Journal of Nanomaterials / 2012 / Article / Tab 1

Research Article

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.

SpectrumCOAlCaCuTeTotal

Without BS-12 (a)
 Spectrum 116.3930.150.6150.121.41.33100
 Spectrum 215.6628.80.4752.382.30.39100
 Spectrum 330.9327.711.6932.764.961.95100
 Mean20.9928.880.9245.082.881.22100
 Std. deviation8.611.220.6610.731.850.78
 Max30.9330.151.6952.384.961.95
 Min15.6627.710.4732.761.40.39

With BS-12 (b)
 Spectrum 116.1030.260.6750.271.351.35100
 Spectrum 215.6528.790.4752.462.290.34100
 Spectrum 330.9327.711.6932.764.912.00100
 Mean20.8928.920.9445.162.851.23100
 Std. deviation8.701.270.6410.781.850.81
 Max30.9330.261.6952.464.912.00
 Min15.6527.710.4732.761.350.34