DW-CIC-D160 Ion Chromatography

The DW-CIC-D160 Ion Chromatography is designed for sensitive and flexible analysis of inorganic anions, cations and other ionic compounds. Its built-in eluent generator automatically prepares eluent online from ultrapure water, reducing manual preparation and supporting gradient elution. 

  • 0.1–100 mM Built-in Eluent Generator
  • Cl⁻ ≤0.0003 μg/mL, Li⁺ ≤0.0001 μg/mL
  • 42 MPa · 0.001–9.999 mL/min Pump
  • ≤0.5% Quantitative Repeatability
DW-CIC-D160 Brochure

Features of DW-CIC-D160 Ion Chromatography

  1. Built-in eluent generator—0.1-100 mM, free from configuring eluent, with gradient elution available.
  2. Modular manufacturing process to maintain excellent systemic stability.
  3. Built-in low-pressure degassing technology to eliminate bubble interference for more stability.
  4. Work across a variety of detectors, to expand the scope of applications of ion chromatography.

Applications of DW-CIC-D160 Ion Chromatography

DW CIC D100 27

Environment

Atmospheric composition (dust, particulate matter, fog, acid gas), acid rain, water quality analysis

Appilication of DW-GC 1120 Food Safety

Food

Contaminated ingredients, additives, inherent ingredients, adulteration, production process monitoring

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Agriculture

Pesticide, fertilizer, soil, feed, food, plant analysismaterials in food

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Medicine

Blood, urine, infusion composition, clinical examination, human trace element analysis

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Biology

Protein separation and purification

DW CIC D100

Pharmaceuticals

Analysis of plant medicinal materials, mineral medicinal ingredients, and preparation ingredients

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Materials

Metal materials, semiconductor materials, surface treatment, ultrapure water analysis

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Industry

Raw material analysis, product quality control, electrolytic plating solution analysis, papermaking

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Daily chemicals

Analysis of cosmetics, detergents, cleaning agents, raw materials, and product components

DW-CIC-D160 Ion Chromatography Display

  • DW CIC D160 1
  • DW CIC D160 6

Sample Preparation Guide

1. Clean Water Samples

icon
  • Drinking water
  • Acid rain
  • Filtered atmospheric-smoke solutions

can generally be directly injected according to the manual.

2. Wastewater & Surface Water

范围

Samples containing higher levels of impurities should be pretreated before injection. Pretreatment columns or SPE cartridges can be selected according to the matrix.

3. Sample Filtration

分析快

If a water sample cannot be analyzed on the sampling day, the manual recommends filtration using a 0.22 μm membrane to reduce changes caused by bacterial growth.

FAQ

Its key differentiator is the built-in eluent generator with gradient elution, reducing manual mobile-phase preparation and providing more flexible chromatographic method development.

KOH, NaOH, LiOH and MSA, with a concentration range of 0.1–100 mM.

When using the built-in eluent generator, the manual states that the operator only needs to supply appropriate ultrapure water; the eluent is generated online.

The bipolar conductivity detector can accommodate ions whose concentrations differ by approximately four orders of magnitude, reducing repeated dilution and range switching.

Cleaner water samples may be directly injected, while samples such as wastewater and surface water generally require filtration or other pretreatment depending on matrix complexity.

Yes. The brochure lists non-suppressed chromatography as supported.

The system supports 2, 3, 4 and 5 mm I.D. columns, with up to a 250 mm analytical column plus 50 mm guard column.

The most common issues are contamination of the guard column or analytical column frit, clogging of the in-line filter, or partial blockage of the pump head inlet filter due to particulates in the mobile phase.

Disassemble the individual units (such as the chromatographic column, guard column, and in-line filter) one by one to identify the specific component causing the blockage. For in-line filters, the filter element can be replaced directly; for check valves and filter heads, ultrasonic cleaning with ultrapure water and dilute nitric acid can be used.

First, ensure the eluent is thoroughly degassed. If the issue originates in the detector, flush it by injecting ultrapure water and methanol via a syringe to expel air bubbles. For regular fluctuations caused by the high-pressure pump, inspect and clean the check valves.

Peak tailing usually indicates column contamination or a spent guard column. Peak broadening may result from excessive system dead volume—for instance, due to overly long connecting tubing or mismatched internal diameters.

Recommendation: First, try replacing the guard column. If the problem persists, the column requires cleaning and regeneration. Additionally, inspect the tubing between the injection valve and the detector; PEEK tubing with the smallest possible internal diameter (e.g., 0.25 mm) should be used to minimize dead volume.

