membraPure GmbH
membraPure - Model IONUS PCD -Ion Chromatograph
FrommembraPure GmbH
Tailored for enhanced sensitivity and intricate analysis in Ion Chromatography, the system is specifically designed for exceptionally low detection levels. This sophisticated detection technique becomes essential when conductivity-based detection yields minimal peaks, resulting in low sensitivity. Optical detection, however, offers significantly higher sensitivity levels.
Implementing this method can drastically decrease detection limits by several orders of magnitude. For instance, it can reduce the detection limit of substances like bromate to less than 1 part per billion (ppb). The IONUS Post Column Derivatization (PCD) system diverges from built-in conductivity detectors. Instead, it employs a reactor for derivatization followed by a single-wavelength photometerMost popular related searches
UV-VIS detector
ion chromatograph
UV-VIS
ion exchange chromatography
conductivity detector
chromatography
ion chromatography
isocratic pumps
optical detection
pump system
- Different wavelengths are required for these special applications and used colour reactions. These single wavelength photometers are very sensitive compared to a variable UV/VIS detector, and it can be easily changed by the user.
- The choice of wavelength depends on the selected colour reaction, such as for the two bromate determinations according to EPA 317 or 326 with 440 nm or 355 nm.
- This IONUS PCD also offers the advantage that it can be used with IC columns of all manufacturers and is compatible with all common eluents of anion and cation chromatography.
Using post-column derivatization
- Bromate determinations EPA 317/326 with 440/355 nm
- Easy sample preparation
- Detection by post-column derivatization with photometers
- Compatible with the common eluents and columns
- Compatibility with IC columns
Method
Post column derivatization for bromate or transition metals
Analysis with UV/VIS Detector
Conductivity detection
Noise: 0.02 µS, 1 s | linearity: < 1 s | range: 0 – 10 mS/cm
Reproducibility
0.1 % RSD at 100 µL/min
Photometer
Depending on the application the IONUS PCD is equipped with one Photometer. Further equipment can be requested on demand. 440 nm: Bromate according to EPA 317 or organic acids; 355 nm: Bromate according to EPA326, 530 nm: Transition metals.
High pressure side prime and purge valves in eluent and reagent flow.
Manual and automatic peak integration with integrated IQ/OQ procedure for software (only available with software Clarity).
The IONUS can be equipped with an additional UV/VIS detector.
- method: ion exchange chromatography with post column derivatization
- manual injection: 20 µL, further injection loops upon request (50 µL, 100 µL, 200 µL)
- autosampler: 2 racks, each of them with space for 48 vials (1.5 mL) or 12 vials (6 mL), sample cooling, loop 100 µL, 3 injection modes (full-loop, partial loop, microliter-pickup)
- column: stainless steel / PEEK
- temperature stability / range: ~ 0.5 °C / ambient up to 50 °C
- detection:
- post column derivatization (PCD) with a singe wavelength
- photometer in UV-VIS range (440 nm, 355 nm, 530 nm)
- depending on application
- isocratic pump system:
- max. pressure: 400 bar | flow rate: 0.01 - 10.00 mL/min
- reproducibility of flow rate: 0.1 % RSD at 100 µL/min
- maximum operating pressure: 120 bar
- control software & data aquisition: Clarity (21 CFR part 11 compliant) or AminoPeak
- dimensions, weight, power: 1000 x 350 x 375 mm*, 60 kg, 110 - 230 V, 50/60 Hz
*800 mm with opened main unit