Complexometric determination of gallium with calcein blue as indicator

H.N. Elsheimer

doi:10.1016/0039-9140(67)80051-1

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Complexometric determination of gallium with calcein blue as indicator

H.N. Elsheimer

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Abstract

A metalfluorechromic indicator, Calcein Blue, has been used for the back-titration of milligram amounts of EDTA in presence of gallium complexes. The indicator was used in conjunction with an ultraviolet titration assembly equipped with a cadmium sulphide detector cell and a microammeter for enhanced end-point detection. The result is a convenient and rapid method with an accuracy approaching 0.1 % and a relative standard deviation of about 0.4% for 10 mg of gallium.

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H.N. Elsheimer. 1967. Complexometric determination of gallium with calcein blue as indicator. https://doi.org/10.1016/0039-9140(67)80051-1

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