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Browsing by Subject "Chromatographic analysis"

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Chemical constituents of garcinia fusca pierre

Jannarin Nontakham (2014-09-04)
Chemistry and biological properties of berry volatiles by two-dimensional chromatography, fluorescence and Fourier transform infrared spectroscopy techniques

Dymerski T.; Namieśnik J.; Leontowicz H.; Leontowicz M.; Vearasilp K.; Martinez-Ayala A.L.; González-Aguilar G.A.; Robles-Sánchez M.; Gorinstein S. (2016)

In this study, three-dimensional fluorescence spectroscopy in combination with ultraviolet visible (UV-Vis) absorption spectroscopy, Fourier transform infrared spectroscopy (FTIR) and two-dimensional chromatography techniques ...
Graphene/polyvinylpyrrolidone/polyaniline nanocomposite-modified electrode for simultaneous determination of parabens by high performance liquid chromatography

Kajornkavinkul S.; Punrat E.; Siangproh W.; Rodthongkum N.; Praphairaksit N.; Chailapakul O. (2016)

A nanocomposite of graphene (G), polyvinylpyrrolidone (PVP) and polyaniline (PANI) modified onto screen-printed carbon electrode (SPCE) using an electrospraying technique was developed for simultaneous determination of ...
High-efficient of graphene nanocomposite: Application to rapidly simultaneous identification and quantitation of fat-soluble vitamins in different matric samples

Thangphatthanarungruang J.; Yakoh A.; Laocharoensuk R.; Chotsuwan C.; Chailapakul O.; Siangproh W. (2020)

An alternative approach for rapid, highly sensitive and specific analytical sensor for the simultaneous determination of fat-soluble vitamins (A, D, E and K) in different matric samples was demonstrated using our developed ...
New membraneless vaporization unit coupled with flow systems for analysis of ethanol

Ratanawimarnwong N.; Pluangklang T.; Chysiri T.; Nacapricha D. (2013)

This work presents the development of a new design for a membraneless vaporization (MBL-VP) unit, called dual chamber MBL-VP for measurement of volatile compounds. With this unit, exact volumes of sample and reagent are ...
Purification, characterization, and overexpression of thermophilic pectate lyase of bacillus sp. rn1 isolated from a hot spring in Thailand

Sukhumsiirchart W.; Kawanishi S.; Deesukon W.; Chansiri K.; Kawasaki H.; Sakamoto T. (2009)

A thermophilic pectate lyase, Pel SWU, was isolated from a culture filtrate of Bacillus sp. RN1 isolated from a hot spring in Ranong Province, Thailand. The enzyme was purified to homogeneity using cation-exchange and ...
Simple and fast analysis of iohexol in human serums using micro-hydrophilic interaction liquid chromatography with monolithic column

Chaloemsuwiwattanakan T.; Sangcakul A.; Kitiyakara C.; Nacapricha D.; Wilairat P.; Chaisuwan P. (2016)

A simple and rapid method based on micro-liquid chromatography using a synthetic monolithic capillary column was developed for determination of iohexol in human serums, a marker to evaluate the glomerular filtration rate. ...

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