Supplement Table 1.
Ten calibrators, which were used to do calibration and five validators used for checking the validity of inversion algorithm
| Sample type | Sample code | Sample name | Exponent X |
|---|---|---|---|
| Calibration samples (calibrators) | S1 | Sodium acetate anhydrous | 2.426 |
| S2 | Sodium | 2.586 | |
| S3 | Sucrose | 2.238 | |
| S4 | Sodium bisulfite | 2.626 | |
| S5 | Magnesium | 2.627 | |
| S6 | Aluminum | 2.659 | |
| S7 | Silicon | 2.720 | |
| S8 | Calcium sulfate dihydrate | 2.655 | |
| S9 | Ammonium chloride | 2.680 | |
| S10 | Phosphorus | 1.766 | |
| Samples used for verification of calibration (validators) | S11 | Ethylenediamine acetate | 2.346 |
| S12 | Potassium hydrogen carbonate | 2.656 | |
| S13 | Potassium sulfate | 2.701 | |
| S14 | Calcium acetate | 2.614 | |
| S15 | Ammonium sulfate | 2.553 |
Exponent Y was found to be ~3.07 for all the above samples