| 
      
        | Ion    Added | Tolerance    Limit (µg/ml) | R% | Ion    Added | Tolerance    Limit (µg/ml) | R% |  
        | Sulphate | 576 | 100 | Zr+4 | 200.69 | 100 |  
        | Urea | 600 | 100 | Zn+2 | 19.61 | 100 |  
        | Thiocyanide | 2.3 | 99 | Bi+3 | 41.79 | 100 |  
        | Bromide | 800 | 99.8 | Ni+2 | 20 | 69.7 |  
        | Thiourea | 0.2 | 100 | Ce+4 | 2.80 | 9.5 |  
        | Nitrate | 1550 | 100 | Fe+3 | 1.11 | 100 |  
        | Tetra borate | 98 | 100 | Cu+2 | 1.27 | 99.8 |  
        | Acetate | 118 | 100 | Ru+3 | 1.01 | 100 |  
        | Phosphate | 189.94 | 99.5 | Ag+ | 2.15 | 80 |  
        | Chlorides | 213 | 99.2 | Pt+4 | 2.85 | 100 |  
        | Tartarate | 500 | 98.8 | Sb+2 | 390 | 100 |  
        | Citrate | 189.22 | 100 | Sr2+ | 26.28 | 100 |  
        | Fluoride | 475 | 100 | Se+4 | 23.66 | 100 |  
        | Oxalate | 264 | 100 | V+5 | 5.09 | 100 |  
        | Thiosulphate | 224 | 99.6 | Os+8 | 19.02 | 100 |  
        | U+6 | 142.84 | 100 | Cd+2 | 202.3 | 100 |  
        | Sn+2 | 3.56 | 100 | Sr+2 | 219.05 | 100 |  
        | La+3 | 138.9 | 100 | Mn+2 | 82.39 | 100 |  
        | Pb+2 | 41.44 | 100 | Mg+2 | 53.46 | 99.8 |  
        | Na+ | 23 | 100 | Se+4 | 78.96 | 100 |  
        | Hg+2 | 20.09 | 100 | Co+2 | 70.071 | 100 |  
        | Ba+2 | 205.99 | 99.8 | Al +3 | 40.47 | 100 |  
        | W+6 | 9.19 | 99.8 | Mo+6 | 0.954 | 100 |  |