Development of a solventless stir bar sorptive extraction/thermal desorption large volume injection capillary gas chroma...
Published in Open Chemistry
Synergistic Supramolecular Effect on the Electro-Oxidation of Biological Relevant Molecules: A Novel Sensor for Simultan...
In this paper a novel supramolecular strategy to improve the efficiency of a voltammetric sensor to determine two biologically relevant molecules (epinephrine (EP) and uric acid (UA)) is presented. The strategy is based on the use of a glassy carbon electrode modified with a copper(II) complex ([Cu(H2dimpy)Cl]PF6) adsorbed on multi-walled carbon na...
Terpenoids, Cannabimimetic Ligands, beyond the Cannabis Plant.
Published in Molecules (Basel, Switzerland)
Medicinal use of Cannabis sativa L. has an extensive history and it was essential in the discovery of phytocannabinoids, including the Cannabis major psychoactive compound-Δ9-tetrahydrocannabinol (Δ9-THC)-as well as the G-protein-coupled cannabinoid receptors (CBR), named cannabinoid receptor type-1 (CB1R) and cannabinoid receptor type-2 (CB2R), bo...
Simultaneous Determination of Thiocolchicoside and Diclofenac Diethyl Ammonium in Topical Gel Formulation by Square Wave...
Published in Russian Journal of Electrochemistry
AbstractA rapid, simple, sensitive, precise and specific square wave voltammetric method was developed for the simultaneous determination of Thiocolchicoside (TC) and Diclofenac diethyl ammonium (DDA) in topical gel formulation. The combination of TC and DDA have synergetic action on the treatment of rheumatoid arthritis and other related condition...
Simultaneous Determination of 12 Marker Components in Yeonkyopaedok-san Using HPLC–PDA and LC–MS/MS
Yeonkyopaedok-san is a traditional Korean medicine used in the early treatment of boils. In the present study, its 12 marker components for quality control were determined using high-performance liquid chromatography (HPLC) with photodiode array detection and ultra-performance liquid chromatography&ndash / mass spectrometry with tandem mass spectro...
Simultaneous analysis of seven neonicotinoid pesticides in agricultural products involving solid-phase extraction and su...
Published in Journal of Pesticide Science
This study proposes a practical and precise method for the simultaneous analysis of seven neonicotinoid pesticides in agricultural products using liquid chromatography-tandem mass spectrometry from two different approaches. First, the applicability of a cleanup cartridge, comprised of a polymer sorbent consisting of a styrene-divinylbenzene copolym...
Simultaneous separation and determination of hirsutine and hirsuteine by cyclodextrin-modified micellar electrokinetic c...
Published in Phytochemical analysis : PCA
Hirsutine and hirsuteine are the main pharmacological activity ingredients of Uncaria rhynchophylla (UR), playing an important role in treating mental and cardiovascular diseases, such as Alzheimer's disease, hypertension, Parkinson's disease, potential anti-cancer activities and so on. To develop a cyclodextrin-modified micellar electrokinetic cap...
High-resolution continuum source atomic absorption spectrometry: a review of current applications
Published in Russian Chemical Bulletin
Atomic absorption spectrometry (AAS) is one of the most widely used and available methods for analysis of substances and materials. It allows one to determine about 70 elements from the periodic table and is characterized by rapidity, high accuracy and sensitivity, as well as simplicity of analytical techniques. A feature of AAS is simultaneous det...
Development of a solventless stir bar sorptive extraction/thermal desorption large volume injection capillary gas chroma...
Stir bar sorptive extraction (SBSE) has been developed in 1999 to efficiently extract and preconcentrate volatile compounds, and many applications have been found after that. This technique conforms to the principles of green chemistry. Here, we used an autosampler with an online thermal desorption unit connected to CGC-MS to analyze pesticides. Th...
UHPLC-ESI-MS/MS Quantitative Analyses of Multicomponent Hu Gan Tablets
Published in Molecules
Nowadays, the analysis of the multi-components in Chinese patent medicine prescriptions is being paid more attention. Therefore, in this study for the first time, a simple, rapid ultrahigh performance liquid chromatography–electrospray ionization tandem mass spectrometry (UHPLC-ESI-MS/MS) method was established for simultaneous determination of 18 ...
