2.2. Reagents and samples
All reagents were of analytical reagent grade. The standard
Cd stock solution (1000 gmL−1) was obtained from National
Research Center for CRM’S. Cd working standard solutions
were prepared by means of diluting the standard Cd stock
solution before use. Redistilled water was used for all the experiments.
Paint samples were provided by different manufacturers. All
the samples examined were used to coat woodworks. Six replicates
of each sample were measured in duplicates.