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| 1 | Sorption of biodegradation end products of nonylphenol polyethoxylates onto activated sludge显示文摘Nonylphenol(NP), nonylphenoxy acetic acid(NP1EC), nonylphenol monoethoxy acetic acid(NP2EC), nonylphenol monoethoxylate(NP1EO) and nonylphenol diethoxylate(NP2EO) are biodegradation end products(BEPs) of nonionic surfactant nonylphenolpolyethoxylates (NPnEO). In this research, sorption of these compounds onto model activated sludge was characterized. Sorption equilibrium experiments showed that NP, NP1EO and NP2EO reached equilibrium in about 12 h, while equilibrium of NP1EC and NP2EC were reached earlier, in about 4 h. In sorption isotherm experiments, obtained equilibrium data at 28℃ fitted well to Freundlich sorption model for all investigated compounds. For NP1EC, in addition to Freundlich, equilibrium data also fitted well to Langmuir model. Linear sorption model was also tried, and equilibrium data of all NP, NP1EO, NP2EO and NP2EC except NP1EC fitted well to this model. Calculated Freundlich coefficient(K F) and linear sorption coefficient(K D) showed that sorption capacity of the investigated compounds were in order NP>NP2EO>NP1EO>NP1EC≈NP2EC. For NP, NP1EO and NP2EO, high values of calculated K F and K D indicated an easy uptake of these compounds from aqueous phase onto activated sludge. Whereas, NP1EC and NP2EC with low values of K F and K D absorbed weakly to activated sludge and tended to preferably remain in aqueous phase. | Nguyen Viet Hung Masafumi Tateda Michihiko Ike Masanori Fujita Shinji Tsunoi Minoru Tanaka | 2004 | Journal of Environmental Sciences2004，16，4： | 4 |
| 2 | 显示文摘 | HARINO H TSUNOI S SATO T | 2001 | Fresenius J Anal Chem2001，369，： | 1 |
| 3 | Preparation and enantiomer separation behavior of selectively methylated ,β - cyclodextrin- bonded stationary phases for high performance chromatography 显示文摘 | Takashi Araki Shinji Tsunoi Minoru Tanaka | 2000 | Analytica Chimica Acta2000，410，： | 1 |
| 4 | 显示文摘 | Tsunoi S | 2002 | Chromatogr A2002，962，12： | 1 |
| 5 | Analysis of organotin compounds by grignard derivatization and gas chromatography- ion trap tandem mass spectrometry显示文摘 | S Tsunoi T Matoba H Shioji | 2002 | Chromatogr A2002，962，122： | 1 |
| 6 | Analysis of organotin compounds by gfignard derivatization and gas chromatography - ion trap tandem mass spectrometry显示文摘 | Shinji Tsunoi Takashi Matobaa Hirotaka Shiojia | 2002 | Chromatogr A2002，962，12： | 1 |
| 7 | Liquid-phase microextraction of tributyltin and triphenyltin coupled with gas chromatography-tandem mass spectrometry:Comparison between 4-fluorophenyl and ethyl derivatizations显示文摘 | Hirotaka Shioji Shinji Tsunoi Hiroya Harino | | 0，，01： | 1 |
| 8 | Simuhaneous determination of degradation products of nonylphenol polyethoxylates and their halogenated derivatives by solid-phase extraction and gas chromatography-tandem mass spectrometry after trimethylsilylation显示文摘 | HOAI P M TSUNOI S IKE M | 2003 | J Chromatogr: A2003，1020，2： | 1 |
| 9 | FreeradicalcarbonylationusingaZn(Cu) inducedreductionsystem显示文摘 | TsunoiS RyuI FukushimaH etal | 1995 | Synlett1995，，： | 1 |
| 10 | Effects of paro- thyroid hormone on cAM P production and alkaline phospha- tase activity in osteohlastic clone MC3T3-E1 cells 显示文摘 | Nakatoni Y Tsunoi M Hakeda Y | 1984 | Bio- chem Biophys Res Commun1984，123，3： | 1 |
| 11 | Anal Sci显示文摘 | ARAKI T CHIBA M TSUNOI S | 2000 | 16:421-4242000，16，： | 1 |
| 12 | Analysis of organotin compounds by grignard derivatization and gas chromatography-ion trap tandem mass spectrometry显示文摘 | TSUNOI S MATOBA T SHIOJI H | 2002 | Journal of Chromatogr A2002，962，12： | 1 |
| 13 | Analysis of organotin compounds by grignard derivatization and gas chromatography-ion trap tandem mass spectrometiry显示文摘 | Shinji Tsunoi Takashi Matoba Hirotaka Shioji | 2002 | Chromatography A2002，962，： | 1 |
| 14 | ,Simultaneous Determination of Degradation Produets of Nonyiphenol Polyethoxylates and Their Halogenated Derivateves by Solid-Phase Extraction and Gas Chromatography-Tandem Mass Spectrometry after Trimethylsilyation显示文摘 | Pham Manh Hoai Shinji Tsunoi Michihiko Ike | 2003 | Journal of Chromtography A2003，1020，： | 1 |
| 15 | High performance solid -phase analytical derivatization of phenols for gas chromatography - mass spectrometry 显示文摘 | Kojima M Tsunoi S Tanaka M | 2004 | J Chromatogr A2004，1042，12： | 1 |
| 16 | Simuhaneous determination of degradation products of nonylphenol polyethoxylates and their halogenated derivatives by solid-phase extraction and gas chromatography - tandem mass spectrometry after trimethylsilylation显示文摘 | HOAI P M TSUNOI S IKE M | 2003 | J Chromatogr: A2003，1020，2： | 1 |
| 17 | Simultaneous determination of degradation products of nonylphenol polyethoxylates and their halogenated derivatives by solid-phase extraction and gas chromatog- raphy-tandem mass spectrometry after trimethylsilylation显示文摘 | Pham MH Tsunoi S lke M | 2003 | Journa ofChromatographyA2003，1020，： | 1 |
| 18 | Stereoselective binding and degradation of sulbenicillin in the presence of human serum albumin显示文摘 | TSUDA Y TSUNOI T WATANABE N | 2001 | Chirality2001，13，： | 1 |
| 19 | 用于基带HDTV信号记录的1/2英寸盒式录像机显示文摘本文叙述最新研制的,用于记录基带高清晰度电视信号的1/2英寸盒式录像机的技术细节。它采用金属带和叠层非晶体视频磁头,记录时间可达63分钟,亮度和色度信号的带宽分别为20MHz和7MHz。为了克服传统分段记录的弊端,提出了一种新的二通道、三分段记录方式。 | Seishi Sasaki Masamitsu Ohtsu Mitsuo Chiba Tatsushi Bannai Hiroshi Taniguchi Ryoji Tsunoi Iwao Obata 孙才友 | 1992 | 电视技术1992，，7： | 0 |
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