TY - JOUR
T1 - Development of a selective fluorimetric technique for rapid trace determination of zinc using 3-hydroxyflavone
AU - AL-Kindy, Salma M.Z.
AU - Al-Hinai, Khadija H.
AU - Suliman, Fakhr Eldin O.
AU - Al-Lawati, Haider J.
AU - Pillay, Avin
PY - 2011/4
Y1 - 2011/4
N2 - A sensitive and a selective spectrofluorimetric method have been developed for the rapid determination of trace levels of zinc. The method is based on complex formation between zinc and 3-hydroxyflavone (3HF), which displays an intense emission signal around 478 nm. The analytical performance of the method was examined by considering the factors that affect the complex formation such as pH, mole ratio of the metal and solvent type. The optimum conditions for the complex formation were metal to ligand stoichiometric ratio of 1:1 at pH 7.5 with 0.1. M Tris buffer. Under these conditions the detection limit attained was 1.5. ppb. The method was appropriately validated and yielded relative standard deviations of less than 2% (n= 5), which was considered acceptable. It was successfully applied to the trace determination of zinc in drinking water, hair shampoo and pharmaceutical samples.
AB - A sensitive and a selective spectrofluorimetric method have been developed for the rapid determination of trace levels of zinc. The method is based on complex formation between zinc and 3-hydroxyflavone (3HF), which displays an intense emission signal around 478 nm. The analytical performance of the method was examined by considering the factors that affect the complex formation such as pH, mole ratio of the metal and solvent type. The optimum conditions for the complex formation were metal to ligand stoichiometric ratio of 1:1 at pH 7.5 with 0.1. M Tris buffer. Under these conditions the detection limit attained was 1.5. ppb. The method was appropriately validated and yielded relative standard deviations of less than 2% (n= 5), which was considered acceptable. It was successfully applied to the trace determination of zinc in drinking water, hair shampoo and pharmaceutical samples.
KW - Hydroxyflavone
KW - Spectrofluorimetry
KW - Trace levels
KW - Zinc
UR - http://www.scopus.com/inward/record.url?scp=79952042924&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=79952042924&partnerID=8YFLogxK
U2 - 10.1016/j.arabjc.2010.06.029
DO - 10.1016/j.arabjc.2010.06.029
M3 - Article
AN - SCOPUS:79952042924
SN - 1878-5352
VL - 4
SP - 147
EP - 152
JO - Arabian Journal of Chemistry
JF - Arabian Journal of Chemistry
IS - 2
ER -