Electrochemical Analysis and Characterization of Psychoactive substances Glaucine and Tetrahydropalmatine

2005 ◽

Vol 3 (3) ◽

pp. 358-360 ◽

Cited By ~ 1

Author(s):

Jia Rong-Li ◽

Wang Cheng-Yang ◽

Zhu Bin

Keyword(s):

Reduction Method ◽

Direct Methanol Fuel Cells ◽

Electrochemical Analysis ◽

X Ray Diffraction ◽

X Ray ◽

Transmission Electron ◽

Platinum Particles ◽

Platinum Electrocatalyst ◽

Direct Methanol

Superfine mesocarbon microbead powders (SFMCMBs) as the new supports for platinum electrocatalysts were first investigated. The Pt∕SFMCMB electrocatalysts were prepared by an impregnation-reduction method, with hexachloroplatinic acid as the platinum precursor and formaldehyde as the reducing agent. The catalysts were characterized with x-ray diffraction (XRD), field emission gun transmission electron microscope (TEM), and electrochemical analysis. TEM photos showed the platinum particles were dispersed uniformly on the surface of SFMCMBs and there existed a little aggregation of platinum particles in the Pt∕SFMCMB catalysts. The TEM photos showed the existence of the platinum on the supports where the average platinum particle size were 4-6nm. The electrochemical analysis proved that SFMCMBs are excellent candidates to be used as the support of platinum electrocatalyst for methanol electrochemical oxidation as the potential catalyst candidate for direct methanol fuel cells (DMFCs).

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Rapid pre-filtering of amphetamine and derivatives by direct analysis in real time (DART)-differential mobility spectrometry (DMS)

Analytical Methods ◽

10.1039/c7ay00892a ◽

2017 ◽

Vol 9 (34) ◽

pp. 5044-5051 ◽

Cited By ~ 9

Author(s):

Ifeoluwa Ayodeji ◽

Timothy Vazquez ◽

Ronelle Bailey ◽

Theresa Evans-Nguyen

Keyword(s):

Real Time ◽

Direct Analysis ◽

Differential Mobility Spectrometry ◽

New Psychoactive Substances ◽

Psychoactive Substances ◽

Differential Mobility ◽

Rapid Separation

Herein, DART ionization was coupled to DMS to demonstrate their combined utility and compatibility for rapid separation and characterization of new psychoactive substances.

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Crystallographic characterization of three cathinone hydrochlorides new on the NPS market: 1-(4-methylphenyl)-2-(pyrrolidin-1-yl)hexan-1-one (4-MPHP), 4-methyl-1-phenyl-2-(pyrrolidin-1-yl)pentan-1-one (α-PiHP) and 2-(methylamino)-1-(4-methylphenyl)pentan-1-one (4-MPD)

Acta Crystallographica Section C Structural Chemistry ◽

10.1107/s2053229621013401 ◽

2022 ◽

Vol 78 (1) ◽

Author(s):

Marcin Rojkiewicz ◽

Piotr Kuś ◽

Maria Książek ◽

Joachim Kusz

Keyword(s):

Chemical Structure ◽

Crystallographic Data ◽

New Psychoactive Substances ◽

Monoclinic Space Group ◽

Psychoactive Substances ◽

Space Group ◽

X Ray ◽

X Ray Crystallography ◽

Analytical Laboratories

Cathinones belong to a group of compounds of great interest in the new psychoactive substances (NPS) market. Constant changes to the chemical structure made by the producers of these compounds require a quick reaction from analytical laboratories in ascertaining their characteristics. In this article, three cathinone derivatives were characterized by X-ray crystallography. The investigated compounds were confirmed as: 1-[1-(4-methylphenyl)-1-oxohexan-2-yl]pyrrolidin-1-ium chloride (1, C17H26NO+·Cl−, the hydrochloride of 4-MPHP), 1-(4-methyl-1-oxo-1-phenylpentan-2-yl)pyrrolidin-1-ium chloride (2; C16H24NO+·Cl−, the hydrochloride of α-PiHP) and methyl[1-(4-methylphenyl)-1-oxopentan-2-yl]azanium chloride (3; C13H20NO+·Cl−, the hydrochloride of 4-MPD). All the salts crystallize in a monoclinic space group: 1 and 2 in P21/c, and 3 in P21/n. To the best of our knowledge, this study provides the first detailed and comprehensive crystallographic data on salts 1–3.

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Detection and characterization of emerging psychoactive substances by ion mobility spectrometry

Drug Testing and Analysis ◽

10.1002/dta.1678 ◽

2014 ◽

Vol 7 (4) ◽

pp. 280-289 ◽

Cited By ~ 24

Author(s):

Sergio Armenta ◽

Salvador Garrigues ◽

Miguel de la Guardia ◽

Judit Brassier ◽

Manel Alcalà ◽

...

Keyword(s):

Ion Mobility Spectrometry ◽

Ion Mobility ◽

Psychoactive Substances

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Electrochemical Analysis and Novel Characterization of Porous Electrodes By Using Transmission Line Model for Lithium-Ion Batteries

ECS Meeting Abstracts ◽

10.1149/ma2014-04/4/611 ◽

2014 ◽

Keyword(s):

Transmission Line ◽

Lithium Ion Batteries ◽

Lithium Ion ◽

Electrochemical Analysis ◽

Porous Electrodes ◽

Transmission Line Model ◽

Line Model

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Synthesis and Characterization of Chrom-Free Dark Coating on AA6063 Aluminium Alloy with K2ZrF6

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.1053.421 ◽

2014 ◽

Vol 1053 ◽

pp. 421-428

Author(s):

Ting Yi Chen ◽

Ye Qi Fu ◽

Wen Lu ◽

Wen Fang Li

Keyword(s):

Corrosion Resistance ◽

Aluminium Alloy ◽

Corrosion Current ◽

Visual Assessment ◽

Electrochemical Analysis ◽

Conversion Coating ◽

Electrochemical Tests ◽

Excellent Corrosion Resistance ◽

New Treatment

A new passivation process has been developed for producing a chrome-free and coloured conversion coating on aluminium alloy AA6063 with K2ZrF6. The conversion coating obtained has a dark film, which enables visual assessment of the coating development and coating quality during processing. The colouring effect is a significant advantage over the zirconium based conversion coatings currently used in the industry, which are largely colourless. The new treatment process is simple and allows a uniform coating to be formed within a few minutes. The composition and the surface morphology of the coatings were characterized. The corrosion resistance of the coated samples was evaluated by electrochemical tests. Through electrochemical analysis, corrosion current of the coatings is low, it has excellent corrosion resistance; SEM, EDS and XRD are used to analyze the process coating.

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