Concentration,Brand
0.95,A
0.82,A
0.78,A
0.96,A
0.71,A
0.71,A
0.86,A
0.99,A
0.68,A
0.72,A
0.89,B
0.91,B
0.94,B
0.94,B
0.9,B
0.89,B
0.9,B
0.93,B