L-Glutathione Reduced 70-18-8
The thiol group of a tripeptide formed by glutamic acid, cysteine, and glycine. It is an antioxidant that can prevent damage to important cellular components by reactive oxygen species such as free radicals and peroxides.
CAS NO:70-18-8
Product Name :L-Glutathione Reduced
Molecular formula C10H17N3O6S
Molecular Weight 307.32348
EINECS NO:200-725-4
IUPAC nominate:(2S)-2-amino-5-[[(2R)-1-(carboxymethylamino)-1-oxo-3-sulfanylpropan-2-
inchi
InChI=1S/C10H17N3O6S/c11-5(10(18)19)1-2-7(14)13-6(4-20)9(17)12-3-8(15)16/h5-6,20H,1-4,11H2,(H,12,17)(H,13,14)(H,15,16)(H,18,19)/t5-,6-/m0/s1
InChIkey
RWSXRVCMGQZWBV-WDSKDSINSA-N
Canonical Smiles
C(CC(=O)N[C@@H](CS)C(=O)NCC(=O)O)[C@@H](C(=O)O)N
appearance White or off white powder
determination 99% minutes
chloride 200 ppm
sulfate 300 ppm
Amonium 200 ppm
iron 10ppm
arsenic 2 ppm
heavy metal 10ppm
Cadmium (Cd) 1ppm
Lead (Pb) 3 ppm
Sulfated ash 0.1%
Dry weight loss 0.5%
Shelf life Properly stored for two years.
PHYSICAL PROPERTIES
Magnesium oxide (MgO), or magnesia, is a white hygroscopic solid mineral that occurs naturally as periclase and is a source of magnesium. It has an empirical formula of MgO. Pure MgO is not conductive and has a high resistance to electric current at room temperature.
APPLICATION
1.Heating elements. MgO is as a refractory material. MgO is used as a basic refractory material for crucibles.
2.Fireproofing. As a construction material, magnesium oxide wallboards have several attractive characteristics: fire resistance, termite resistance, moisture resistance, mold and mildew resistance, and strength.
3.Gas mantles. Most gas mantles utilize magnesium oxide.
4.Magnesium oxide is used extensively in the soil and groundwater remediation, wastewater treatment, drinking water treatment, air emissions treatment, and waste treatment industries for its acid buffering capacity and related effectiveness in stabilizing dissolved heavy metal species.
5.Medical.Magnesium oxide is used for relief of heartburn and indigestion, as an antacid, magnesium supplement, and as a short-term laxative. It is also used to improve symptoms of indigestion. Side effects of magnesium oxide may include nausea and cramping.
6.As a food additive, it is used as an anticaking agent.
This product is one of the optical transmitter cyanobacteria and red algae, using ultraviolet light absorption principle, protection class ip68, can be installed directly into the formula, suitable for all occasions need to measure blue-green algae, such as marine environmental monitoring and other industries.
Technical parameters
Measurement range:
Blue algae: 0~100ug/l (bga-pc)
Red algae: 0~80ug/l(bga-pe)
Resolution: 0.01ug/l
Accuracy: ±1%f.S.
Working temperature: 0~40'c.
