Advanced Analytical Technology
The FLEX2 Basic test menu is configured with advanced chemistry and gas analysis technology that is integrated with robotics.
Chemistries
Glucose, lactate, glutamine, glutamate, ammonium, sodium, potassium, and calcium measurements are performed using electrochemical biosensors integrated into one credit-card-sized component.
Broad analytical range with improved low-end accuracy
The lower analytical range has been extended to provide accurate results to 0.10 g/L for glucose/lactate and 0.10 mmol/L for glutamine/glutamate.
FLEX2 Basic A Onboard auto-dilutions
Robotic automation and a precise metering syringe perform all dilutions on board the Basic A, eliminating time-intensive manual dilutions and error associated with manual techniques. The use of onboard auto-dilutions on the FLEX2 Basic A provides the broadest analytical range of any cell culture analyzer.
Photometric detection methods used by other analyzers often require time-consuming, manual pre-dilution of high cell concentration samples to avoid poor measurement accuracy. FLEX2 Basic electrochemistry assays provide accurate results regardless of cell concentration.
Analyte specificity
Nova’s biosensors are developed specifically for cell culture applications, where processes typically utilize extremely complex media formulations. These electrochemistry detection methods provide excellent specificity for the analyte of interest.
High throughput chemistry analysis
FLEX2 Basic analyzers are capable of analyzing a full chemistry panel using 135 μL of sample in 120 seconds, or a throughput of 30 samples per hour. Full 96-well plates can be analyzed in about three hours.
Gases
pH, PCO2, and PO2 measurements are performed by potentiometric and amperometric biosensors in the maintenance-free, disposable MicroSensor Card.
Improved accuracy
Unlike hospital blood gas analyzers, which are often used for cell culture analysis, Nova’s algorithms for measuring pH, PCO2, and PO2 were specifically developed for cell culture applications. These algorithms are optimized for mammalian cultures, which typically exhibit much higher oxygen consumption and carbon dioxide production rates compared to human blood cells. FLEX2 Basic ensures accurate pH and gas values even in cultures with high cell densities.
Gas and pH values available in manual and 96-well plate analysis modes
The user can configure FLEX2 Basic to provide gas and pH results from both manual samples and 96-well microtiter plate samples.