Bactiquant quantifies bacterial presence by measuring enzyme activity using a sensitive fluorescence technology. The enzyme is located within the surface of the bacterial cell, and can be reached by the added substrate without the need of cell lysis or extraction; hence the needed chemistry is very simple and robust. The assay ensures highly accurate and reproducible results, making the method highly suitable for monitoring dental unit water quality.
BQ-value indicates the bacterial load in the water sample, and studies have shown that with increasing BQ-values the risk of the presence of Legionella increases as well.
|BQ-value in water without free chlorine||CFU/ml equivalent||Risk of Legionella >100 CFU/L
|10||10 - 100||Very low|
|100||100 - 1.000||Medium|
|1.000||1.000 - 10.000||High|
|10.000||10.000 - 100.000+||Very Hhigh|
When free chlorine is present in the water sample, the correlation between BQ-value and CFU changes due to the partly bacteriostatic effect of low chlorine levels.
The procedure for the Bactiquant Dental method is optimized for use by technicians on-site at dental clinics. After one day of training the technician will be certified and able to perform Bactiquant measurements, generating standardized results.
The analysis is performed in three simple steps