CDD-10AVP Conductivity Detector features

  • Low noise, low drift and wide dynamic range assure proven performance of the Shimadzu VP series HPLC.
  • Data acquired by the CDD-10AVP is transferred to the SCL system controller via an optical fiber interface and are digitally processed by workstation.
  • By adding the optional cell (dual kit NS), a low-cost and compact non-suppressor type dual ion chromatograph, which detects anions and cations simultaneously, can be made.

Application Areas: (Analysis of Anions and Cations in Liquid Samples)

Kuwait University

Ion Chromatography (HPLC)

Figure: Shimadzu High-Performance Liquid Chromatograph for Ion Analysis

Ion chromatography (IC) is an analytical technique for the separation and determination of ionic solutes in water in general especially environmental in industrial processes, metal industry and industrial waste water in biological systems in pharmaceutical samples in food etc.  IC can be classified as a liquid chromatographic method, in which a liquid permeates through a porous solid stationary phase and elutes the solutes into a flow-through detector.  The stationary phase is usually in the form of small-diameter (5-10 mm) uniform particles, packed into a cylindrical column.  The column is constructed from a rigid material (such as stainless steel or plastic) and is generally 5-30 cm long and the internal diameter is in the range of 4-9 mm.  A high pressure pump is required to force the mobile phase through the column at typical flow rates of 1-2 ml/min.  The sample to be separated is introduced into the mobile phase by injection device, manual or automatic, prior to the column.  The detector usually contains low volume cell through which the mobile phase passes carrying the sample components.

  • On-line degasser DGU-20A: By adopting a high-performance online degassing system with an internal capacity of 400 μL, offline degassing of the mobile phase using ultrasonic waves or decompression is not required. Piping is straight forward, thanks to the special reservoir tray.
  • System controller CBM-20A: This high-function interface features built-in server functionality that communicates with LabSolutions, which has Prominence system control and data buffering functionality.
  • Solvent delivery pump LC-20ADSP: With the pulse-free solvent delivery pump, which is capable of solvent delivery at 100 nL/min to 10 mL/min, conductivity detection, which does not require suppressors, can be performed.
  • Autosampler SIL-20A: The SIL-10Ai is a standard ion chromatograph autosampler, compatible with both variable injection volume systems based on syringe measurements, and with loop measurement systems. The lineup also includes the SIL-20A, a total-volume injection system based on plunger pump measurement, which is capable of high-speed injection and high accuracy from 0.1 μL.
  • Conductivity detector CDD-10A SP/VP: Two-channel simultaneous detection is possible with the addition of the optional dual kit NS. It can accommodate a dual flow-line analysis system, equipped with anion suppressor/cation non-suppressor systems. Using the VP functionality, in addition to pass/fail determinations based on conductivity measurements, the system is capable of automatic calibrations, including zero conductivity correction and span adjustments.
  • Absorbance detector SPD-20A: Thermal control functionality is provided as standard in the removable detector cell assembly, reducing the impact of ambient temperature changes.
  • Column oven CTO-20AC SP: The column oven features forced air-circulation, which has an established reputation for HPLC column temperature control. Furthermore, thanks to the electronic cooling function, column temperature can be controlled from an ambient temperature of −15 °C. In addition to columns, this large-capacity oven can simultaneously accommodate a suppressor/non-suppressor conductivity detector cell assembly.