title: [Distribution of matrix-bound phosphine in surface sediments of Jinpu Bay].
abstract: This work investigated the distribution of matrix-bound phosphine in surface sediments of Jinpu Bay and associated environmental factors in summer, using the gas chromatography combined with a pulsed flame detector (GC-PFPD). It showed that phosphine ubiquitously presented in the sediments of Jinpu Bay. Contents of matrix-bound phosphine varied between 62. 58 and 190. 81 ng.kg-1, with the average value of 114.42 ng.kg-1. In addition, the spatial distribution of matrix-bound phosphine indicated that matrix-bound phosphine in inshore sediments had relatively higher contents than those in offshore sediments. Statistical analysis showed that matrix-bound phosphine significantly related to organic phosphorus and alkaline phosphatase activity ( R = 0. 882, P = 0. 01; R = 0. 819, P =0. 023). However, there were no correlations between matrix-bound phosphine and organic nitrogen, inorganic phosphorus and sediment grain sizes. These results implied that accumulation and distribution of matrix-bound phosphined were mainly affected by the decomposition of organic phosphorus by microorganisms.
authors.affiliation: State Key Laboratory of Estuarine and Coastal Research, East China Normal University, Shanghai 200062, China. youlili0576@sina.cn
authors.forename: Li-Li
authors.initials: LL
authors.lastname: You
authors.affiliation: State Key Laboratory of Estuarine and Coastal Research, East China Normal University, Shanghai 200062, China.
authors.forename: Hai-Bo
authors.initials: HB
authors.lastname: Zong
authors.affiliation: Center of National Marine Environmental Monitoring, Dalian 116023, China.
authors.forename: Shu-Fang
authors.initials: SF
authors.lastname: Zhang
authors.affiliation: State Key Laboratory of Estuarine and Coastal Research, East China Normal University, Shanghai 200062, China.
authors.forename: Guo-Yu
authors.initials: GY
authors.lastname: Yin
authors.affiliation: State Key Laboratory of Estuarine and Coastal Research, East China Normal University, Shanghai 200062, China.
authors.forename: Tao
authors.initials: T
authors.lastname: Li
authors.affiliation: State Key Laboratory of Estuarine and Coastal Research, East China Normal University, Shanghai 200062, China.
authors.forename: Li-Jun
authors.initials: LJ
authors.lastname: Hou
mesh_terms: D061006:Bays; D002681:China; D002849:Chromatography, Gas; D004784:Environmental Monitoring; D019015:Geologic Sediments / Q000032:analysis*; D009584:Nitrogen / Q000032:analysis; D010720:Phosphines / Q000032:analysis*; D010758:Phosphorus / Q000032:analysis; D012621:Seasons; D014874:Water Pollutants, Chemical / Q000032:analysis*
chemical_list: D010720:Phosphines; D014874:Water Pollutants, Chemical; D010758:Phosphorus; C044646:phosphine; D009584:Nitrogen