Abstract:A sensitive and selective method has been developed for chromium ion in fireworks and firecracker, using functional mesoporous silica materials as the absorbents combined with the inductively coupled plasma optical emission spectrometer (ICP-OES) method. The mesoporous silica materials were functionalized with 2-mercaptobenzothiazole utilizing potassium iodide as catalyst and ecofriendly ethanol as solvent, which were applied in fabricating a minicolumn to preconcentrate the chromium solution, concentration of… Show more
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