a04_Ion_Chromatograph_salient_characteristics.docx

Salient Characteristics/Component for Ion Chromatography System:

· Benchtop dual fluid-channel system capable of analyzing two analyses (cations and anions) simultaneously in natural surface water, ground water and saline water samples with a single autosampler

· Requires anion exchange chemistry with dual-suppressed conductivity detection (chemical suppression followed by CO2 suppression)

· Must include integrated eluent regeneration, suppressor, conductivity detector, and appropriate consumables for complete installation upon purchase.

· The system should be expandable to accommodate gradient elution through the addition of extension modules that contain additional highpressure pumps

· The complete system flow path should be metal-free and pre-installed

· Must include an automatic in-line sample dilution unit, autosampler, and software for method programming and data acquisition.

· Autosampler sample racks should accommodate at least 148 positions

· Requires a sample injection volume as little as 1.5 microliters

· Ability to automatically dilute standard and sample concentrations by at least fifty times.

· Capable of automatic calibration with a multi-ion standard

· High-pressure pump shall contain a flow-range-optimized intelligent pump head which meets the following requirements:

· Variable flow rates ranging from 0.001 to 20 mL/min

· Accurate flow with a maximum deviation of 0.1 % from the set value

· Flow increments of 0.001 mL/min

· Conductivity Detector should be intelligent and contain a Digital Signal Processor with the following specifications:

· Measuring range: 0 to 15,000 S/cm

· Linearity: < 0.1 % (> 16 S/cm); < 1 % (< 16S/cm)

· Resolution: 4.7 S/cm

· Temperature stability: < 0.001° C with a programmable temperature range of 20 to 50°C

· Electronic (Baseline) noise: < 0.1 nS/cm at 1 µS/cm

· Operational Noise: < 0.2 nS/cm with chemical & sequential suppression

· Requires an instrument suppressor module with the following specifications:

· A Tri-chamber micro capillary packed bed suppressor module

· Automatic chemical regeneration, non-consumable

· 10-year warranty of suppressor system

· Provides CO2 removal from the eluent via vacuum degassing

· The system’s column thermostats shall provide for:

· Heating capability up to 80°C

· A column cooling capability to ambient temperature – 20°C

· Temperature stability: < 0.05°C

· Temperature accuracy: ± 0.2°C

· Installation of IC system by factory certified personnel is required along with providing an overview of the system to the purchaser. Documentation of installation and testing of functionality is required.

· Software Operating requirements:

· Compatible with Microsoft Windows 10 Enterprise version 10.0.18363

· Shall provide remote file access and full network compatibility

· Shall be able to track all QC samples, and notify user of failed QC

· Software support for at least 5 years

· Instrument factory warranty of ≥3 years

· Instrument parts & support offer guaranteed availability for 10 years after model reaches commercial retirement from the market.