Table 1.
Model compounds used in the study, their purity, and concentration
| Compound | Purity | Conc. 1 (%) | Conc. 2 (%) | Conc. 3 (%) |
|---|---|---|---|---|
| Acidic sodium carbonate [NaHCO3] | – | 3 | 5 | 10 |
| Albumin | – | 1 | 5 | 10 |
| Ammonium sulphate [NH4SO4] | PA | 1 | 5 | 10 |
| Dry meat extract | – | 1 | 5 | 10 |
| Glucose [C6H12O6] | PA | 1 | 5 | 10 |
| Glycerol [C3H5(OH)3] | Pure | 5 | 7 | – |
| Lactose [C12H22O11] | PA | 1 | 5 | 10 |
| Oleic acid [C17H33COOH] | Pure | 3 | 6 | – |
| P-30a (petroleum compound) | – | 5 | – | – |
| Peptone G | – | 1 | 5 | 10 |
| Phenol | Pure | 1 | 5 | 10 |
| Potassium cyanide [KCN] | Pure | 1 | 5 | 10 |
| Potassium thiocyanate [KSCN] | PA | 1 | 5 | 10 |
| Silicate [SiO4] | Pure | 1 | 5 | 10 |
| Sodium carbonate [Na2CO3] | Pure | 3 | 5 | 10 |
| Sodium nitrate [NaNO3] | PA | 1 | 5 | 10 |
| Sodium nitrite [NaNO2] | PA | 1 | 5 | 10 |
| Sodium sulphate [Na2SO4] | Pure | 1 | 5 | 10 |
| Sodium sulphite [Na2SO3] | PA | 1 | 5 | 10 |
| Sodium thiosulfate (dry) [Na2S2O3] | PA | 5 | – | – |
| Sodium thiosulfate (liquid) [Na2S2O3] | PA | 5 | – | – |
| Sucrose [C12H22O11] | PA | 1 | 5 | 10 |
| Tween (detergent) | Pure | 4 | 6 | – |
aP-30 was vacuum distillate of crude oil (boiling point 135–402 °C) furnished by PKN Orlen oil refinery (Poland) (Wiszniowski et al. 2011)