Chem. J. Chinese Universities ›› 2000, Vol. 21 ›› Issue (4): 520.

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Relaxivities of Gadolinium Heteropoly Complexes in Aqueous Solution for MRI Contrast Agent

LI Jian-Xin, CHEN Ya-Guang, LIU Qun, SUN Zhen-Gang, LIU Jing-Fu    

  1. Department of Chemistry, Northeast Normal University, Changchun 130024, China
  • Received:1999-11-03 Online:2000-04-24 Published:2000-04-24

Abstract: The relaxivities of two gadolinium heteropoly complexes β-K17 [(GdO)3(SiW9O34 )2]·20H2Oand K13 [Gd(GeW11O39 )2]·20H2Oin aqueous solution have been measured. Their relaxivities are 16.27 and 16.41 mmol-1 ·s-1 ·L, respectively. The results indicate that the two gadolinium heteropoly complexes may be potential contrast agents for MRI.

Key words: Gadolinium, Heteropoly complex, MRI contrast agent, Relaxivity

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