The Quality of a Sample Depends on Three Factors
1. Discovery - The probability of locating bacteria randomly distributed on a surface.
2. Extraction - The probability of collecting bacteria from a surface
3. Elution - The probability of recovering bacteria from the sampling device
Sampling Proficiency is the product of these three factors and represents the probability of obtaining a representative sample
Here's how the M-Vac compares to other sampling methods:
| Discovery | Extraction | Elution | Sampling Proficiency | |
|---|---|---|---|---|
| Swab | Poor | Fair | Fair | Poor |
| Sponge | Fair | Fair | Fair | Fair |
| Contact Plate | Poor | Fair | N A | Fair |
| M-vac | Excellent | Excellent | Excellent | Excellent |
The M-Vac has a much higher probability of recovering pathogens due to its ability to sample a larger area (up to 10 sq. feet, 9300 sq. cm), scour pathogens from the surface, and collect the sample directly into a bottle.
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