Table 6.

Elemental composition of the CdS QD–chitosan–GO thin film after contact with Co²⁺.

Sample	Element	Corrected RSF	Area	Corrected Area	Ratio (%)
CdS QD–chitosan–GO	C	1.2070	18,606	15,415.1	66.60
	O	3.1048	20,161	6493.5	28.05
	Cd	25.9923	1608	61.9	0.27
	S	2.4319	1267	521	2.25
	N	2.0520	1230	599.4	2.59
	Co	18.5764	1070	57.6	0.29