Working pressure:
Features
* oxygen pressure range 2 mbar - 3bar
* zirconium dioxide (zro2 ) sensing elements
* non-consumption technology
* integral heating element
* no need for temperature stabilisation
* no reference gas required
* high accuracy
* linear output signal
* operates with external interface boards
Specifications
Heater voltage:
Porous cap (15mm): 4.35v dc +/- 0.1v dc (1.85a)
Stand by: 2v dc (0.85a)
Pump resistance @ 700'C: < 6kOhm
Permissible gas temperature: -100 to 250C
Gas flow rate: 0 to 10 m/s
Repetitive permissible acceleration: 5 g
Incidental permissible acceleration: 30 g
Performance
Output î¼a @ 20.9% o2 80 to 120
Response time t90 (s) from 20.9% to 0% o2 < 15
Zero current î¼a in n2 < 2.5
Linearity % o2 deviation @ 10% o2 0.6
Lifetime
Output drift % change in output @ 3 months < 1
Operating life months until 85% original output of 20.9% o2 > 24
Environmental
Humidity sensitivity % o2 change: 0% to 95% rh @ 40â?? < 0.7
Co sensitivity % (change o2 reading) / % co2 @ 5% co2 0.1
Pressure sensitivity (% change of output)/(% change of pressure) @ 20kpa < 0.1
Features:
* Virtually no influence from CO2, CO, H2S, NO, H2
* Temperature compensation circuit included
* Good linearity
* No position dependency
* Stable output signal
* No external power supply required for sensor operation
* No warmup time is required
Applications:
* Safety - Air conditioners, oxygen detectors, fire detectors, fuel cell systems
* Measurement - Oxygen monitors in flue gas
* Biotechnology - Oxygen incubators, anaerobic cultivators
* Food industry - Refrigeration, greenhouses
The Figaro Oxygen Sensor SK-25F is a unique galvanic cell type oxygen sensor. Its most notable features are no influence from CO2, good linearity up to 30% oxygen, and excellent chemical durability. This feature makes the sensor ideal for oxygen monitoring in various applications such as the biochemical field, food industry, and domestic safety applications.
Specification:
Measurement range: 0~30% O2
Accuracy: ±1% full scale
Operating conditions
Atmospheric pressure: 1013hPa ± 20%
Temperature: -10~50'C
Relative humidity: 0~99%RH (no condensation)
Response time (90%): â?¤ 15 seconds
Initial output voltage under factory test conditions: 5.5~8.5mV
Fcatory test conditions
Atmospheric pressure: 1013hPa
Temperature: 25±5'C
Life expectancy at 20'C in normal air: approx. 3 years
SO-B0-001 Limiting Current Type Zirconia Oxygen Sensor Operational Principle
When voltage is applied to a zirconia electrolyte cell, oxygen is pumped through the zirconia disc from the cathode side to the anode side because the carriers of the current flowing through the zirconia electrolyte are oxygen ions. By attaching a cap with a pinhole on the cathode side of the cell and by increasing the voltage over the cell the current shows saturation due to the rate limiting step in the transfer of oxygen to the cathode. This saturation current is called limiting current and is nearly proportional to the ambient oxygen concentration.
Below the advantages of the Zirconia Oxygen Sensor SO-B0-001:
* Measuring range 10 ppm to 1000ppm oxygen
* High accuracy
* For many types a more or less linear characteristic
* Small temperature dependence of the sensor signal
* Low interference with other gases
* Long service life
* In many cases "Single point calibration" necessary only once
SO-B0-001 Limiting Current Type Zirconia Oxygen Sensor Applications:
* Medical
* Laboratory
* Food industry
* Household/Gastronomy
* Measuring technique
* Security technology/Monitoring
* (Electrical-) industry
SO-B0-001 Limiting Current Type Zirconia Oxygen Sensor Characteristic Data:
* TO8 Housing
* Measuring gas: Oxygen concentration
* Measuring medium: Gaseous atmosphere
* Measuring principle: Limiting current type sensor
* Measuring ranges: 10 ppm - 1000 ppm O2
* Output current: 70 A - 140 A
* Accuracy: ±20 ppm O2
* Reproducibility:
LOX-02-F LuminOx Flow-through Optical Oxygen Sensor General Description
The LuminOx Flow-Through Optical Oxygen Sensor Allows For A Clean Gas Sample Stream Directly Into The Sensor Which Can Be Completely Removed From The Process Environment.
The LuminOx Flow-through Optical Oxygen Sensor is developed and manufactured by SST, it is part of the LuminOx family, which is a range of factory calibrated oxygen sensors which measure ambient oxygen levels using the principle of fluorescence quenching by oxygen, also known as luminescence quenching.
The LuminOx Flow-through Optical Oxygen Sensor (LOX-02-F) is an extension to the standard range of LuminOx oxygen sensors. The original LOX-02 sensor was designed to be completely immersed in the sample gas environment as the base of the sensor is not gas-tight.
The flow-through housing style is sealed on the base which allows for a clean gas sample stream into the sensor which can be completely removed from the process environment. A flow-through housing allows for better sample gas management and options in terms of where the sensor can be situated.
