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 ผลงานตีพิมพ์ในวารสารวิชาการSynthesis, characterization, and pepsin inhibition study of Au(III)–3-(2?-thiazolylazo)-2,6-diaminopyridine complexผู้แต่ง: Piyasaengthong, A.,  Dr.Nonlawat Boonyalai, Assistant Professor , Dr.Songwut Suramitr, Associate Professor , Dr.Apisit Songsasen, Associate Professor , วารสาร: 
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ที่มา:31st Congress on Science and Technology of Thailand.หัวเรื่อง:Complex Formation Between 3-(2'-Thiazolylazo)-2,6-Diaminopyridine with Gold(III) ion. |
 หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : Complexation and Spectrophotometric Determination of Cobalt(II) Ion with 3-(2?-thiazolylazo)-2,6-diaminopyridine) ผู้เขียน:Natthapon VEERACHALEE, Pongpol Taweema, ดร.อภิสิฏฐ์ ศงสะเสน, รองศาสตราจารย์ สื่อสิ่งพิมพ์:pdf AbstractThe complexation of 3-(2?-thiazolylazo)-2,6-diaminopyridine (TADAP) with cobalt(II) has been studied spectrophotometrically. The stability constant of TADAP ligand with cobalt(II) ion has been determined at a constant temperature, where the molar ratio of this complex is 1:2 (metal:ligand). TADAP has been prepared and characterized on the basis of FT-IR spectral data. A procedure for the spectrophotometric determination of this complex is proposed where it is rapid, sensitive and highly specific. Beer’s law was obeyed in the range 2.0 ? 10-6-1.2 ? 10-5 M at pH 10 to form a green complex. The limit of detection is 5.26 ? 10-7 M (? = 1.52 ? 104 l-1mol-1cm-1 at ?max = 598 nm). |
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