| Ion | Molar excess of the ion | Found Mo, µg | RSD | Ion | Molar excess of the ion | Found Mo, µg | RSD |
| Co(II) | 50 | 30.0 | 3.5 |
| 50 | 29.3 | 4.9 |
| Ni(II) | 50 | 29.8 | 4.0 | Wine acid | 220 | 30.4 | 5.3 |
| Fe(II) | 50 | 29.8 | 3.8 | Citric acid | 210 | 30.4 | 5.0 |
| Cd(II) | 200 | 29.9 | 5.0 | Complexone III | 10 | 29.8 | 4.9 |
| Al(III) | 200 | 29.8 | 4.9 | Thiocyanate | 300 | 30.2 | 3.5 |
| Fe(III) | 50 | 30.2 | 3.6 | Thiourea | 250 | 29.7 | 4.0 |
| Zr(IV) | 45 | 29.9 | 4.2 | Thiosulfate | 300 | 29.6 | 3.8 |
| Cu(II) | 30 | 30.6 | 4.4 | Sulfate | 400 | 30.5 | 3.4 |
| Hg(II) | 40 | 30.3 | 5.4 | Ascorbic acid | 100 | 30.5 | 4.3 |
| Ti(IV) | 35 | 29.6 | 3.3 | Carbonate | 200 | 29.8 | 5.0 |
| V(IV) | 25 | 29.6 | 3.6 | Fluoride | 230 | 29.8 | 3.4 |
| W(VI) | 15 | 29.0 | 3.8 | Iodide | 320 | 30.2 | 2.9 |
| Cr(III) | 150 | 29.8 | 4.1 | Chloride | 150 | 30.2 | 4.1 |
| Nb(V) | 70 | 30.4 | 5.3 | Phosphate | 210 | 29.8 | 3.7 |
| Ta(V) | 70 | 30.5 | 5.6 | Acetate | 350 | 29.5 | 5.3 |