We used a conductometric gravimetric and complexometric
procedure for BG determination in water. The proposed
procedure is simple, fast, precise, and inexpensive. The linear
range for the determination of BG in the presence of b-CD
at 25 C was 108–103 molL1 and with AgNO3 was
103–105 molL1. Therefore, we can say between these two
methods, the complexometric titration is more appropriate
for the determination of BG. Also we investigated on thermodynamic
parameters of BG–CD complex. In addition a simultaneous
determination of BG and MG was also performed.
The results show that this method is very suitable for the determination
of trace level of BG in water.