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BioOxy Optical Oxygen Sensor

Overview

A new and innovative technology for measuring oxygen in gaseous and aqueous phase with important advantages over using common Clark type electrodes.

• BioOxy does not consume oxygen during measurements
• Similar performance overall at a lower cost. This helps lower research or operational expenses compared to competitive consumable sensors
• BioOxy can be gamma sterilized

The BioOxy Couples directly to either the Fiber Optic OXY-MICRO Microsensor Oxygen Meter or the FLOX-Oxygen monitoring System.

Options

Order code	Compatibility	Configuration
O2-T0050L250-12011	BioOxy Sensor 50µm Tip ST connector for OxyMicro in a 0.40 x 20 mm cannula	SYR Retractable, 1pc
O2-T0050L250-12011T	BioOxy Sensor 50µm Tip ST connector for OxyMicro in a 1.20 x 40 mm cannula	SYR Retractable Temp Sensor, 1pc
O2-T0050L250-12012	BioOxy Sensor 50µm Tip ST connector for OxyMicro in a 0.40 x 20 mm cannula	SYR Retractable, 2pc
O2-T0050L250-12021	BioOxy Sensor 50µm Tip SMA connector for FLOX or NeoFox in a 0.40 x 20 mm cannula	SYR Retractable , 1pc
O2-T0050L250-12021T	BioOxy Sensor 50µm Tip SMA connector for FLOX or NeoFox in a 1.20 x 40 mm cannula	SYR Retractable TempSensor, 1pc
O2-T0050L250-12022	BioOxy Sensor 50µm Tip SMA connector for FLOX or NeoFox in a 0.40 x 20 mm cannula	SYR Retractable, 2pc

Features

• Retractable sensor
• Oxygen detection using the phase shift between a reference signal and measured signal
• Common sterilization procedure via gamma radiation, ethanol, paracetic acid, ethylene oxide
• Easy cleaning procedure with 3% H₂O₂, ethanol, or common soap solution
• Compatibility with ethanol, methanol, and isopropanol
• No cross-sensitivity for organic solvents such as acetone, toluene, chloroform or methylene chloride and any chlorine gas
• Available with SMA or ST connector
• Sensing tip diameter, ~50μm

Benefits

• Designed for use in gaseous and aqueous solutions
• Easy calibration via a two-point calibration with an oxygen-free environment (nitrogen, sodium sulfite) and an air-saturated environment
• Fast response time t₉₀ ≤ 3 seconds (in gas phase)  t₉₀ ≤ 30 seconds (in pure water)
• Retractable up to 10mm
• No oxygen consumption during measurements

Applications

• Oxygen measurement in small samples
• Bioprocess control

The BioOxy is ideally adapted for examination of small sample volumes thanks to its miniature sensor tip diameter of less than 50μm. The BioOxy is well suited for long-term measurements and biotechnological applications. The signal does not depend on the flow rate of the sample and the measurement principle requires no contact.

The physical principle is based on quenching of luminescence, which is caused by the collision between molecular oxygen and a luminescent dye molecule in the excited state. There is a direct relationship between the measured phase angle and oxygen concentration.  The phase angle decreases when oxygen is present in your sample.  The transfer of the emitted light signal is done optically using high quality fused silica fibers, ensuring a contact performance lot-to-lot.

Specifications

BioOxy Specification

OXYGEN Measurements	Gaseous & Dissolved O2
PROBE SIZE	240 μm with active area ~50 μm. Retractable 10 mm. 27g Syringe Needle, hub to tip needle length 20mm with 0.4mm diameter optical sensor within needle held with a sensor lock. tracks out 10mm exposing the ~50 μm sensing tip
MEASUREMENT RANGE	0-100% O2 0-1000 hPa
LIMIT OF DETECTION	0.05% Oxygen
RESOLUTION	+/- 0.09% O2 or better
ACCURACY @ 20 DEGREE C	+/- 0.4% O2 @ 20.9% O2 +/-0.05% O2 @ 0.2 % O2
MEASUREMENT TEMPERATURE RANGE	0 TO + 80 DEGREE C
RESPONSE TIME (T90)	3 seconds in gas phase 30 seconds in aqueous solution

It is recommended to use 1000 um bifurcated fiber with these sensors.

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