TY - JOUR
T1 - Fluorometric detection of fluoride ion by ligand exchange reaction with 3-hydroxyflavone coordinated to a zirconium(iv)–EDTA complex
AU - Takahashi, Yukiko
AU - Pacheco Tanaka, David A.
AU - Matsunaga, Hideyuki
AU - Suzuki, Toshishige M.
PY - 2002/3/25
Y1 - 2002/3/25
N2 - An aqueous solution composed of [Zr(H2O)2edta]·2H2O and 3-hydroxyflavone (flavonol) exhibits an intense blue fluorescence (Λmax = 460 nm) upon excitation at 400 nm and the signal intensity decreases with the addition of fluoride ion. This observation has been interpreted by the ligand exchange of flavonol coordinated to Zr(iv) with fluoride ion. Based on this phenomenon, we have fabricated a simple fluorescent detection system of fluoride ion available in aqueous media. The present signaling system provides a simple, rapid and selective detection method of fluoride ion, which covers the concentration range from 1 × 10−3 to 3 × 10−6 M without any significant interference from common anions.
AB - An aqueous solution composed of [Zr(H2O)2edta]·2H2O and 3-hydroxyflavone (flavonol) exhibits an intense blue fluorescence (Λmax = 460 nm) upon excitation at 400 nm and the signal intensity decreases with the addition of fluoride ion. This observation has been interpreted by the ligand exchange of flavonol coordinated to Zr(iv) with fluoride ion. Based on this phenomenon, we have fabricated a simple fluorescent detection system of fluoride ion available in aqueous media. The present signaling system provides a simple, rapid and selective detection method of fluoride ion, which covers the concentration range from 1 × 10−3 to 3 × 10−6 M without any significant interference from common anions.
UR - https://www.scopus.com/pages/publications/0036009271
U2 - 10.1039/b111702e
DO - 10.1039/b111702e
M3 - Article
AN - SCOPUS:0036009271
SN - 0300-9580
VL - 2
SP - 759
EP - 762
JO - Journal of the Chemical Society. Perkin Transactions 2
JF - Journal of the Chemical Society. Perkin Transactions 2
IS - 4
ER -