N,N-dimethyltryptamine (DMT), 5-methoxy-alpha-methyltryptamine (5-MeO-AMT), N,N-diethyltryptamine (DET), N,N-dipropyltryptamine (DPT),...
Journal of chromatography. B, Analytical technologies in the biomedical and life sciences
November 25, 2004
Yu-Chih Chiu, Shiu-Huey Chou, Ju-Tsung Liu et al.
18 citations
The bioactivity of 2,5-dimethoxy-4-ethylthiophenethylamine (2C-T-2) on nitric oxide (NO) production and the proliferation of spleen and thymus lymphocytes to mitogen stimulation in mice are reported for the first time. NO production by T and B lymphocytes in spleen and T cells in the thymus of mice decreased after the oral administration of 2C-T-2. This indicates that 2C-T-2 intake may perturb...
Journal of chromatography. B, Analytical technologies in the biomedical and life sciences
December 25, 2003
Li-Chan Lin, Ju-Tsung Liu, Shiu-Huey Chou et al.
29 citations
A simple and specific method based on gas chromatography-selected ion monitoring-mass spectrometry (GC-SIM-MS) for the analysis of in vivo metabolism of 2,5-dimethoxy-4-ethylthiophenethylamine (2C-T-2) in rats is described. Three male rats were administered 20 mg/kg of 2C-T-2 by intra-peritoneal injection, and 24 h urine fractions were collected before and after the administration for analysis....
Electrophoresis
March 1, 2003
Ching Fang, Ju-Tsung Liu, S.‐s. Chou et al.
27 citations
Abstract The separation and on‐line concentration of lysergic acid diethylamide (LSD) in mouse blood was achieved by means of capillary electrophoresis/fluorescence spectroscopy using sodium dodecyl sulfate (SDS) as the surfactant. Techniques involving on‐line sample concentration, including sweeping micellar electrokinetic chromatography (sweeping‐MEKC) and cation‐selective exhaustive...
Talanta
October 16, 2002
Ching Fang, Ju-Tsung Liu, Cheng-Huang Lin
The principal advantage of the use of Shopl'skii effect (low temperature spectrum) is that spectral sharpening occurs both in absorption and emission. However, thus far using the technique of capillary electrophoresis/low temperature fluorescence spectroscopy (CE/LTFS) either at 77 or 4.2 K remains difficult to obtain an on-line spectrum, if the analyte is present at low concentration. This...