Biosen analyzers perform lactate and glucose measurements used for monitoring performance in sport. Biosen analyzers are used by professional football clubs, national sporting institutes and in endurance sport to improve athlete performances over time.

Biosen analyzers use a special chip sensor technology to deliver fast measurement and high accuracy at a low cost per test.

Due to the long life of the sensor chip the system requires little maintenance and features such as the touch screen and large memory add to Biosen analyzer’s user-friendliness.

All Biosen analyzers are supplied with interface to connect to lab information systems (LIS). An integrated barcode reader and printer are also available with most configurations.

Biosen can measure blood, plasma or serum can be used to provide glucose and lactate measurements with excellent precision (less than >2% CV) over a wide measurement range.

The Biosen range includes three different models, each suited to different applications and volumes of testing: 

• Biosen C-Line GP+  : Up to 5 samples
• Biosen C-Line Clinic : Up to 20 samples
• Biosen S-Line Lab+ : Up to 63 samples

Analyzers can be ordered as a one or two channel system allowing measurements of either glucose or lactate, or both.

Key features of Biosen glucose analyzers:

• Touch screen
• Multilingual display
• Results in 20­25 seconds
• Up to 160 results an hour
• Measuring from whole blood, plasma and serum
• Automatic calibration
• High precision  CV 1.5 % at 12 mmol/l
• Measuring range 0.5 - 50 mmol/L for glucose and 0.5 - 40 mmol/L for lactate
• Chip-sensor life-time: Glucose 7,500 tests (60 days); lactate 6,000 tests (50 days)
• Sample stability up to 5 days at room temperature (refrigeration recommended)
• PC, network and printer connectivity via RS232C interfaces
• Stores up to 1,000 results
• Barcode option available on all models

During endurance exercises such as long-distance running and cycling, when the demand for energy is high, lactate is produced faster than the ability of the tissues to remove it. As a result lactate concentration in the blood begins to rise.

The use of a lactate analyser helps coaches and athletes to determine optimum training programs, define training zones, and avoid inefficient training exercises.

Intense training teaches the body to use lactate as a source of fuel on a par with the carbohydrates stored in muscle tissue and blood sugar. Athletes increase their lactate threshold by training harder, this means their blood lactate increases later and they can maintain a higher work-load.

In fitness, sports, and cardio-rehabilitation measuring lactate is supportive to define training intensities for maximum fat catabolism, increases in endurance, and avoid critical over-exhaustion.

The measurement of lactate and glucose on Biosen analyzers is based on an electrochemical principle. The sample is precisely taken up by the user with a 20 µl end-to-end capillary and transferred into the EKF safe-lock cup prefilled with 1 ml of hemolysis solution.

The cup is then closed and gently shaken for mixture and hemolysis of the sample. After insertion into the analyser the sample is automatically taken up and moved to the sensor(s). 

Here the ß-D glucose or L-lactate contained in the sample is converted enzymatically with the help of the immobilised enzyme glucose oxidase / lactate oxidase on the chip sensor. The H2O2 generated by the reaction is detected at the electrode. The amperometric signal (sensor current) is proportional to the glucose/lactate concentration in the sample. Following a short flush the system is ready for the next measurement.

The Biosen analysers are calibrated automatically with a solution of known concentration (EKF Multistandard). Efficient calibration schemes can be selected by the user.

EKF provides a complete range of test solutions for quality control to meet the standards of quality management. Separate quality control (QC) positions are available besides the regular sample positions for automated QC measurement and storage as QC results in the data memory (on all models except Biosen C-Line Sport).

A STAT position ensures that emergency samples can be analysed immediately at any time.