1987 Volume 3 Issue 1 Pages 53-54
A new method is proposed for the determination of Cl- in water. An excess amount of Hg2+ is added to the solution containing Cl- to form stable mercuric chloride complexes. Addition of a chloroform solution of 60Co(PDC)3 follows. The free Hg2+ that escapes from the complex formation can substitute for 60Co in 60Co(PDC)3 after shaking, so an equivalent amount of 60Co is released in its ionic form into the aqueous solution. Thus the content of Cl- in water can be determined by measuring the 60Co activity change between the two phases. The detection limit of the proposed procedure can reach 0.05ppm Cl-.
