全套微量测定一氧化氮NO和pH,ion,Dissolved Oxygen ,redox,flow-through electrodes
MicromeasurementMicromeasurement for pH, ion, DO, redox & flow-through
It has been introducing the world to revolutionary laboratory equipment since 1976. Since their introduction of the micro pH electrode which measures 1/5 of a liquid drop, Lazar Research has become a leader in the field of micro measurements.
Complete SystemsMeasure + Log + Plot all in one
Complete systems for pH, ion, redox, flow-through electrodes & 一氧化氮NO
Our ArrowLabb(TM) Measurement & Plotting Systems are fully complete. Each system contains advanced digital meter, high quality electrode and our exclusive plotting software which logs and graphs directly on your PC. Save time and money by purchasing ArrowLabb All-in-One systems.
Complete systems index
Unique specialties
Nitric Oxide Measurement System - Superior alternative to GriessElectrodes for NMR tubes - NMR electrodes for pH, redox, and ionsLow cost DO measurement using your pH meterMicro flow through electrodes for pH, redox, ions, dissolved oxygen, and conductivity全套微量测定一氧化氮NO和pH,ion,redox,flow-through electrodes
Nitric Oxide 一氧化氮Measurement System测量系统
Nitric oxide (NO) plays a major role in a variety of mammalian biological processes including blood pressure homeostatisis, immune regulation, transmission of signals by the nervous system, and platelet aggregation. The production of nitric oxide is difficult to measure directly due to its very short physiological half life (1 to 40 seconds) and the extremely small quantities (picomolar) which are produced.
In order to get around the problem of direct measurement of NO, analytical techniques have been developed which determine the stable end products of NO oxidation, namely NO3-and NO2- ions. NO2- is commonly measured using a Griess colorimetric assay. This technique usually requires the reduction of NO3- to NO2- using either chemical or enzymatic methods.
Because the Griess method involves several chemical conversion steps it often gives inaccurate results due to incomplete yields and environmental factors such as temperature and age of the Griess reagents. Other drawbacks with the Griess methods include tedious and time consuming steps, especially in the reduction of NO3 to NO2, and high cost per sample.
The revolutionary Lazar ArrowStraight(TM) NO Measurement System directly measures both NO2 and NO3 ions without any intermediate chemical reactions. This method significantly increases accuracy while saving time and cost. This system is simple to use and comes complete with an analyzer program that records results on your PC.
Advanced Micro Oxidation-Reduction Measurement System
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Ideal system for:
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The ArrowDOXTM Oxidation-Reduction Potential System is the ideal system for these applications for the following reasons:
- MEASURE OXIDATION-REDUCTION POTENTIAL IN 1/10 OF A DROP. This electrode enables you to measure samples as small as 5 micro liters (1/10 of a drop)
- EXTREMELY SMALL SENSOR SIZE. Tip diameter of the ArrowDOXTM electrode is only 1mm.
- LOW IMMERSION DEPTH. Immersion depth for the ArrowDOXTM micro combination redox electrode is 0.5 mm.
- GUARANTEED UNBREAKABLE. Electrode features solid state sensor and fluoropolymer capillary tube making it virtually unbreakable. Electrode is guaranteed against breakage for the life of the probe. Why settle for glass?
- MORE STABLE THAN GLASS ELECTRODES. The solid state design of the probe offers a much lower output resistance than glass probes of the same size giving a much more stable redox reading.
- MEASURE MIDPONT POTENTIAL OF CYTOCHROMES by simultaneously measuring the oxidation-reduction potential while at the same time measuring the spectrophotometric absorption during a reductive potentiometric titration of cytochrome
- PLOT REDOX POTENTIAL CONTINUOUSLY ON YOUR PC. Monitor the change in oxidation-reduction potential with time directly on your PC and see a real time curve as the potential changes. Ideal for measuring the midpoint potential of cytochromes.
- TABULATE OXIDATION-REDUCTION POTENTIAL VALUES ON YOUR PC. Dip the micro redox electrode into a 96 well plate and record oxidation-reduction potential value on your PC while at the same time keying in the sample ID. Go to next well and repeat procedure. Get complete redox potential record of as many as thousands of individual samples.
APPLICATION AREAS
- Biotechnology
- Biological sciences, medicine & physiology
- Pharmaceuticals
- Radioactive samples
- Isoelectric focusing gels
- LC & HPLC
- NMR samples
- Environmental studies
Now available: ArrowDox(TM) System for NMR tubes
Special version of ArrowDox(TM) is also available with an extra long stem especially for measuring and plotting redox in NMR tubes. Enjoy the same accuracy and features as our regular ArrowDox(TM) System especially designed for NMR tubes.
