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Zirconium is titrated directly with EDTA in acidic aqueous solution (buffer, pH 1). Eriochrome cyanine R is used as the indicator for this procedure. The equivalence point is determined with the Optrode at a wavelength of 520 nm.

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Metrohm Viet Nam

Phan Dinh Giot
70000 Ho Chi Minh

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