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ผลงานตีพิมพ์ในวารสารวิชาการEnhancement of tributyltin degradation under natural light by N-doped TiO2 photocatalystผู้แต่ง: Bangkedphol, S, Keenan, HE, Davidson, CM, Sakultantimetha, A, Sirisaksoontorn, W,  Dr.Apisit Songsasen, Associate Professor, วารสาร:  
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ผลงานตีพิมพ์ในวารสารวิชาการThe ecological complexity of the Thai-Laos Mekong River: I. Geology, seasonal variation and human impact assessment on river qualityผู้แต่ง:Dr.Veerasak Udomchock, Associate Professor , Dr.Pacharee Suntaranant, Associate Professor, Dr.Apisit Songsasen, Associate Professor, Dr.Kantimanee Pradermwong, Assistant Professor , Mr.pongsakorn JIWAPORNKUPT, Lecturer , Mr.Unnop Homchan, Assistant Professor , Dr.Nitaya Lauhachinda, Associate Professor, Sakultantimetha, A, Bangkedphol, S, Torrance, K, Gibson, MD, Gaines, AF, Booth, PH, Keenan, HE, วารสาร: |
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ผลงานตีพิมพ์ในวารสารวิชาการAcceleration of tributyltin biodegradation by sediment microorganisms under optimized environmental conditionsผู้แต่ง:Sakultantimetha, A, Keenan, HE, Beattie, TK, Aspray, TJ, Bangkedphol, S, Dr.Apisit Songsasen, Associate Professor, วารสาร: |
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ผลงานตีพิมพ์ในวารสารวิชาการThe ecological complexity of the Thai-Laos Mekong River: III. Health status of Mekong catfish and cyprinids, evidence of bioaccumulative effectsผู้แต่ง:Phanwichien, K, Pradermwong, A, Keenan, HE, Ms.Kamonporn Masawang , Dr.Nitaya Lauhachinda, Associate Professor, Dr.Apisit Songsasen, Associate Professor, Sakultantimetha, A, Bangkedphol, S, Gaines, AF, วารสาร: |
 การประชุมวิชาการEnvironmental monitoring of the sediment pollution along the Thai:Laos Mekongผู้แต่ง:Keenan, HE, Dyer, M, Dr.Apisit Songsasen, Associate Professor, Bangkedphol, S, Mr.Unnop Homchan, Assistant Professor, การประชุมวิชาการ:  |
การประชุมวิชาการEffects of Cations, Anions and PAHs on the adsorption of Cadmium by the Mekong river Sediments (2008)ผู้แต่ง:Dr.Apisit Songsasen, Associate Professor, ชรัชชา ชาติสกุลทอง, Mr.Unnop Homchan, Assistant Professor, Dr.Nitaya Lauhachinda, Associate Professor, H.E. Keenan, Sornnarin Bangkedphol, Arthit Sakultantimetha, การประชุมวิชาการ: |
การประชุมวิชาการContamination of Heavy Metals and Polycyclic Aromatic hydrocarbons (PAHs) in the Thai/Laos Mekong Riverผู้แต่ง:Dr.Apisit Songsasen, Associate Professor, Sornnarin Bangkedphol, Arthit Sakultantimetha, Mr.Unnop Homchan, Assistant Professor, Dr.Nitaya Lauhachinda, Associate Professor, A.F. Gaines, H.E. Keenan, การประชุมวิชาการ: |
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 หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : Synchronous Fluorescence Spectroscopic Technique: The Tool for Rapid Identification of Polycyclic Aromatic Hydrocarbons (PAHs) at Sub-ppm Level in Liquid Samples) ผู้เขียน:ดร.อภิสิฏฐ์ ศงสะเสน, รองศาสตราจารย์, Sornnarin Bangkedphol, ดร.พรพรรณ พรศิลปทิพย์, อาจารย์ สื่อสิ่งพิมพ์:pdf AbstractVarious polycyclic aromatic hydrocarbons (PAHs) at sub-ppm level were identified qualitatively by synchronous scanning fluorescence technique at various wavelength intervals (??). Due to the difference in chemical structure, each PAHs gives specific characteristic spectrum for each wavelength intervals (??). This work demonstrated that the synchronous scanning fluorescence method can be used as a tool for the rapid identification of PAHs in ethanolic sample which contain three or six types of PAHs such as fluorene, truxene, benzo(k) fluoranthene, carbazole, chrysene, anthracene, acenaphthene and indeno(1,2,3,cd)pyrene in mixture. |
หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : Environmental Fate and Transportation of Cadmium, Lead and Manganese in a River Environment using the EPISUITE Program) ผู้เขียน:Arthit Sakultantimetha, Sornnarin Bangkedphol, Nittaya Lauhachinda, นายอรรณพ หอมจันทร์, ผู้ช่วยศาสตราจารย์, ดร.อภิสิฏฐ์ ศงสะเสน, รองศาสตราจารย์ สื่อสิ่งพิมพ์:pdf AbstractThe Mekong River is an essential source of water and protein for the inhabitants of Thailand and the Lao Peoples’ Democratic Republic. It is hypothesized that pollution may be adversely affecting the water and sediment quality, which directly affects the health and population of aquatic life and ultimately human health. The quality of the river can be assessed using various chemical and physical parameters, one of which is the metal content of both the water and the sediment. The introduction of environmental quality standards allows comparison of the values obtained with the guidelines. Furthermore, the modeling program EPISUITE was used to determine the environmental partitioning of pollutants within different environmental compartments. Using the data produced for metals, the experimental model was compared to the default model. This involved experimentally measuring the log Koc (the organic carbon partition coefficient ) and from this determining the log Kow (octanol-water partition coefficient). High availability of metals in sediment may lead to greater biomagnification in fish, finally accumulating in humans. The potential for this was shown by accumulative values exceeding both the chronic value (ChrV) and lethal concentration 50 (LC50) for fish in comparison with the guidelines, as the amount of cadmium and lead in sediment was above the lowest effect level but below the severe effect level. |
หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : Determination of Selenium in Water Samples by Using a Methylene Blue Kinetic Catalytic Spectrophotometric Method) ผู้เขียน:ดร.อภิสิฏฐ์ ศงสะเสน, รองศาสตราจารย์, ภาษิต อัครยรรยง, Sornarin Bangkedphol, Wantana Sasomsap สื่อสิ่งพิมพ์:pdf AbstractA kinetic catalytic spectrophotometric method, which was very sensitive and effective, was developed for the determination of selenium in water samples. It based on the catalytic effect of selenium on the reaction of methylene blue with sodium sulfide. A change in the absorbance of methylene blue with times at various concentrations of selenium were monitored, giving the “end point” (time) for each concentration of selenium. A plot of end point versus selenium concentration constituted a calibration graph, which was linear in a range of 2.5-30 ppb of selenium, with the correlation coefficient of 0.9992. The method was applied to determine the amount of selenium in the water sample containing 15 ppb of selenium, giving 91.84% recovery and the relative standard deviation of 2.27%. Compared with the hydride generation atomic absorption spectrometry method, this method is more sensitive for the determination of selenium in the water sample when the concentration of selenium is lower than 100 ppb. |
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