| 1 | Seven microcystins from Microcystis waterbloom in Lake Dalai,China显示文摘Seven types of microcystins,isolated from Microcystis waterbloom in Lake Dalai,were characterized.The major toxins:MCYST-LR,MCYST-RR,[D-Asp3]MCYST-LR and[Dha7]MCYST-LR were identified by high performance liquid chromatography(HPLC),as com-pared with the authentic microcystins.The minor toxins:MCYST FR,[L-Mser7]MCYST-LRand an unknown MCYST which was most likely to be MCYST-(H4)YR were identified with frit-fast atom bombardment liquid chromatography/mass spectrometry(Frit-FAB LC/MS)and aminoacid analysis.The toxigenic diversity in blue-green algae(cyanobacteria)was discussed. | He Zhenrong He Jiawan Yu Minjuan Institute of Hydrobiology,Chinese Academy of Sciences,Wuhan 430072,ChinaQiao Mingye Shen Zhi Wu Liandi Inner Mongolia Environmental Science Research Instìtute,Huhehote 010010,ChinaWu Suozhu Guo Yunfeng Hulunbeer League Environmental Monitoring Station,Inner Mogolia 021008,ChinaFumio Kondo Aichi Prefectural Institute of Public Health,Tsuji-machi,Kita-ku,Nagoya 462,JapanKen-ichi Harada Faculty of Pharmacy,Meijo University,Tempaku,Nagoya 468,Japan | 1997 | Journal of Environmental Sciences1997，9，1： | 6 |
| 3 | PHASE DIAGRAM OF TERNARY SYSTEM PrCl_2-CaCl_2-MgCl_2显示文摘Three surfaces corresponding to the primary crystallization of PrCl3,CaCl2 andMgCl2 respectively,3 univariant curves related to the secondary crystallization and a ternaryeutectic(44.8 wt-% PrCl3,31.8 wt-% CaCl2,546℃)were found in systemPrCl3-CaCl2-MgCl2 by means of DTA.A reaction occurs in this system:L=PrCl3+CaCl2+MgCl2. | ZHENG Chaogui LIU Hongping YE Yupu(Y.P.Yeh) Peking University,Beijing,ChinaQIAO Zhiyu University of Science and Technology Beijing,Beijing,China ZHENG Chaogui Dept.of Chemistry,Peking University,Beijing 100871,China | 1990 | Acta Metallurgica Sinica(English Letters)1990，3，10： | 0 |
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