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Foreign particle detection in food supplement by SEM-EDS technique

826 views - 2019-10-09 09:58:18

 

Sample 1: Cosmetic Powder 

 

EDX Spectrum

 

  • Identify & label each elements with different colors.

  • Deconvolution of overlapping peaks (Ti & Ba) for better quantitative result.

  • Cu & Zn also been detected as trace elements.

 

 

Elemental & Intensity Mapping

 
 

Mixed SE Image
+
Element Map

 

Individual element map

 

Intensity Map of selected element (Ba)

 

Online Deconvolution

Before


Ti and Ba distribution is
same.

 
       

After


Ti and Ba are separated.

 

Sample 2: Foreign Particle in Food Supplement

 

EDX Spectrum

 

  • Heavy metal, Lead (Pb) is detected in the sample.

  • Deconvolution of overlapping peaks (Pb & S) for better quantitative result.

 

 

Elemental & Intensity Mapping

 
  • Elemental mapping of indicate distribution of foreign particle (Pb) as metal contamination.

  • C & Si appear as major elements.

 

  • Intensity Map of show the high concentration of Pb at foreign particle.

 

 

Sample 3: Metal Contamination in Milk Powder

 

EDX spectrum

 

  • Heavy metal, Lead (Pb) is detected in the sample.

  • Sulfur (S) is the essential major element in milk.

  • Deconvolution of overlapping peaks (Pb & S) for better quantitative result.

 

 

Elemental & Intensity Mapping

 
  • Elemental mapping of indicate distribution of foreign particle (Pb) as metal contamination.

 
  • Intensity Map of show the high concentration of Pb at foreign particle.

 

   

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