LITHIUM REAGENT COMPOSITION, AND METHOD AND DEVICE FOR DETERMINING LITHIUM ION AMOUNT USING SAME

摘要

[Problem] To provide to a reagent composition used in quantitative measurement of lithium in aqueous solutions such as biological specimens and environmental liquid samples by a simple colorimeter or ultraviolet-visible light spectrophotometer immediately, a reagent composition which permits to measure a concentration of lithium by visual observation, and a method and apparatus for measuring lithium ion by using the reagent.;[Solution] A reagent composition for measuring lithium comprising F28 tetraphenylporphyrin compound as chelating agent, including further a water-soluble organic solvent, a pH modifier and a stabilizer, and a method and apparatus for measuring lithium ion by using the reagent.

主权项

1. A lithium reagent composition for measuring the quantity of lithium, characterized by comprising a compound having a structure represented by the formula (I): in which all hydrogens bonded to carbons of a tetraphenylporphyrin are replaced by fluorine atoms, a water-miscible organic solvent selected from the group consisting of dimethylsulfoxide (DMSO), dimethylformamide (DMF) and dimethylacetamide (DMA), and a pH modifier for adjusting the pH to a range from pH 5 to pH 12.