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3 protocols using terbium 3 nitrate pentahydrate

1

Synthesis of Luminescent Lanthanide Compounds

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Calcium chloride (CaCl2, ≥95%), ammonium fluoride (NH4F, p.a.), terbium(III) nitrate pentahydrate (Tb(NO3)3·5H2O, 99.9%) and gadolinium(III) chloride hexahydrate (GdCl3·6H2O, 99%) were purchased from Sigma-Aldrich and used without further purification.
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2

Lanthanide Complexes Synthesis

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Europium(III) nitrate hydrate Eu(NO3)3⋅H2O, terbium(III) nitrate pentahydrate Tb(NO3)3⋅5H2O, oxalic acid dihydrate (COOH)2⋅2H2O, and anhydrous dimethylformamide (DMF) were purchased from Sigma-Aldrich and used without further purification.
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3

Synthesis and Characterization of Lanthanide Complexes

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Cyclam (1,4,8,11-tetraazacyclotetradecane) from CheMatech (Dijon, France) was stored in vacuum desiccators. The 2-(chloromethyl) pyridine hydrochloride (picolyl chloride chlorohydrate) was purchased from Sigma-Aldrich. Formaldehyde from Sigma-Aldrich (37% in water, density 1.08) contained 10–15% of methanol as stabilizer to prevent polymerization. The solvents such as diethyl ether (C2H5)2O, dichloromethane (CH2Cl2), acetonitrile (CH3CN) and chloroform (CHCl3) from Sigma-Aldrich were anhydrous with a purity higher than 99.5%. Sodium iodide (NaI), magnesium sulphate (MgSO4) and ammonium acetate (CH3CO2NH4+) were also purchased from Sigma-Aldrich. Four lanthanides were purchased from Sigma-Aldrich: gadolinium(III) nitrate hexahydrate (Gd(NO3)3·6H2O), europium(III) nitrate pentahydrate (Eu(NO3)3·5H2O), terbium(III) nitrate pentahydrate (Tb(NO3)3·5H2O) and dysprosium(III) nitrate hydrate (Dy(NO3)3·xH2O). Negative urine control was provided by Sigma-Aldrich.
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