is based on a patented technology that allows it to ‘differentiate” between the
sample evolved CO2 and the pre-existing CO2 in the system.
Because of this capability, a MicroRespirometer can sensitively quantify minute
amount of sample evolved CO2, with accuracy and precision, regardless
of the level of the pre-existing CO2 in the system. The MicroRespirometer
technology, therefore, is totally different from the systems that monitor
headspace CO2 concentrations or the systems that exhaustively absorb
the CO2. (The systems that exhaustively absorb CO2 would
never be a true real-time method because they can never finish absorbing all
the evolved CO2 in the system.)
How does a MicroRespirometer work? First, it establishes a
steady-state CO2 absorption/evolution between the reagent and the
sample (no physical contact between the two) within a 10-minute pre-assay shaking
period. After the steady state is established, the CO2 absorption
rate of the reagent equals the CO2 evolution rate of the sample in
the system. This is equivalent to the situation that the stream of the evolved CO2
is instantaneously and quantitatively “flowing into” (absorbed by) the reagent.
The MicroRespirometer then determines the CO2 absorption rate of the
reagent as the respiration rate of the sample.
The MicroRes technology sets a new standard for respiration rate determination with sensitivity (sub µLCO2/h),
simplicity (test on site without a laboratory), speed, reliability
(excellent resolution at low respiration rates) and low cost (<$0.75/test).
technology is a practical solution for real-time determination of
microbial activities: a long-sought alternative to the traditional cultural methods, which require 2-5
days to obtain a result. The MicroRes technology thus has immediate applications
to real-time food quality/food safety examinations, cell respiration, paint bacterial tests, agrochemical bacterial tests and other biodegradtion rate
The MicroRes technology
has been tested and validated in many academic studies over the years
(peer-reviewed technical journal publications available upon request). For your
special need or application of the MicroRes technology, please contact us for a free