| 
      
        | Solvent    name | Parameter | Spike    levels |  
        | LOQ | 50s% | 100% | 150% |  
        | Benzene | Conc. Of solvent (ppm) Conc. Of spiked solvent (ppm)
 % Mean Recoverya
 | 0.9 0.9
 100.0
 | 1.1 1.0
 107.0
 | 2.3 2.1
 109.5
 | 3.5 3.1
 109.6
 |  
        | Toluene | Conc. Of solvent (ppm) Conc. Of spiked solvent (ppm)
 % Mean Recoverya
 | 3.5 5.0
 122.1
 | 51.8 55.3
 104.4
 | 103.7 107.7
 102.8
 | 155.5 166.1
 104.8
 |  
        | Chloro benzene | Conc. Of solvent (ppm) Conc. Of spiked solvent (ppm)
 % Mean Recoverya
 | 2.6 2.7
 103.8
 | 51.6 52.2
 101.6
 | 103.2 103.2
 100.0
 | 154.7 159.3
 104.0
 |  |