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| 1 | Distribution and characteristic of PAHs in snow of Fildes Peninsula显示文摘Polycyclic aromatic hydrocarbons (PAHs) investigation in different matrices has been reported largely,whereas reports on snow samples were limited.Snow,as the main matrix in the polar region,has an important study meaning.PAHs in snow samples were analyzed to investigate the distribution and contamination status of them in the Antarctic,as well as to provide some references for global migration of PAHs.Snow samples collected in Fildes Peninsula were enriched and separated by solid-phase membrane disks and eluted by methylene dichloride,then quantified by gas chromatography/mass spectrometry.All types of PAHs were detected except for Benzo(a)pyrene.Principal component analysis method was applied to characterize them.Three factors (Naphthalene,Fluorene and Phenanthrene) accounted for 60.57%,21.61% and 9.80%,respectively.The results showed that the major PAHs sources maybe the atmospheric transportation,and the combustion of fuel in Fildes Peninsula.The comparison of concentration and types of PAHs between accumulated snow and fresh snow showed that the main compound concentrations in accumulated snow samples were higher than those in fresh ones.The risk assessment indicated that the amount of PAHs in the snow samples would not lead to ecological risk. | Guangshui Na Chunyang Liu Zhen Wang Linke Ge Xindong Ma Ziwei Yao | 2011 | Journal of Environmental Sciences2011，23，9： | 8 |
| 2 | Distribution characteristics and indicator significance of Dechloranes in multi-matrices at Ny-lesund in the Arctic显示文摘In recent years, Dechloranes have been widely detected in the environment around the world.However, understanding and knowledge of Dechloranes in remote regions, such as the Arctic,remain lacking. Therefore, the concentrations of 5 Dechloranes in surface seawater, sediment,soil, moss, and dung collected from Ny-lesund in the Arctic were measured with the concentrations 93 pg/L, 342, 325, 1.4, and 258 pg/g, respectively, which were much lower than those in Asian and European regions. The mean ratios of anti-Dechlorane Plus(DP) to total DP(fanti) in seawater, sediment, soil, moss, dung, and atmospheric samples were 0.36, 0.21, 0.18,0.27, 0.66, and 0.43, respectively. Results suggested that the main source of DP in seawater,sediment, soil, and moss was long-range atmospheric transport. However, the ratio identified in dung was different, for which the migration behavior of the organism is probably the main source of DP. | Guangshui Na Wei Wei Shiyao Zhou Hui Gao Xindong Ma Lina Qiu Linke Ge Chenguang Bao Ziwei Yao | 2015 | Journal of Environmental Sciences2015，27，2： | 3 |
| 3 | Photodegradation of hydroxyfluorenes in ice and water: A comparison of kinetics, effects of water constituents, and phototransformation by-products显示文摘The photochemical behavior of organic pollutants in ice is poorly studied in comparison to aqueous photochemistry.Here we report a detailed comparison of ice and aqueous photodegradation of two representative OH-PAHs,2-hydroxyfluorene(2-OHFL)and 9-hydroxyfluorene(9-OHFL),which are newly recognized contaminants in the wider environment including colder regions.Interestingly,their photodegradation kinetics were clearly influenced by whether they reside in ice or water.Under the same simulated solar irradiation(λ>290 nm),OHFLs photodegraded faster in ice than in equivalent aqueous solutions and this was attributed to the specific concentration effect caused by freezing.Furthermore,the presence of dissolved constituents in ice also influenced photodegradation with 2-OHFL phototransforming the fastest in‘seawater’ice(k=(11.4±1.0)×10^(−2) min^(−1))followed by‘pure-water’ice((8.7±0.4)×10^(−2) min^(−1))and‘freshwater’ice((8.0±0.7)×10^(−2) min^(−1)).The presence of dissolved constituents(specifically Cl^(−),NO_(3)^(−),Fe(Ⅲ)and humic acid)influences the phototransformation