The patented technology allows SST to produce a range of sensors that are based on a non-depleting operating principle. This can contribute to the LuminOx sensors having a comparably longer lifetime that other competitor technologies, such as galvanic sensors, for similar applications.
LOX-02-F LuminOx Flow-through Optical Oxygen Sensor Features
* Luminescence-based optical technology, NOT electrochemical
* Contains no hazardous materials; RoHS & REACH compliant
* Connects directly to a microcontroller without any additional circuitry
* Factory calibrated
* High accuracy, fast response
* Maintenance free
LOX-02-F LuminOx Flow-through Optical Oxygen Sensor Benefits
* Compact, flow-through housing with sealed base
* Low power, long life due to non-depleting sensing principle
* Low cos
OXY-LC Oxygen Sensor Interface Board Description
The OXY-LC Oxygen Sensor Interface Electronics provides the necessary electronics to power and control SST range of zirconium dioxide (ZrO2) sensors.
The OXY-LC Oxygen Sensor offers various user configurable output variants RS485, PWM, 0-10Vdc and 4-20mA. The RS485 Modbus RTU Protocol offers various benefits over other output types but most importantly it allows complete control of the sensor operation and access to all available information including sensor diagnostics, barometric pressure and pressure sensor temperature.
The adaptive software filtering which enables it to provide a fast response coupled with a stable oxygen output. In addition to this, the OXY-LC Oxygen sensor interface electronics offers a high accuracy linear output for all of our zirconium dioxide oxygen sensors.
The built in pressure sensor allows for barometric pressure compensation and the interface mounted screw terminals offers easy wiring with reverse voltage and transient overvoltage.
OXY-LC Oxygen Sensor Interface Board FEATURES
* Provides the electronics necessary to power and control SST range of zirconium dioxide (ZrO2 ) sensors
* Built in pressure sensor for barometric pressure compensation
* Interface mounted screw terminals for easy wiring with reverse voltage and transient overvoltage
OXY-LC Oxygen Sensor Interface Board BENEFITS
* Adaptive software filtering provides a fast sensor response coupled with a stable oxygen output
* High accuracy linear outpu
The Probe Range of zirconium dioxide oxygen sensors are available in three lengths. Suitable for aggressive and polluted applications such as boiler exhausts. Longer probes are an ideal solution for thicker walled, insulated flue pipes.
FEATURES
* Zirconium dioxide (ZrO2) sensing elements
* Long life, non-depleting technology
* Integral heating element
* High accuracy
* Requires an external interface board to operate
BENEFITS
* No reference gas required
* No need for temperature stabilisation
* Compact enclosure
OUTPUT VALUES
Oxygen pressure range 2mbar ~ 3bar max
Accuracy 5mbar max
Internal operational temperature 700'C
Response time (10 - 90% step)
Standard response sensor < 15s
Fast response sensor < 4s
Warm up time (prior to sensor operation) 60s
Warm up time (from standby) 20s
Output stabilisation time ~ 180s
FEATURES
* Zirconium dioxide (ZrO2) sensing elements
* Long life, non-depleting technology
* Integral heating element
* High accuracy
* Requires an external interface board to operate
BENEFITS
* No reference gas required
* No need for temperature stabilisation
* Two lengths available; 220mm and 400mm
TECHNICAL SPECIFICATIONS
Heater voltage
Operating 4V DC ± 0.1V DC (1.7A)
Standby 1.65V DC (0.7A)
Pump impedance at 700'C < 6kohm
Permissible gas temperature
Standard temperature -100'C to +250'C
High temperature -100'C to +400'C
Gas flow rate 0 - 10 m/s
Repetitive permissible acceleration 5g
Incidental permissible acceleration 30g
OUTPUT VALUES
Oxygen pressure range 2mbar - 3bar max
Accuracy 5 mbar max
Internal operational temperature 700'C
Response time (10 - 90% step) < 15s
Warm up time (prior to sensor operation) 100s
Warm up time (from stand by) 20s
Output stabilisation time ~ 180s
FEATURES
* Oxygen pressure range 2 mbar - 3bar
* Zirconium dioxide (ZrO2 ) sensing elements