Sample ArrowDOXTM Microsoft WindowsTM Screenshots:
ORDERING INFORMATION
ArrowDoxTM Micro oxidation-reduction Measurement System including Model ORP-146S micro combination redox electrode with built in reference, Model 6230 pH/millivolt electrometer with RS-232 port to PC or laptop, PC cable, complete WindowsTM compatible software program for recording, tabulating, and graphing redox potentials on your PC or laptop.
Dissolved Oxygen Probes
- NEW pO2 & pCO2 Micro Electrodes
- NEW pO2 Needle Probe
- Complete DO measurement & data logging systems
- Dissolved Oxygen Probe - Measure DO or BOD with your pH meter
- Micro Flow Through CO2 & pCO2 Electrodes
pO2 & pCO2 Micro Electrodes
The new pO2 probe can be used to measure pO2 of tissues, whole cells, cell fractions, and various types of respiration studies. It can also be used to measure dissolved oxygen in biological and environmental samples. The pCO2 probe can be used to measure pCO2 in blood, fermentation studies, and various tissues. The pO2 probe has a 2mm tip and a 6mm body diameter. The pC02 probe has a 9mm body diameter.
pO2 Needle Probe
The new pO2 needle probe that can be used directly with a strip chart recorder or pH meter to measure pO2 of various plant and animal tissue, cell cultures, and respiration studies. Unit comes complete with electronic signal conditioner for direct hookup to your recorder or pH meter.
Complete Dissolved Oxygen measurement and data logging systems
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Our dissolved oxygen probes including micro probe, needle probe and micro flow through probes are now available as complete systems which include DO probe, amplifier, dissolved oxygen monitor, and software which logs and plots directly to your PC.
ArrowLabb(TM) Systems are complete all-in-one measurement systems. Instead of spending time purchasing equipment separately, ArrowLabb(TM) Systems combines your entire measurement solution into a single box. The most unique feature about ArrowLabb(TM) Systems is that you these complete systems not only measure, but they also graph and tabulate data directly on your PC in an easy to use format using a unique software program. After the success of our ArrowDox(TM) Micro Redox Measurement System and ArrowStraight(TM) Nitric Oxide measurement system, we have developed a large selection of all-in-one measurement systems which measure, tabulate and graph in one complete out-of-the-box solution. We now have systems for pH, redox, ions, nitric oxide and flow thru electrodes. Types of complete systems we carry:
Each system performs the following tasks:
Advantages of purchasing our ArrowLabb(TM) complete systems:
Each ArrowLabb(TM) System includes:
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Dissolved Oxygen Probe
Measure dissolved oxygen using your pH meter
Features
- Use with any pH Meter. Probe can be plugged directly into any standard pH meter for dissolved oxygen measurements.
- Covers Full DO Range. Electrode can measure dissolved oxygen from 0 to 20 ppm or 0 to 150% saturation.
- Eliminates Winkler Method. Probe measures dissolved oxygen directly without involved wet chemistry of titrations needed with the Winkler method.
- BOD Measurements. BOD probe fits directly into BOD bottle for 5 day or continuous BOD measurements.
- Portable. On-the-spot field measurements of dissolved oxygen can be made without a trip back to the laboratory.
- Rapid Response. Typical response time at room temperature is 12 seconds.
- Use for both BOD measurements in the LAB and for Field use.
Specifications
| Oxygen Range: 0 to 20 ppm dissolved oxygen |
| Accuracy: +/- 0.2 ppm at calibration temperature |
| Temperature Range: 0 to 50 degrees C |
| RESPONSE TIME: Response time at 25 C is 12 seconds for 90% of reading. |
| Connector: Available in either U.S. standard or BNC connector (please specify when ordering). |
| Power: 9 volt disposable battery. |
| Sample Size: Minimum sample size is about 2 ml. |
Micro Flow Through CO2 & pCO2 Electrodes
Features
- Use in Bioreactor, Cell Culture, and Organ Perfusion. pO2 System low volume (80 microliter) is ideally suited for in line monitoring of bioreactors, organ perfusion, and cell culture. pC02 volume is 100ul.
- Adapts to silastic tubing
- End fittings on pO2 & pCO2 probes attach directly to standard silastic tubing.
- Use with your pH meter
- pO2 & pCO2 probes plug directly into your pH meter.
- Continuous pO2 & CO2 monitoring using strip chart recorder.