Fluorimetric determination of trace quantities of mercury as an ion-association complex with rhodamine 6G in the presence of iodide.
A procedure for the indirect fluorimetric determination of mercury(II) is described, based on selective extraction of the ion-association complex formed between triiodomercurate(II) and Rhodamine 6G and subsequent release of the fluorescent Rhodamine 6G. The calibration curve is linear up to 1 ppm of mercury(II). The few interferences are easily overcome.
Vijayakumar
M
M
Department of Chemistry, Indian Institute of Technology, Madras 600 036, India.
Ramakrishna
T V
TV
Aravamudan
G
G