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Table 1 Analysis of 120 nm latex particles

From: Evaluation of nanoparticle tracking analysis for total virus particle determination

Dilution Measurement No. Particles/frame Completed tracks Mean particle size (nm) Measured conc.(LP/ml) Average measured conc. (LP/ml) Concentration (LP/ml) Measured factor (MF) Theoretical factor (TF) TF/MF
300 1 91* 2896 115 1,52E+09      
2 79* 2407 119 1,27E+09 1,4E+09 4,2E+11    
500 1 120* 4179 100 1,93E+09    0,7 1,7 2,3
2 115* 3999 103 1,86E+09 1,9E+09 9,5E+11    
900 1 87* 2621 125 1,40E+09    1,4 1,8 1,3
2 80* 2253 133 1,29E+09 1,3E+09 1,2E+12    
1000 1 64* 2004 125 1,03E+09      
2 35 755 143 5,69E+08      
3 23 575 131 3,78E+08 4,7E+08 4,7E+11    
1500 1 61* 2005 106 9,92E+08    0,6 1,5 2,6
2 52 1688 110 8,35E+08 8,4E+08 1,3E+12**    
2000 1 29 748 130 4,71E+08    1,7 1,3 0,8
2 33 1004 109 5,38E+08 5,0E+08 1,0E+12**    
3000 1 13* 343 149 2,16E+08    1,3 1,5 1,2
2 24 640 146 3,90E+08      
3 24 681 127 3,94E+08 3,9E+08 1,2E+12**    
        1,15E+12 Final concentration (LP/ml)
  1. * Measurements where the “particle/frame” was higher than 60 or lower than 20 (consequently these measurements were eliminated from final calculation).
  2. **Concentration values with TF/MF factor between 0.8 and 1.2 (these values were used to calculate the original concentration of latex particles).