ABSTRACT
Objective:
To provide the new
quality control means for
Alumen by investigating the elemental differences between calcined
Alumen and its counterfeit processed products of
ammonium alum, and establishing their characteristic chromatogram.
Method:
The contents of 22 inorganic
elements both in calcined
Alumen and processed products of
ammonium alum were determined by means of inductively coupled
plasma (ICP)-optical emission spectrometer-
mass spectrometry (ICP-OES/ICP-MS),SPSS 16.0 was used for
cluster analysis (CA) while SIMCA-P 13.0 with t-test and
Rank-Sum test was used to identify the differential inorganic
elements. In addition, the characteristic spectrum of the inorganic
elements for calcined
Alumen and counterfeit calcined
alumen were established.
Result:
Calcined
Alumen had highest contents of K and Al while counterfeit calcined
Alumen has highest contents of Al and Fe;Cr,Sr,and Mn contents in calcined
Alumen were relatively higher,while Mn,Ti,and Ga contents in processed products of
ammonium alum were relatively higher. The content of K in calcined
Alumen was about 205 times of that of counterfeit products. On the contrary,the average contents of Fe,Ti,Mn and Ga in counterfeit products of
ammonium alum were much higher than those in calcined
Alumen,33,46,38, 27 times, respectively. A total of 18 samples were clustered into two categories in CAcalcined
Alumen and processed products of
ammonium alum. 18 inorganic
elements showed significant difference in contents(P
Conclusion:
This
method can be used for
quality control of calcined
Alumen.