Table 5.
The identification and quantitation of labelled alcohols (ethanol and isopropyl alcohol) and their impurity (methanol) in liquid and gel hand sanitiser samples.
| No | Sample dosage form | Sample code | Type of alcohol claimed | Amount of EtOH/IPA claimed (% v/v) | Type of alcohol found | Amount of alcohol found (% v/v) | Amount of MeOH (% v/v) | Amount of MeOH (% to active alcohol) |
|---|---|---|---|---|---|---|---|---|
| 1 | Liquid | SL1 | IPA | 70.0 | IPA | 70.0 | – | – |
| 2 | SL2 | NA | NA | ND | ND | 17.0 | – | |
| 3 | SL3 | EtOH | 75.0 | EtOH | 74.2 | 4.5 | 6.1 | |
| 4 | SL4 | IPA | 70.0 | IPA | 70.3 | – | – | |
| 5 | SL5 | IPA | 70.0 | IPA | 62.6 | 12.1 | 19.4 | |
| 6 | SL6 | EtOH | 83.0 | EtOH | 75.0 | – | – | |
| 7 | SL7 | IPA | 75.0 | IPA | 80.0 | – | – | |
| 8 | SL8 | EtOH | 75.0 | EtOH | 61.2 | 1.2 | 1.9 | |
| 9 | SL9 | NA | NA | ND | ND | – | – | |
| 10 | SL10 | EtOH | 75.0 | EtOH | 81.1 | – | – | |
| 11 | SL11 | EtOH | 78.1 | EtOH | 74.6 | – | – | |
| 12 | SL12 | EtOH | 75.0 | EtOH | 74.8 | – | – | |
| 13 | SL13 | EtOH | 75.0 | EtOH | 77.0 | – | – | |
| 14 | SL14 | IPA | 70.0 | IPA | 73.4 | – | – | |
| 15 | SL15 | IPA | 75.0 | IPA | 74.5 | – | – | |
| 16 | SL16 | EtOH | 75.0 | EtOH | 83.3 | – | – | |
| 17 | SL17 | EtOH | 6.7% | EtOH | < 45.0 | – | – | |
| 18 | SL18 | EtOH | 80.0 | IPA | 66.4 | – | – | |
| 19 | SL19 | EtOH | 70.0 | EtOH | 67.5 | – | – | |
| 20 | SL20 | IPA | 70.0 | IPA | 68.5 | – | – | |
| 21 | SL21 | IPA | 75.5 | IPA | 72.0 | – | – | |
| 22 | SL22 | IPA | 75.0 | IPA | 77.0 | – | – | |
| 23 | SL23 | EtOH | 75.0 | EtOH | 77.0 | – | – | |
| 24 | SL24 | IPA | 72.0 | IPA | 80.0 | – | – | |
| 25 | Gel | SG1 | EtOH | 70.0 | EtOH | 76.9 | – | – |
| 26 | SG2 | EtOH | 66.0 | EtOH | 71.3 | – | – | |
| 27 | SG3 | IPA | 70.0 | IPA | 71.9 | – | – | |
| 28 | SG4 | IPA | 75.0 | IPA | 64.1 | – | – | |
| 29 | SG5 | IPA | 70.0 | IPA | 57.7 | 1.7 | 3.0 | |
| 30 | SG6 | IPA | 70.0 | IPA | 74.3 | – | – | |
| 31 | SG6 | EtOH | 62.0 | EtOH | 64.9 | – | – | |
| 32 | SG7 | EtOH | 62.0 | EtOH | 57.0 | – | – | |
| 33 | SG8 | EtOH | 75.0 | EtOH | 67.6 | < LOQ | NA | |
| 34 | SG9 | EtOH | 68.0 | EtOH | 69.2 | – | – | |
| 35 | SG10 | EtOH | 70.0 | EtOH | < 45.0 | – | – | |
| 36 | SG11 | IPA | 70.0 | IPA | 57.1 | – | – | |
| 37 | SG12 | EtOH | 75.0 | EtOH | 75.4 | – | – | |
| 38 | SG13 | EtOH | 70.0 | EtOH | 46.4 | – | – | |
| 39 | SG14 | EtOH | 75.0 | EtOH | 61.3 | 3.2 | 5.3 | |
| 40 | SG15 | IPA | 75.0 | IPA | < 45.0 | – | – | |
| 41 | SG16 | EtOH | 75.0 | EtOH | 53.0 | – | – | |
| 42 | SG17 | EtOH | 80.0 | ETOH | 70.3 | 3.9 | 5.5 | |
| 43 | SG18 | EtOH | 62.0 | EtOH | 60.5 | – | – | |
| 44 | SG19 | EtOH | 70.0 | EtOH | 69.9 | – | – | |
| 45 | SG20 | EtOH | 60.0—71.5 | EtOH | 61.7 | – | – | |
| 46 | SG21 | EtOH | 60.0—71.5 | EtOH | 60.0 | – | – | |
| 47 | SG22 | EtOH | 68.0 | EtOH | 65.0 | – | – | |
| 48 | SG23 | EtOH | 70.0 | EtOH | 65.3 | – | – | |
| 49 | SG24 | EtOH | 76.0 | EtOH | 72.4 | – | – | |
| 50 | SG25 | IPA | 75.0 | IPA | 74.6 | – | – | |
| 51 | SG26 | EtOH | 75.0 | EtOH | 69.5 | – | – | |
| 52 | SG27 | EtOH | 66.0 | EtOH | 72.3 | – | – | |
| 53 | SG28 | EtOH | 62.0 | EtOH | 63.5 | – | – | |
| 54 | SG29 | EtOH | 75.0 | EtOH | 67.0 | – | – | |
| 55 | SG30 | EtOH | NA | EtOH | 63.0 | – | – | |
| 56 | SG31 | EtOH | NA | EtOH | 73.0 | – | – | |
| 57 | SG32 | EtOH | 68.0 | EtOH | 60.0 | – | – | |
| 58 | SG33 | EtOH | 68.0 | EtOH | 60.0 | – | – | |
| 59 | SG34 | EtOH | 75.0 | EtOH | 77.0 | – | – | |
| 60 | SG35 | EtOH | 65.0 | EtOH | 72.0 | – | – | |
| 61 | SG36 | EtOH | 70.0 | EtOH | 63.8 | – | – | |
| 62 | SG37 | EtOH | 72.9 | EtOH | 72.0 | – | – | |
| 63 | SG38 | IPA | 70.0 | IPA | 52.0 | – | – | |
| 64 | SG39 | EtOH | 75.0 | EtOH | 61.9 | – | – | |
| 65 | SG40 | EtOH | 63.0 | EtOH | 68.4 | – | – | |
| 66 | SG41 | EtOH | 70.0 | EtOH | 71.3 | – | – | |
| 67 | SG42 | EtOH | 75.0 | EtOH | 73.1 | – | – | |
| 68 | SG43 | EtOH | 66.4 | EtOH | 65.1 | – | – | |
| 69 | SG44 | IPA | NA | IPA | 56.3 | – | – |
EtOH ethanol, IPA isopropyl alcohol, MeOH methanol, NA not applicable, ND not detected, LOQ limit of quantitation.