Real Time Pcr System,Real Time Pcr System Q320,Real Time Pcr Thermal Cycler Jiangsu Dinai Bioengineering Co.,ltd. , https://www.dinaipcr.com
Recently, LGR has introduced a fourth-generation liquid water isotope analyzer. In order to better serve the users, LGR has answered some technical questions, as follows:
Liquid Water Isotope Analyzer Questions and Answers (Model--LWIA-24d)
1. What can the LWIA-24d do ?
LWIA-24d measures the isotope ratio of liquid water samples, δ18O ( 18 O/ 16 O) and δD (D/H), providing an effective tool for water isotope measurement.
2. What are the advantages of LGR 's LWIA-24d ?
Speed: Connected to the autosampler, the LWIA-24d measures up to 800 injections per day. This is much higher than other products and guarantees data quality.
High-precision mode: LWR's LWIA-24d can perform high-precision measurements to ensure the accuracy measurement needs.
Power consumption: LGR's LWIA-24d and autosampler consume only 150W. Saving electricity is a very important factor in the field.
Technology: LGR is a pioneer in the development of optical cavity ring-down spectroscopy. The founder of LGR first invented the cavity enhancement absorption technology, the cavity ring-down spectroscopy (CRDS).
Reliability: LGR technology is easy to operate. As a result, many LGR devices have rarely failed after many years of use. Our latest patented technology-off-axis laser output spectroscopy technology has many advantages over the traditional first-generation CRDS technology, including insensitivity to laser alignment, short measurement time, low power consumption, and low operating costs.
3. Is the LWIA-24d suitable for field operation ?
Yes, in fact, LGR's LWIA-24d is ideal for field applications because it has the following properties:
• Low power consumption: in the field, reducing power consumption is very important;
• Tolerant to harsh environments: ICOS technology is insensitive to changes in the displacement of the laser, so it is not sensitive to vibration and is suitable for field transportation and installation. • Optional features: We offer several configurations for field applications.
i. Continuous measurement of samplers for direct sampling of lakes, rivers, streams and rainfall.
Ii. Remotely control the analyzer via the network.
• Fieldwork experience: LGR instruments are used throughout the world and have withstood the harsh environment in the wild.
4. Can I see the high resolution absorption spectra recorded in the analyzer ?
Of course, real-time viewing of spectra can help users check the operation of the instrument. For the LWIA-24d, you can view the spectrum in real time or from memory.
The competitors say there is memory effect LGR's LWIA-24d, it is true?
This is totally untrue. We use multiple injections or excessive injections to eliminate the memory effect, which is exactly the same as the mass spectrometer. Usually 6 injections per sample, removing the first two shots and using the last 4 stitches to calculate the true value is enough to eliminate the memory effect.
6. Some manufacturers generate expensive temperature control systems, pressure controllers, wavelength monitoring and vibration testing are necessary for the instrument, is this true?
This is totally incorrect. The truth is: competitors' systems do need these features because the technologies they employ have the above shortcomings, which must be met to meet basic needs, and LGR's improved technology (fast, high precision and accuracy) is not subject to these conditions. The constraints, therefore, do not require such a configuration to meet the requirements of stability and high precision.
7. Other manufacturers claim that the LGR LWIA-24d need to clean the mirror, this is true?
This is completely untrue, and our instruments do not require mirror cleaning.
8. Why is your analyzer significantly better than competitors' products, but the price is not much more expensive?
The price advantage of LGR's analyzers is due to technological improvements and our business strategy. LGR's equipment uses the latest improvements, so even on the basis of higher accuracy than other competitors, there is still not much added cost.
9. Technical literature on LWIA-24d ?
Our website provides a lot of literature, and two articles are recommended at the time:
◆ “High-Frequency Field Deployable Isotope Analyzer for Hydrological Applications,†Manish Gupta, Elena Berman, Chris Gabrielli, Tina Garland, J. McDonnell, Water Resources Research, Water Resources. Research, 45, W10201, doi:10.1029/2009WR008265
◆ “High Resolution Pore Water δ2H and δ18O Measurements by H2O(liquid)-H2O(vapor) Equilibration†LI Wassenaar, MJ. Hendry, VL Chostner, and GP Lis, Environmental Science and Technology, 2008, 42 (24), pp 9262 –9267