Layer-Induced Sensitivity Enhancement in Planar Chromatography–Bioluminescence–Mass Spectrometry: Application to Alkaloids

HPTLC-Bioluminescent Bioautography Screening of Herbal Teas for Adulteration with Hypolipidemic Drugs

“…Therefore, they were hardly visible on the HPTLC plate, necessitating derivatization. Different from conventional chemical derivatization reactions, bioautography based on whole cell displayed strong dependence on layer materials, which had been experimentally evidenced in the HPTLC analysis of antibiotics [ 25 ] and alkaloid [ 26 ]. Such layer-induced sensitization can be employed to strength the detectability of analyte.…”

Interpol review of controlled substances 2016–2019

“…Plant Materials (Multiple Plants in Single Studies): 2016 review of the immunoassay challenges in detection of unusual substances such as Magic Mushroom, Peyote Cactus, Khat, and Solvent Abuse [ 539 ]; HPTLC -ESI-MS for profiling of alkaloid-rich herbal drugs [ 833 ]; DART-HRMS for spectral profiling of biological material including Mitragyna speciosa (Kratom) and Datura (Jimsonweed) [ 834 ]; GC-MS determination of the myristicin, psychoactive, hallucinogenic substance from plant material [ 835 ]; review of adulterants in herbal medications [ 836 ]; 2017 development and validation of a tetraplex multiplex real-time PCR assay used to simultaneously identify morning glory, jimson weed, Hawaiian woodrose, and marijuana [ 837 ]; spectrum-effect relationships between HPLC-DAD fingerprint and analgesic activity of Anisodus tanguticus (Maxim.) Pascher (Solanaceae) (AT) root [ 838 ]; supercritical fluid extraction of carbon dioxide extraction method to isolate bioactive components from variety of plant materials [ 839 ]; review of herbal highs [ 537 ]; identification of synthetic indazole-3-carboxamide cannabinoid (CUMYL-4CN-BINACA) in seized plant material using LC-HR/MS, GC-EI/MS, NMR spectroscopy and FTIR [ 840 ]; 2018 anti-nociceptive mechanisms of flavonoids-rich methanolic extract from Terminalia coriacea (Roxb.)…”

“…Ephedrines: 2016 fluorescence resonance energy transfer (FRET) assay for detection of ephedrine [ 970 ]; a novel sensor for the determination of ephedrine [ 971 ]; evaluation of a molecularly imprinted polymer liquid chromatography column for the separation of ephedrine enantiomers [ 972 ]; determination of five alkaloids including ephedrine, norephedrine, and methylephedrine by HPLTC-ESI-MS [ 833 ]; fluorescence-detected circular dichroism spectroscopy of ephedrine [ 973 ]; differential mobility spectrometry for the differentiation of ephedrine and pseudoephedrine [ 974 ]; detection of ephedrine by HPLC, CE and GC-MS [ 970 ]; LC-MS/MS method for quantification of five ephedrines in supplements [ 975 ]; 2017 a new portable quantum cascade laser spectrometer to perform the automated recognition of ephedrines based on their vibrational absorptions [ 976 ]; detection of controlled amphetamines and ephedrines based on Laser Infrared Spectra [ 977 ]; Two-dimensional correlation spectroscopy for the identification of ephedrine and pseudoephedrine present in illegally adulterated slimming herbal products [ 978 ]; hydrophilic interaction LC-MS/MS for the analysis of ephedrine in a pharmaceutical solid dosage form available on the internet [ 979 ]; 2018 HPLC method for the simultaneous analysis of ephedrine HCl, guaifenesin and synthetic additives in syrup samples [ 980 ]; GC-MS method for quantification of ephedrine [ 981 ]; chiral and stable isotope ratios of ephedrine synthesized via the Akabori-Momotani reaction [ 982 ]; molecularly imprinted polymer for the detection of ephedrine [ 983 ]; 2019 sensor for detection of ephedrine in liquid and solid samples [ 984 ]; identification and characterization of three compounds obtained from ephedrine (Ephedrone (methcathinone) hydrochloride, N-acetylephedrine and N-acetylephedrone) using GC-MS, NMR, IR, RAMAN and X-ray Crystallography [ 275 ].…”

HPTLC screening of saccharin in beverages by densitometry quantification and SERS confirmation

“…[14][15][16] As a exible separation platform, HPTLC can realize unlimited compatibility with off-line detection technologies. At present, HPTLC is not only combined with densitometry or camera, 17,18 but also effectively coupled to state-of-the-art detectors, such as MS, 19 biosensors, 20 and surface enhanced Raman spectroscopy (SERS). 21 SERS can give ngerprint-like structural information of the targeted compounds.…”