Facile Synthesis of Calcium Carbonate Nanoparticles from Cockle Shells

Table 1

EDX profiles of cockle shells powders before (a) and after (b) the addition of 2 mL BS-12. No significant change in the presence of BS-12.

Spectrum	C	O	Al	Ca	Cu	Te	Total
Without BS-12 (a)
Spectrum 1	16.39	30.15	0.61	50.12	1.4	1.33	100
Spectrum 2	15.66	28.8	0.47	52.38	2.3	0.39	100
Spectrum 3	30.93	27.71	1.69	32.76	4.96	1.95	100
Mean	20.99	28.88	0.92	45.08	2.88	1.22	100
Std. deviation	8.61	1.22	0.66	10.73	1.85	0.78
Max	30.93	30.15	1.69	52.38	4.96	1.95
Min	15.66	27.71	0.47	32.76	1.4	0.39
With BS-12 (b)
Spectrum 1	16.10	30.26	0.67	50.27	1.35	1.35	100
Spectrum 2	15.65	28.79	0.47	52.46	2.29	0.34	100
Spectrum 3	30.93	27.71	1.69	32.76	4.91	2.00	100
Mean	20.89	28.92	0.94	45.16	2.85	1.23	100
Std. deviation	8.70	1.27	0.64	10.78	1.85	0.81
Max	30.93	30.26	1.69	52.46	4.91	2.00
Min	15.65	27.71	0.47	32.76	1.35	0.34