title: [Analysis of microcystins by LC-ESI/MS in the algal cells collected from Guanting Reservoir].
abstract: Microcystins in the algal cells collected from the water bloom of the Guanting Reservoir were further investigated by LC-ESI/MS after they were studied by the method of HPLC. The results show that three of five microcystins contained in the algal cells of the blooms are frequent Microcystin-RR, Microcystin-LR and Microcystin-YR, whose molecular weights are 1038, 995 and 1045 respectively. The molecular weights of the other two microcystins are 1052 and 1009, which are corresponding to the molecular weights of Microcystin-YY and Mglu-LR respectively, however the complete identification of both MCs have to be carried out further.
authors.affiliation: State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.
authors.forename: Hong-xing
authors.initials: HX
authors.lastname: Shi
authors.forename: Jiu-hui
authors.initials: JH
authors.lastname: Qu
mesh_terms: D002681:China; D056890:Eukaryota / Q000737:chemistry*; D005068:Eutrophication; D013058:Mass Spectrometry; D052998:Microcystins / Q000032:analysis* / Q000737:chemistry; D010666:Phenylpropionates; D014871:Water Microbiology; D014881:Water Supply / Q000032:analysis*
chemical_list: D052998:Microcystins; D010666:Phenylpropionates; C093607:microcystin LL; C001418:4-hydroxyphenyllactic acid