Limit of Quantification (LOQ)—Percent Coefficient of Variation (%CV) ScanRDI Counts
Test Organism | Sample Dilution | |||||||
---|---|---|---|---|---|---|---|---|
Parameter | None | 1:2 | 1:4 | 1:10 | 1:20 | 1:40 | 1:200 | |
Staphylococcus aureus ATCC 6538 | Mean | 257 | 110 | 57 | 26 | 14 | 8 | 3 |
SD | 13.22 | 12.23 | 12.5 | 4.89 | 1.97 | 3.66 | 2.07 | |
%CV | 5 | 11 | 22 | 19 | 14 | 47 | 83 | |
Pseudomonas aeruginosa ATCC 9027 | Mean | 154 | 84 | 40 | 15 | 9 | 4 | 6 |
SD | 50.14 | 18 | 8.93 | 8.06 | 5.04 | 3.58 | 2.34 | |
%CV | 33 | 22 | 22 | 54 | 55 | 89 | 37 | |
Escherichia coli ATCC 8739 | Mean | 194 | 99 | 53 | 19 | 13 | 7 | 3 |
SD | 5.56 | 9.97 | 13.51 | 1.94 | 2.95 | 1.86 | 1.72 | |
%CV | 3 | 10 | 26 | 10 | 23 | 27 | 57 | |
Candida albicans ATCC 10231 | Mean | 202 | 100 | 57 | 20 | 13 | 8 | 4 |
SD | 14.35 | 20.8 | 9.69 | 5.15 | 2.28 | 2.5 | 1.67 | |
%CV | 7 | 21 | 17 | 26 | 18 | 30 | 42 | |
Aspergillus brasiliensis ATCC 16404 | Mean | 156 | 61 | 30 | 13 | 9 | 4 | 6 |
SD | 23.25 | 11.36 | 7.99 | 3.13 | 5.39 | 2.25 | 2.16 | |
%CV | 15 | 19 | 27 | 24 | 58 | 52 | 38 | |
Bacillus atrophaeus NRRL B4418 (spores) | Mean | 126 | 94 | 52 | 17 | 7 | 5 | 2 |
SD | 32.65 | 10.9 | 14.22 | 6.85 | 1.51 | 2.79 | 2 | |
%CV | 26 | 12 | 28 | 41 | 23 | 54 | 100 |