A5067850602- Analytical Chemistry and Chromatography
- Advanced Chemical Sensor Technologies
- Analytical Chemistry and Sensors
- Biosensors and Analytical Detection
- Analytical chemistry methods development
- Microfluidic and Capillary Electrophoresis Applications
- Electrochemical sensors and biosensors
- Electrochemical Analysis and Applications
- Hemoglobinopathies and Related Disorders
- Mass Spectrometry Techniques and Applications
- Iron Metabolism and Disorders
- Analytical Methods in Pharmaceuticals
- Innovative Microfluidic and Catalytic Techniques Innovation
- Antibiotics Pharmacokinetics and Efficacy
- Pharmacological Effects and Assays
- Advanced biosensing and bioanalysis techniques
- Metabolomics and Mass Spectrometry Studies
- Biochemical Analysis and Sensing Techniques
- Neonatal Health and Biochemistry
- Computational Drug Discovery Methods
- Chromatography in Natural Products
- Blood groups and transfusion
- Free Radicals and Antioxidants
- Trace Elements in Health
- Metal complexes synthesis and properties
Mahidol University
2016-2025
Chulabhorn Research Institute
2014-2023
University of Warsaw
2020
Bangkok University
2014-2015
University of California, Los Angeles
1970-1971
Phytochemical analysis of phenolic acids and flavonols poses a challenge, necessitating the development an efficient separation method. This facilitates quantification these compounds, yielding valuable insights into their benefits.To develop highly effective by capillary electrophoresis ultraviolet (UV) detection through modification surface using 3-aminopropyltriethoxysilane (APTES) at millimolar concentrations.The is modified with 0.36 mM-APTES solution. The electrolyte 20.0 mM borate...
In vitro digestibility of stevioside, a natural sweetener, by various digestive enzymes was investigated. Stevioside incubated with salivary α-amylase, pancreatic saliva, pepsin, gastric secretion, pancreatin and intestinal brush border membrane mice, rats, hamsters as well microflora humans. None these digested stevioside except the rat hamster cecal contents, which hydrolyzed it to steviol, mouse content human feces, both steviol steviol-16, 17α-epoxide. Steviol-16, 17α-epoxide then...
This study introduces a novel approach for detecting 2,4,6-trinitrotoluene (TNT) explosives using pencil-based sensor. The sensor utilizes the circular area of 3 mm diameter pencil lead enclosed by wooden shaft as working electrode. Graphene and silver–silver chloride inks are printed onto transparent sticky tapes, counter reference electrodes, respectively. These tapes affixed to body, with copper wires electrical conductors. Differential pulse adsorptive stripping voltammetry standard TNT...
This work presents a fully disposable microchamber for gas generation of sample solution. The consists cylindrical well-reactor and paper-based microfluidic lid (μFluidic lid), which also serves as the reagent loading dispensing unit. base reactor hydrophobic membrane covering an in-house graphene electrochemical sensor. Fabrication sensor three-layer μFluidic is described. designed to provide steady addition acid into solution instead liquid drops from syringe. There are three steps in...
Abstract In this work the development of a comprehensive 2‐D GC flame ionization detection (GC×GC FID) method for biodiesel fuels is reported. This used analysis fatty acid methyl esters (FAMEs) in both (B100) and blend (B5) samples. The separation FAME was based on component boiling point first dimension polarity second by using BPX5/BP20 column set to provide measure ‘orthogonality’ space. Here columns are coupled with cryogenic modulator operating novel temperature programmed mode ( T M )...
Abstract CE methods with capacitively coupled contactless conductivity detection (C 4 D) were developed for the enantiomeric separation of following stimulants: amphetamine (AP), methamphetamine (MA), ephedrine (EP), pseudoephedrine (PE), norephedrine (NE) and norpseudoephedrine (NPE). Acetic acid (pH 2.5 2.8) was found to be optimal background electrolyte CE‐C D system. The chiral selectors, carboxymethyl‐β‐cyclodextrin (CMBCD), heptakis(2,6‐di‐ O ‐methyl)‐β‐cyclodextrin (DMBCD) crown ether...
UGT1A6 has been proposed as the predominant isoform responsible for glucuronidation of deferiprone. UGT1A6*2 allele associated with altered enzyme activity.There is no statistically significant effect genotype on single-dose pharmacokinetics deferiprone in healthy volunteers. Gender influences serum Body iron stores reflected by ferritin levels may have an influence extent extravascular distribution. AIMS To examine effects polymorphisms volunteers.Twenty-two volunteers were enrolled and...
This work describes an unconventional voltammetric detection in a gas medium using suspended electrode unit. A paper moistened with the supporting electrolyte is used to absorb gas. concept was demonstrated for in-situ of SO2 quantify sulfite residue samples frozen shrimp. The generated by acidification aqueous suspension shrimp tissues. porosity facial tissue employed provide liquid layer operation gold leaf electrochemical sensor. absorbed also dissolved this layer. sensor reusable...
Oxidative stress in thalassemia is caused by secondary iron overload and stems from blood transfusion increased uptake. In this study, we hypothesized that levels of o- m-tyrosine, products hydroxyl radical attack on phenylalanine, would be elevated β-thalassemia (intermediate). This study represents the first report which specific markers protein oxidative damage have been quantified thalassemia. We used GC/MS to assay m-tyrosine at femtomole level using only a few microliters plasma....
Abstract Liquid microextraction employing solidification of the floating organic droplet, with vortexing and heating to optimize extraction efficiency, was developed for determination seven insecticides in fruit juice, vegetables, agricultural runoff water. The extracts were analyzed by gas chromatography both flame ionization mass spectrometry detection chlorpyrifos, prothiofos, profenofos, ethion, λ‐cyhalothrin, permethrin, cypermethrin, respectively. Using 20 μL 1‐undecanol 10 mL aqueous...