Table 1.
Number-average (Mn) and weight-average (Mw) molecular weights of PHMG 2 by brand 1.
| Name of HD 3 Brand | Number of Samples 4 | Number-Average MW (Mn, g/mol) |
Weight-Average MW (Mw, g/mol) |
Level of Polymerization | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mean | SD 5 | Min. | Max. | Mean | SD | Min. | Max. | Mean | SD | Min. | Max. | ||
| Oxy | 4 | 514.2 | 32.9 | 465.0 | 532.7 | 534.3 | 22.2 | 501.0 | 547.0 | 3.4 | 0.8 | 2.3 | 3.8 |
| Clean Land | 1 | 422.0 | NA 6 | 422.0 | 422.0 | 441.0 | NA | 441.0 | 441.0 | 2.1 | NA | 2.1 | 2.1 |
| Vegetable Home Cleanup | 8 | 523.3 | 30.5 | 483.0 | 587 | 540.0 | 36.4 | 483.0 | 612..0 | 3.1 | 0.9 | 1.0 | 3.7 |
| Cefu | 3 | 501.3 | 25.4 | 472.0 | 517.7 | 521.7 | 11.8 | 508.0 | 529.0 | 3.2 | 0.8 | 2.3 | 3.7 |
| Atorganic | 2 | 475.0 | 101.8 | 403.0 | 546.9 | 493.0 | 97.6 | 424.0 | 562.0 | 3.9 | 1.4 | 2.0 | 3.9 |
| Oxy Saksak | 102 | 552.0 | 65.8 | 435.0 | 692.2 | 569.8 | 61.4 | 460.0 | 714.7 | 2.9 | 1.2 | 1.0 | 4.0 |
| Lotte Wiselect | 9 | 547.8 | 63.5 | 475.0 | 673.4 | 566.1 | 54.3 | 511.0 | 682.7 | 2.8 | 1.2 | 1.0 | 3.9 |
| Homeplus | 8 | 491.8 | 41.4 | 444.0 | 532.7 | 518.6 | 30.6 | 475.0 | 549.0 | 3.0 | 0.8 | 2.2 | 3.8 |
| p-value 7 | 0.07 | 0.08 | 0.96 | ||||||||||
| Total | 137 | 542.4 | 64.6 | 403.0 | 692.2 | 560.7 | 59.9 | 424.0 | 714.7 | 2.9 | 1.1 | 1.0 | 4.0 |
1 These data have been added to the results from our recent study [9]. 2 PHMG: polyhexamethylene guanidine. 3 HD products were manufactured from a raw ingredient called SKYBIO 1125, containing 25% PHMG as an antimicrobial additive. 4 Imbalance in the number and distribution of MW (Table 2) among HD brands. 5 SD: standard deviation in the unit of g/mol. 6 NA: not available. 7 p-Value for comparing mean values from an ANOVA test, with Clean Land and Atorganic being excluded due to small sample sizes.