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  • Sumonmarn Chaneam, Saowapak Teerasong, K. Damwan, Duangjai Nacapricha, Rasamee Chaisuksant
  • Chemistry, Medicine
  • Talanta
  • 2011 (First Published: 1 June 2011)
  • This work presents a new flow-based coupled electrochemical technique for evaluation of "total antioxidant capacity (TAC)". A sequential injection (SI) with amperometric detection was applied to theContinue Reading
  • Patcharin Chaisuwan, Duangjai Nacapricha, Prapin Wilairat, Zhengjin Jiang, Norman William Smith
  • Chemistry, Medicine
  • Electrophoresis
  • 2008 (First Published: 1 October 2008)
  • In-line solid-phase extraction (SPE) for capillary electrophoresis (CE) was investigated using a synthesized monolith and a commercial packing material. Terbutaline (TER) andContinue Reading
  • Alejandro Ayala Quezada, Keisuke Ohara, +4 authors Tadao Sakai
  • Chemistry, Medicine
  • Talanta
  • 2015 (First Published: 1 November 2015)
  • An automated stopped-in-loop flow analysis (SILFA) system is proposed for the successive catalytic determination of vanadium and iron. The determination of vanadium was based on the p-anisidineContinue Reading
  • Watcharaporn Hoisang, Duangjai Nacapricha, Prapin Wilairat, Warawut Tiyapongpattana
  • Chemistry, Medicine
  • Journal of separation science
  • 2019 (First Published: 1 June 2019)
  • Liquid microextraction employing solidification of the floating organic droplet, with vortexing and heating to optimize extraction efficiency, was developed for the determination of sevenContinue Reading
  • Sirichai Kositarat, Norman William Smith, Duangjai Nacapricha, Prapin Wilairat, Patcharin Chaisuwan
  • Chemistry, Medicine
  • Talanta
  • 2011 (First Published: 1 June 2011)
  • This work investigated the repeatability of column preparation for a reversed-phase C18 monolith, namely stearyl methacrylate-co-ethylene glycol dimethacrylate (SMA-EDMA). The columns were thermallyContinue Reading
  • Maliwan Amatatongchai, Jirayu Sitanurak, +5 authors Peter A. Lieberzeit
  • Chemistry, Medicine
  • Analytica chimica acta
  • 2019 (First Published: 1 October 2019)
  • Herein, we propose a highly sensitive and selective three-dimensional electrochemical paper-based analytical device (3D-ePAD) to determine serotonin (Ser). It uses a graphite-paste electrode modifiedContinue Reading
  • Thitaporn Sonsa-ard, Duangjai Nacapricha, Takashi Kaneta
  • Chemistry, Medicine
  • Journal of food science
  • 2019 (First Published: 1 August 2019)
  • To determine the total acidity in freshly squeezed fruit juice, we miniaturized the potentiometric titrations and achieved better accuracy compared with titrations from a conventional pH probe. TheContinue Reading
    The effect of solvent composition on the uv-visible spectrum of methyl orange was investigated for application to the quantitative determination of ethanol. At fixed pH, there was a hypsochromicContinue Reading