Determination of Cu, Zn, Fe, Ni; Sn in electroplating baths

Experimental:

The measurements were performed by using Absorption flame AAS technique with double beam mode. The background correction mode is deuterium background correction.

Sample preparation:

The samples were diluted according to their concentration; 0.1% KCl solution and 3%HNO3 were added and the graduated flask filled to a volume of 100 ml.

Standard preparation:

Cu:prepared standard solution consist of 0.5 / 1.0 / 1.5 / 2.0 mg/l Cu in 0.1% KCl and   3% HNO3

Zn:prepared standard solution consist of 0.3 / 0.6 / 0.9 / 1.2 mg/l Zn in 0.1% KCl and   3% HNO3

Fe:prepared standard solution consist of 0.25 / 0.5 / 1.0 mg/l Fe in 0.1% KCl and 3% HNO3

Ni:Prepared standard solution consist of 0.5 / 1.0 / 2.0 mg/l Ni in 0.1% KCl andc 3% HNO3

Sn:Prepared standard solution consist of 10 / 20 / 30 mg/l Sn in 0.1% KCl and 3% HNO3