The YSI 2700 Select Biochemistry Analyzer is for bioprocessing, food and beverage and biofuels applications
It provides rapid, accurate analysis of key nutrients and byproducts, including: glucose, lactate, glutamine, glutamate, ethanol, lactose, sucrose, galactose, hydrogen peroxide, methanol, starch, choline and xylose.
The YSI 2700 can be configured in single or dual analyte mode.
Many of the analytes above can be combined.
Popular combinations include glucose/lactate, glutamine/glutamate, sucrose/glucose and xylose/glucose.
Features include: little or no sample preparation; aspirates 25uL in most applications; one-minute result displayed, printed and stored; mix and match up to two chemistry combinations; automatic calibration and automatic clearing of sample to waste; small footprint (about 1 square foot of bench space); and optional 24-position turntable or monitoring/control assembly available Sample analysis can be carried out either on the benchtop or online.
For many processes, off-line analysis is a good method for monitoring nutrients or byproducts, particularly if consumption or production rates are slow.
As a benchtop analyser, the YSI 2700 Select is easy to use and provides results quickly - in 60 seconds.
Sample volume requirements are low (about 25uL), which allows the user to run as many samples as they want.
Little or no sample preparation is required for many samples.
The YSI 2700 Select can be coupled with the YSI 2710 Turntable for batch analysis.
The 24-position turntable lets a user load samples and walk away.
The instrument will automatically analyse them, print results and send them to a PC.
For processes that require frequent monitoring and regulation, online analysis allows you the freedom to sample automatically and adjust both nutrient and byproduct concentrations.
If a user couples the YSI 2730 Aseptic Monitoring and Control system with the 2700 Select, they can pull samples directly from a bioreactor, measure important nutrients and byproducts, and immediately control the replenishment of nutrients, if needed, while maintaining the sterility of the process.
All system components are sterilisable.
The YSI 2730 Monitoring and Control system pulls sample directly from a bioreactor and pumps it to the YSI 2700 Select at programmed intervals.
After each analysis, an antiseptic reagent, typically a dilute hypochlorite or hydroxide solution, is flushed through the sample lines and remains there until the next cycle to assure sterility.
For those bioprocesses in which loss of cells is a concern, you can connect the YSI system to an online filtration device.
You can adjust system parameters, such as flow rate, to accommodate the needs of the filtration device.
For regulation, connect the YSI 2700 Select to a feed pump.
When nutrient concentration falls below a programmed setpoint, the YSI 2700 Select will signal the feed pump to add nutrient to the bioreactor.
Other system variables, such as sampling interval and concentration setpoint, allows the user to customise the instrument for your process needs.
For example, with processes that consume glucose quickly, the user can configure the system to monitor glucose every few minutes.
For other processes that consume nutrients slowly, monitoring every 30 or 60 minutes may be more appropriate.