Table 5.
Agreement between results obtained with chemical spot test and FT-IR in the mixed stone group.
| Mixed stones | |||
|---|---|---|---|
| Substances detected (n) | Agreement (n) | Partial agreement (n) | Disagreement (n) |
| Anhydrous uric acid + calcium oxalate monohydrate (3) | 2 | 0 | 1 |
| Calcium oxalate monohydrate + calcium oxalate dihydrate + carbonate apatite (4) | 0 | 2 | 2 |
| Magnesium ammonium phosphate + carbonate apatite + calcium oxalate monohydrate (1) | 0 | 0 | 1 |
| Carbonate apatite + magnesium ammonium phosphate + protein (1) | 0 | 0 | 1 |
| Anhydrous uric acid + calcium oxalate monohydrate + carbonate apatite (1) | 0 | 0 | 1 |
| Anhydrous uric acid + dihydrate uric acid (2) | 1 | 0 | 1 |
| Carbonate apatite + calcium oxalate monohydrate + calcium oxalate dihydrate (3) | 0 | 0 | 3 |
| Calcium oxalate monohydrate + carbonate apatite (2) | 0 | 1 | 1 |
| Calcium oxalate monohydrate + calcium oxalate dihydrate (1) | 0 | 1 | 0 |
| Calcium oxalate dihydrate + carbonate apatite + protein (1) | 0 | 0 | 1 |
|
| |||
| Total (19) | 3 (15.8%) | 4 (21.0%) | 12 (63.2%) |