@article{oai:nitech.repo.nii.ac.jp:00004065,
 author = {Yuchi, Akio and Baba, Junichi and Wada, Hiroko and Nakagawa, Genkichi},
 issue = {1},
 journal = {Analyst},
 month = {Jan},
 note = {The performance of six chelating reagents [ethylenediamine-N,N,N′,N′-tetraacetic acid (EDTA); trans-1,2-cyclohexanediamine-N,N,N′,N′-tetraacetic acid (CDTA); N′-(2-hydroxyethyl)ethylenediamine-N,N,N′-triacetic acid (HEDTA); triethylenetetraamine-N,N,N′,N″,N,N-hexaacetic acid (TTHA); diethylenetriamine-N,N,N′,N″,N-pentaacetic acid (DTPA); and citrate] has been studied for masking zirconium(IV) in the determination of fluoride with an ion-selective electrode. Citrate was not suitable because it produced a prolonged electrode response. Of the aminopolycarboxylates, DTPA has a much greater masking ability than the others. Using DTPA at pH 5-6, fluoride was successfully determined at a concentration of 1 × 10-5 mol dm-3 in the presence of up to 4 × 10-6 mol dm-3 zirconium(IV). The proposed method was applied to the analysis of a number of zirconium(IV) fluoride compounds and ZrF4-based glasses after fusion with sodium carbonate., application/pdf},
 pages = {45--48},
 title = {Masking of zirconium(IV) in the determination of fluoride with an ion-selective electrode: Application to zirconium(IV) fluoride-based glasses},
 volume = {116},
 year = {1991}
}