TABLE 5.
Total measured concentrations, CVs and mode diameters for monomodal polystyrene samples F (CPN100), B (CPN150), E (CPN200) and H (CPN240)
| Technique | Mean concentration of F/B/E/H (NPs/ml)*1010 | Mean concentration CV (%) of F/B/E/H | Diameter (nm) of F/B/E/H 100/152/203/240 | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| NTA | 1.10 | 1.39 | 1.85 | 2.06 | 31.3 | 7.6 | 19.6 | 22.9 | 103 | 153 | 195 | 229 |
| TRPS | 1.06 | 1.10 | 1.15 | 1.33 | 8.3 | 2.1 | 13.3 | 4.6 | 98 | 148 | 203 | 243 |
| nFCM | 0.79 | 0.94 | 0.72 | 0.96 | 7.5 | 3.7 | 12.4 | 11.1 | 98 | 147 | 207 | 238 |
| CLS | 0.77 a | 1.14 | 1.08 a | 1.11 | 21.1 | 4.4 | 17.5 | 7.2 | 97 b | 136 b | 185 | 227 |
| AF4‐MALS | 1.07 | 1.01 | 0.97 | 5.80 | – | 101 | 148 | 196 | 232 | |||
| MADLS | 1.43 | 1.20 | 0.85 | 0.62 | 0.6 | 2.1 | 3.9 | 7.8 | 106 | 151 | 200 | 230 |
| 87 c | 133 c | 182 c | 214 c | |||||||||
a
without baseline‐subtraction total concentration can be much higher; for example, for sample E and F max concentrations can be up to 50x higher than baseline‐corrected concentrations (see SI/Table S3).
b
run 2 for sample B has a satellite peak at 169 nm (< 3%) and run 1 for sample F additional peaks at 180 and 313 nm (< 1%).
c
as derived from PCD (slanted) as opposed to intensity‐weighted PSD.