Complete Instruments
Eft spectrometers are PC based instruments provided as a turn-key solution. Included with each system is the spectrometer, computer, 19″ flat panel monitor, printer, and table. Also our systems always include installation, training and a generous warranty. The Eft is an excellent option for locations that cannot support a superconducting magnet. Our FT-NMR spectrometers are capable of most modern experiments. Examples of common techniques include 1d and 2d-nmr (COSY, HETCOR) and DEPT for multiplicity determination.
Our spectrometers have the same advanced features as research grade spectrometers such as direct digital synthesis (DDS) frequency generation, computer controlled gradients, and digital filtering for the highest quality data. In fact, chances are that if you have used research NMR in the past, you’re well-suited to using an Eft.
The product pyramid summarizes how you can configure an Eft. The base configuration is for 1H observation but includes all the capabilities for 1D, 2D, and T1, T2, and kinetics.
Option 1 adds a second channel, nominally for 13C observation. For special applications, the second channel could be 31P or another nucleus.
Option 2 introduces multinuclear tuning to both channels. On the 1H channel, the frequency can be tuned by the user to observe 19F. On the low frequency channel, the range of tuning covers 11-25MHz for a 60MHz instrument and 17-37MHz for a 90MHz instrument. A table of nuclei can be downloaded here.
The capability to add 19F is available in the base configuration (1H) and with option 1 (1H/13C) for customers who don’t want to purchase the multinuclear option.
Magnets - Aii magnets introduce a number of improvements over refurbished EM magnets including improved thermal stability and built-in anti-vibration. These improvements allow the Aii instruments to be used in more places because they are less sensitive to temperature swings and environments with vibrations.
Shims - Aii magnets are also equipped with our new 30 element shim system, which coupled with our new generation of electronics will allow us to extend the range of experiments currently implemented.
60 vs. 90MHz - Although we offer both 60 and 90MHz instruments, we’d like to offer comparisons to help customers decide which system is right for them. The two advantages of the 90MHz system include:
- Twice the sensitivity of a 60MHz system
- 50% better resolution.
For a 2-year school a 60MHz system will address 99% of the applications. If the program has a research component, then a 90MHz instrument might be more suitable. We have put together comparison spectra to help you decide. A disadvantage of the 90MHz magnet is that it weights 2000lbs, which could be a problem if installed on upper floors.