Use freshly prepared eluent and install a CO₂ trap on the eluent bottle to prevent CO₂ absorption. Additionally, ensure consistency in the quality of the ultrapure water and reagents used for each preparation.

When a chromatography column is not in use for a short period, it should be flushed according to the manufacturer’s instructions and then sealed and stored in the recommended solvent.For long-term storage, the column ends must be tightly capped to prevent the mobile phase from evaporating and causing the column bed to dry out.

Inverted peaks typically occur due to contamination by ions—identical to those in the sample—present in the eluent or the flow path system. Thoroughly clean the eluent bottle and prepare fresh eluent using higher-purity reagents and ultrapure water.

Specifications of DW-CIC-D160 Ion Chromatography

Built-in EluentEluent TypesKOH/NaOH/LiOH/MSA
GeneratorEluent Concentration Range0.1-100mM
Concentration Increment0.1mM
Flow Rate Range0.1-5.0mL/min
Maximum Pressure30MPa
Minimum Pressure5MPa
Accuracy of Gradient0.15%
  Vacuum degasserVacuum degree-70kPa
Internal Volume300μL
Maximum Flow Rate 10mL/min
degassing efficiency 1.0mL/min 90%
degassing volume 7.5mL
Flow PathPEEK materialChemically inert, metal-free PEEK flow paths, compatible with aqueous eluents of pH 0-14 and reversed-phase solvents
PumpTypeHigh-pressure and low-pulse
two-piston tandem advection pump
Maximum Pressure 42MPa
Flow Range0.001~9.999mL/min
Pressure Pulse≤0.5%
Flow Precision≤0.1%
Flow Accuracy≤0.1%
External Diameterof the Tube1/16″
ValveContact Material of the Rotor PEEK
Control ModeBy Stepper motor
Power Supply24V (DC)
 Column HeaterOperating Temperature RangeAmbient + 5 to 60 ℃
Controlling Temperature Accuracy±0.1℃
Temperature Stability≤0.1℃/h
Columns Supported2, 3, 4 and 5 mm i.d.
Maximum length 250 mm analytical column with 50 mm guard column.
Conductivity DetectorTypeAuto-range conductivity detector
Cell Volume≤0.8μL
Detection Range0～50000μS/cm
Resolution≤0.0020nS/cm
Output Voltage-6000～+6000mv(adjustable)
Electronic Noise0.02nS
Baseline Noise≤0.0005μS/cm
Baseline Drift≤0.005μS
Operating Temperature RangeAmbient +5℃~60℃
Controlling Temperature Accuracy±0.01℃
Temperature Compensation1.7 %/℃
Maximum Pressure10.0MPa
Instrument Linearity≥0.999
Quantitative Repeatability≤0.5%
Qualitative Repeatability≤0.2%
Minimum Detectable ConcentrationCl-≤0.0003ug/mL
Li+≤0.0001ug/mL
SuppressorTypeSelf-Regeneration electrolytic micro-membrane suppressor
MaximumPressure6.0MPa
Non-Suppressed ChromatographyYes/support
 Void Volume<40μL (4mm)
<15μL (2mm)
Power Supply150W
External Size(L*W*H*)350*480*580 (mm)
Net Weight(KG)34
Gross Weight(KG)40
DW CIC D160 packing list
  • DW CIC D100
    9 vials Autosampler
  • DW CIC D100 2
    16 vials Autosampler
  • DW CIC D100 4
    18 vials Autosampler
  • DW CIC D100 1
    Ampere Detector
  • DW CIC D100 3
    Ampere Detector
  • DW CIC D100 5
    UV Detector

Why Choose Us?

One-Station Shopping

“Multiple suppliers” have always been an issue in the procurement process. Drawell as a one-stop laboratory equipment and scientific instruments supplier, can perfectly solve this problem.

Customer-centric Services

User Training – Training by Drawell skilled engineers about installation, debug tests, technical services, etc. It can happen in our factory in China, or at the site in the customers’ country.

Online Support

To discuss the problem and get it resolved, online chats, real-time video calls, and remote guidance. For the after-sales stage, our online technical guidance is free and ready forever.

100% Quality Guarantee

1-year free warranty includes repairing damaged parts and replacing selected ones (shipping extra). 5% is charged to extend it before it expires.

Customer Service of DW-CIC-D160 Ion Chromatograph

DW CIC D160 3

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