Laboratory Performance Check Solution Set        
Solution A     Solution B     Solution C  
Element Concentration   Element Concentration   Element Concentration
Ag 50 µg/ml   Cu 200 µg/ml   P 1000 µg/ml
Al 200 µg/ml   Fe 200 µg/ml   Pb 200 µg/ml
As 200 µg/ml   Hg 200 µg/ml   Sb 200 µg/ml
B 200 µg/ml   K 1000 µg/ml   Se 200 µg/ml
Ba 200 µg/ml   Li 200 µg/ml   Si 1000 µg/ml
Be 200 µg/ml   Mg 200 µg/ml   Sr 200 µg/ml
Ca 200 µg/ml   Mn 200 µg/ml   Tl 200 µg/ml
Cd 200 µg/ml   Mo 200 µg/ml   V 200 µg/ml
Co 200 µg/ml   Na 200 µg/ml   Zn 200 µg/ml
Cr 200 µg/ml   Ni 200 µg/ml      
               
               
Matrix: 5% HNO3, Dilution: 1 to 100   Matrix: 5% HNO3, Dilution: 1 to 100   Matrix: 5% HNO3, Dilution: 1 to 100
Catalog Number Volume   Catalog Number Volume   Catalog Number Volume
141-123-011 100 ml   141-123-021 100 ml   141-123-031 100 ml
141-123-015 500 ml   141-123-025 500 ml   141-123-035 500 ml
               
               
Solution D   Solution A, B, C & D Set      
Element Concentration   Catalog Number Volume      
Sn 200 µg/ml   140-123-011 100 ml      
      140-123-015 500 ml      
               
Matrix: 20% HCI, Dilution: 1 to 100            
Element Concentration            
141-123-041 100 ml            
141-123-045 500 ml