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. Author manuscript; available in PMC: 2010 Jun 10.

Published in final edited form as: Aust J Chem. 2009 Oct 13;62(10):1300–1307. doi: 10.1071/CH09314

a/ Luminescence spectrum showing the typical decrease of luminescence intensity upon addition of DTPA; b/ DTPA competition batch titration of [Eu(3LI-bis-LYS-1,2-HOPO)]⁻ and [Eu(H(2,2)-1,2-HOPO)]⁻ versus DTPA. The x intercept indicates the difference in pEu between EuDTPA and the two complexes.

Inline graphic — a/ Luminescence spectrum showing the typical decrease of luminescence intensity upon addition of DTPA; b/ DTPA competition batch titration of [Eu(3LI-bis-LYS-1,2-HOPO)]⁻ and [Eu(H(2,2)-1,2-HOPO)]⁻ versus DTPA. The x intercept indicates the difference in pEu between EuDTPA and the two complexes.