tailieunhanh - Spectrophotometric methods for the determination of fluoride ion using indole-3-acetic acid interaction with iron(III)

This study is related to the determination of fluoride ion by the conversion of pink-colored Fe(III) and indole3-acetic acid (IAA) into a colorless hexafluoride ferrite complex with the addition of fluoride. The optimum conditions of the complex formation were found to be pH and a temperature of 60 °C. The maximum absorption wavelength of the complex and the detection limit of the method were 525 nm and mg/L, respectively. The interfering effects of the different cations (Ag+, Al3+, Ba2+, Ca2+, Cd2+, Co2+, Cu2+, K+, Mg2+, Na+, Ni2+, Pb2+) and anions (SO2−4, SO2−3, NO−2, I−, Br−, Cl−, SCN−, CH3COO− , H2PO−4, ClO−4) were also investigated. |

TỪ KHÓA LIÊN QUAN
TÀI LIỆU MỚI ĐĂNG
8    164    3    29-12-2024
309    143    0    29-12-2024
6    131    0    29-12-2024
54    154    1    29-12-2024
6    141    0    29-12-2024
5    130    0    29-12-2024