Abstract
Triethylenetetramine dihydrochloride (TETA) has been used for the treatment of Wilson's disease which is a metabolic disorder that prevents its victims from eliminating excess copper. TETA was scheduled for toxicological evaluation because of a deficiency of such information. Analytical chemical procedures to determine the purity of the drug as well as the proper concentration and stability of the drug in dosed water were prerequisites for the toxicological tests. A high performance liquid chromatography (HPLC) procedure employing ion-pairing and conductivity detection has been developed for the analysis of TETA in dosed water at levels as low as 10 micrograms/mL and for the determination of drug purity. The conductivity detector response was linear over the concentration range of 10 to 100 micrograms/mL. Data are presented concerning the stability of the drug in water during ambient storage and after autoclaving. An ancillary colorimetric procedure for the analysis of aqueous TETA solutions is also presented which is based on measuring the absorbance of the colored TETA copper chelate at 599 nm. The HPLC procedure is applicable to the analysis of TETA and the chemically similar polyamines spermidine and spermine in admixture.
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