|The BioSampler® collects bioaerosols in liquid for sample times up to eight hours when used in connection with the sonic-flow Vac-U-Go Sampler. Use BioSampler for IAQ investigations, infection control in hospitals and veterinary clinics, biological research, infectious disease investigations in public buildings, and safety concerns in the food handling industry.|
|Up to 8 hours|
|Sonic flow through BioSampler nozzles (12.5 L/min)|
Water or more viscous liquids such as ViaTrap mineral oil
|Tubing||1/4-inch ID and 3/8-inch ID|
Bioaerosols are airborne particles of biological origin (e.g., bacteria, fungi, pollen, viruses) and their by-products such as endotoxins or mycotoxins and other fragments. While there is no standardized method for bioaerosol collection at this time, many organizations, including SKC, are researching improved measurement techniques. The BioSampler is a result of SKC's work with leading scientists at the University of Cincinnati.
|||U.S. Patent No. 5,902,385 (device)|
|*||All-glass Impinger (AGI-30) 30 refers to the distance in millimeters between the inlet stem or jet and the base of the impinger.|
|||U.S. Patent No. 5,904,752 (method)|
Sampling with the BioSampler
The BioSampler must be operated with a sonic flow pump, such as the Vac-U-Go Sampler, that can maintain 15 inches mercury or 0.5 of an atmosphere of downstream pressure in the system. The BioSampler’s three tangential nozzles act as critical (sonic) orifices, each permitting 4.2 L/min of ambient air to pass through for a total flow rate of approximately 12.5 L/min.
BioSampler samples provide many analysis options.
Although the topic of much discussion, no performance criteria for bioaerosol sampling have been adopted at this time (i.e., experimentally determined values to assess the suitability of a collection method for a specific application).4
Two performance characteristics are critical when choosing a bioaerosol sampler:
Figure 1. (click to enlarge)
Test particle: PSL (Polystyrene Latex Beads)
Collection fluid: 20 ml deionized water
Sampling flow rate: 12.5 L/min BioSampler Collection Efficiency