* Non-consumption technology
* Integral heating element
* No need for temperature stabilisation
* No reference gas required
* High accuracy
* Linear output signal
* Operates with external interface boards
SPECIFICATIONS
Heater Voltage
Porous Cap (15mm) 4.35V DC ± 0.1V DC (1.85A)
Stand by 2V DC (0.85A)
Pump resistance @ 700'C < 6kâ?¦
Permissible gas temperature -100 to 250'C
Gas flow rate 0 to 10 m/s
Repetitive permissible acceleration 5 g
Incidental permissible acceleration 30 g
FEATURES
* Provides the electronics necessary to power and control SST's range of zirconium dioxide (ZrO2 ) sensors
* Externally triggered automatic or manual calibration. Calibration can also be initiated via an on-board push button
* Power and sensor operating LEDs
* Removable polarised screw terminals for easy wiring
BENEFITS
* Adaptive software filtering provides a fast sensor response coupled with a stable oxygen output
* High accuracy linear output
* Can be calibrated in fresh air (20.7% O2 ) o r in any other known O2 concentration
Oxygen sensor o2 gas sensor for portable gas detector
Model number: o2-a2
Performance
Output µa @ 20.9% o2 80 to 120
Response time t90 (s) from 20.9% to 0% o2 < 15
Zero current µa in n2 < 2.5
Linearity % o2 deviation @ 10% o2 0.6
Lifetime
Output drift % change in output @ 3 months < 1
Operating life months until 85% original output of 20.9% o2 > 24
Environmental
Humidity sensitivity % o2 change: 0% to 95% rh @ 40°c < 0.7
Co2 sensitivity % (change o2 reading) / % co2 @ 5% co2 0.1
Pressure sensitivity (% change of output)/(% change of pressure) @ 20kpa < 0.1
Key specifications
Temperature range °c -30 to 55
Pressure range kpa 80 to 120
Humidity range % rh continuous (0 to 99% rh short term) 5 to 95
Storage period months @ 3 to 20°c (store in sealed pot, open circuit) 6
Load resistor o (recommended) 47 to 100
Diameter mm (including label) 20.0
Height mm (including foam ring) 17.4
Weight g < 16
Screw connection oxygen sensor ke-25f3
Model number: ke-25/ke-25f3
Features:
* long life - 2.5~10 years in ambient air
* virtually no influence from co2, co, h2s, nox, h2
* low cost
* operates in normal ambient temperatures
* stable output signal
* no external power supply required for sensor operation
* no warmup time is required
Applications:
* medical - anesthetic instruments, respirators, oxygen-enrichers
* biotechnology - oxygen incubators
* food industry - refrigeration, greenhouses
* safety - air conditioners, oxygen detectors, fire detectors020406080100120020406080100120output
Description
Gs oxygen sensor ke series (ke-12, ke-25, and ke-50) are unique galvanic cell type oxygen sensors developed in japan in 1985. Their most notable features are long life expectency, excellent chemical durability, and no influence by co2. Ke series oxygen sensors are ideal to meet the ever-increasing demand for oxygen monitoring in various fields such as combustion gas monitoring, the biochemical field, medical applications, domestic combustion appliances, etc.
Long life oxygen sensor for medical, oxygen incubators, food industry, oxygen detectors
Model number: ke-25/ke-50
Features:
* long life - 2.5~10 years in ambient air
* virtually no influence from co2, co, h2s, nox, h2
* low cost
* operates in normal ambient temperatures
* stable output signal
* no external power supply required for sensor operation
* no warmup time is required
Applications:
* medical - anesthetic instruments, respirators, oxygen-enrichers
* biotechnology - oxygen incubators
* food industry - refrigeration, greenhouses
* safety - air conditioners, oxygen detectors, fire detectors020406080100120020406080100120output
Description
Gs oxygen sensor ke series (ke-12, ke-25, and ke-50) are unique galvanic cell type oxygen sensors developed in japan in 1985. Their most notable features are long life expectency, excellent chemical durability, and no influence by co2. Ke series oxygen sensors are ideal to meet the ever-increasing demand for oxygen monitoring in various fields such as combustion gas monitoring, the biochemical field, medical applications, domestic combustion appliances, etc.
