MFDS (Multi Frequency Drive System)
We have developed a new Multi Frequency Drive System. Expanding on the design concept of the ECZ system, the ECZ Luminous system enables multiple resonance measurements using triple-resonance probes such as HCN and HCX probes on a standard two-channel spectrometer. This allows to run complex multi-nuclei experiments on a fairly simple and inexpensive NMR system.
5 mm HCN probe configuration with ECZ Luminous System
HCP triple resonance experiment performed by 2 channel spectrometer
(¹³C-³¹P {¹H} correlation)
HCN triple resonance experiment performed by 2 channel spectrometer
(CBCACONH)
STS (Smart Transceiver System)
The ECZ Luminous inherits the STS (Smart Transceiver System) digital high integration and high frequency technology used in the previous ECZ series. The sequencer, DDS (Direct Digital Synthesizer), FSU (Frequency Synthesizer Unit), transmitter, receiver, acquisition unit, and gate control unit are all integrated on a single RF (Radio Frequency) transmitter/receiver board. Two 4-frequency source units (one each for HF and LF) and one receiver are configured on a single RF transmitter/receiver board. The standard configuration has a total of eight frequency sources and one receiver. The ECZ Luminous can be expanded to four RF transmitter/receiver boards to support up to 8 nuclei, 32-frequency sources and four receivers. In addition, the transmitter/receiver system in the STS is a hybrid of direct conversion oversampling and superheterodyne undersampling technologies, which allows for flexible frequency conversion and efficient and optimal signal transmission/reception depending on the target frequency.
Highly Precise Digital Control
The ECZ Luminous sequencer provides fast control of frequency, phase and amplitude modulation with a minimum control time resolution of 5 ns. In addition, the ECZ Luminous is equipped with a digital quadrature detection (DQD) circuit that enables dynamic frequency and phase modulation synchronously or asynchronously in both the transmitter and receiver systems. This enables signal processing with high functionality and a high degree of freedom, and is expected to be applied to cutting-edge solid- state NMR measurements, which have become increasingly important in recent years. In addition, a unique streaming transfer technology is used for the sequence memory, which has a quasi-infinite memory capacity. At the same time, the same control performance is provided for various gating and synchronization operations with external systems. These high-speed, high-accuracy digital control technologies provide the best solution for a wide variety of requirements to realize a wide range of advanced NMR measurements.
PM-BEBOP180 Phase modulated pulse
1H decoupled 19F-13C HMQC 2D spectrum
Wide Dynamic Range
The high dynamic range of ECZ Luminous allows you to clearly capture small NMR signals in NMR spectra in the presence of strong NMR signals (i.e. residual solvent signal).
A small
13C satellite signal (about 4.6 millionths) of the acetone signal in a mixed sample: H2O:DMSO:Acetone=25131:125:1 (about 10% D2O) is clearly visible.
Low-noise Preamplifiers
Newly developed low-noise preamplifiers improve sensitivity. In combination with ROYALPROBE™ / ROYALPROBE™ HFX, the sensitivity can be potentially improved by about 10%.
Digital Lock Circuit for Stability
The ECZ Luminous uses STS technology to digitally control the 2H lock with high speed and high accuracy. The excellent response control of the digital feedback circuit suppresses the effects of magnetic field fluctuations more efficiently. The high speed and high precision digital lock feedback function enables stable and long time measurement.
Stability test data over 12 hours
1D1H-13C HMQC needs to observe the correlated signal (left and right signals) of
13C-coupled1H, which has an existence ratio of about 1%, and eliminate the directly observed signal of
12C-coupled1H, which has an existence ratio of about 99%. This is why it is used to check stability.
Easy Shimming
ECZ Luminous features improved shim sets. The speed of automated 1D and 3D gradient shimming routines has been substantially increased compared to ECZ systems. This improves high throughput NMR measurements.
Gradient shimming (2H)
Spectra before and after resolution adjustment by gradient shim. The resolution is improved by 20 seconds.
Gradient shimming (19F)
You can select the 19F signal and use it to adjust the resolution with gradient shimming as well as the 2H signal.
Poorly adjusted radial shims under sample rotation (top) and corrected with 3D gradient shimming (bottom)