kinetics,either enhancing or suppressing phototransformation,but this is based on the quantity of the constituent present in the matrixes,the specific OHFL isomer and the matrix type(e.g.,ice or aqueous solution).Careful derivation of key photointermediates was undertaken in both ice and water samples using tandem mass spectrometry.Ice phototransformation exhibited fewer by-products and‘simpler’pathways giving rise to a range of hydroxylated fluorenes and hydroxylated fluorenones in ice.These results are of importance when considering the fate of PAHs and OH-PAHs in cold regions and their persistence in sunlit ice. | Linke Ge Shengkai Cao Crispin Halsall Junfeng Niu Dongxiao Bai Guangkai He Peng Zhang Hongrui Ma | 2023 | Journal of Environmental Sciences2023，，2： | 2 |
| 4 | In vivo T1 p and T2 mapping of articular cartilage in osteoarthritis of the knee using 3 T MRI 显示文摘 | Li X Ma CB Link TM | 2007 | Osteoarthr Cartilage2007，15，7： | 1 |
| 5 | In vivo T1p and 12 mapping of articular cartilage in osteoarthritis of the knee using 3T MRI显示文摘 | Lix Ma C B Link T M | 2007 | Osteoarthr cartil2007，15，7： | 1 |
| 6 | In vivo T(lrho)and T2mapping of articular cartilage in osteoarthritis of the knee using3 T MRI显示文摘 | Li X Benjamin Ma C Link TM | 2007 | Osteoarthritis Cartilage2007，15，7： | 1 |
| 7 | In vivo T(1rho)and T(2) mapping of articular cartilage in osteoarthritis of the knee using 3T MRI显示文摘 | Li X Benjamin Ma C Link T M | 2007 | Osteoarthritis Cartilage2007，15，7： | 1 |
| 8 | Transient high heat load tests on pure ultra-fine grained tungsten fabricated by resistance sintering under ultra-high pressure显示文摘 | ZHOU Z J PINTSUK G LINKE J HIRAI T RODIG M MA Y GE C C | 2010 | Fusion Engineering and Design2010，85，1： | 1 |
| 9 | In vivo T(1rho) and T2 mapping of articular cartilage in osteoarthritis of the knee using 3T MRI显示文摘 | Li X Benjamin Ma C Link TM | 2007 | Osteoarthritis Cartilage2007，15，7： | 1 |
| 10 | The influence of disuse on bone microstructure and mechanics assessed by HR-pQCT显示文摘 | Galateia J Kazakia Willy Tjong Jasmine A Nirody Andrew J Burghardt Julio Carballido-Gamio Janina M Patsch Thomas Link Brian T Feeley C Benjamin Ma | 2014 | Bone2014，63，： | 1 |
| 11 | Increased risk of paroxysmal atrial fibrillation episodes associated with acute increases in ambient air pollution显示文摘 | Rich DQ Mittleman MA Link MS | 2006 | Environ Health Perspect2006，114，1： | 1 |
| 12 | Assessment of tumor size for multifocal primary breast cancer显示文摘 | Fish EB Chapman JA Link MA | 1998 | Ann Surg Oncol1998，5，： | 1 |
| 13 | In vivo T(1rho) and T(2)mapping of articular cartilage in osteoaahrids of the knee using 3 T MRI显示文摘 | Li X Benjamin Ma C Link TM | | 0，，： | 1 |
| 14 | In vivo T1ρ and T2mapping of articular cartilage in osteoarthritis of the knee using 3 T MRI显示文摘 | Li Xiao-juan Benjamin Ma C Link TM | 2007 | Ostecarthritis Cartilage2007，15，7： | 1 |
| 15 | In vivo T19 quantitative ass- essment of knee cartilage after anterior crueiate ligament injury using 3 tesla magnetic resonance imaging显示文摘 | Bolbos RI Ma CB Link TM | 2008 | Investigative Rad- iology2008，43，： | 1 |
| 16 | In vivo T(1 rho) and T( 2 ) mapping of articular cartilage in osteoarthritis of the knee using 3T MRI 显示文摘 | LI X BENJAMIN MA C LINK T M | 2007 | Osteoarthritis Cartilage2007，15，7： | 1 |
| 17 | In vivo T1ρ and T2 mapping of articular cartilage in osteoarthritis of the knee using 3 T MRI显示文摘 | Li X Ma CB Link TM | 2007 | Osteoarthr Cartil2007，15，7： | 1 |
| 18 | J Phys Chem B显示文摘 | Link S El-Sayed MA | 1999 | 103:54101999，103，： | 1 |
| 19 | Fabrication and characterization of ultra-fine grained tungsten by resistance sintering under ultra-high pressure 显示文摘 | ZHOU Zhang-jian MA Yao DU Juan LINKE J | 2009 | Materials Science and Engineering A2009，505，： | 1 |
| 20 | Competing causes of death for primary breast cancer显示文摘 | Fish EB Chapman JA Link MA | 1998 | Ann Surg Oncol1998，5，4： | 1 |
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