DW-CIC-D300 Ion Chromatography

The DW-CIC-D300 Ion Chromatography features independent anion and cation channels, allowing both channels to operate simultaneously without interfering with each other. This dual-channel design helps laboratories analyze anions and cations within the same workflow and improve overall testing efficiency.

Simultaneous Anion & Cation Analysis
0.1–100 mM Built-in Eluent Generator
42 MPa · ≤0.1% Flow Accuracy & Precision
Cl⁻ ≤0.0004 μg/mL / Li⁺ ≤0.0001 μg/mL

Description
Specification
Accessories
Why Drawell?

Features of DW-CIC-D300 Ion Chromatography

Dual-channel system: Cations and anions can be detected simultaneously.
Eluent thermal buffer system: Eluent enters into the columns after preheated, to avoid bubbles generated from rapid heating.
Built-in low-pressure degassing technology: Eliminate bubble interference for more stability.
World’s leading full-range series: Chromatograph columns are able to detect of ions with varied compositions.
Excellent performance: Support all your applications.

Applications of DW-CIC-D300 Ion Chromatography

Environment

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

Food

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

Agriculture

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

Medicine

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

Biology

Protein separation and purification

Pharmaceuticals

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

Materials

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

Industry

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

Daily chemicals

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

DW-CIC-D300 Ion Chromatography Display

FAQ

Its key advantage is the independent anion and cation dual-channel system, allowing simultaneous detection of both ion groups.

Yes. It supports KOH, NaOH, LiOH and MSA with a 0.1–100 mM concentration range.

Yes. The built-in eluent system has a specified gradient accuracy of 0.15%.

Yes. The built-in vacuum degasser has a vacuum degree of -70 kPa and a specified degassing efficiency of 90% at 1.0 mL/min.

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

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.

Use a guard column: Installing a guard column before the analytical column and replacing it regularly is the most effective method.

Rigorous sample pretreatment: All samples must be filtered through a 0.45 μm membrane or processed using online ultrafiltration/dialysis techniques prior to injection to remove particulates and impurities.

Proper usage: Avoid using eluents that fall outside the column’s pH range (typically 2–11) and ensure the use of high-purity reagents.

Specifications of DW-CIC-D300 Ion Chromatography

Built-in Eluent Generator	Eluent Types	KOH/NaOH/LiOH/MSA
	Eluent Concentration Range	0.1-100mM
	Concentration Increment	0.1mM
	Flow Rate Range	0.1-5.0mL/min
	Maximum Pressure	30MPa
	Minimum Pressure	5MPa
	Accuracy of Gradient	0.15%
Vacuum degasser	Vacuum degree	-70kPa
	Internal Volume	300μL
	Maximum FlowRate	10mL/min
	Degassing Efficiency	1.0mL/min 90%
	Degassing Volume	7.5mL
Sensor	Leakage sensor	Standard configuration
Gas-liquid separator	One	Standard configuration
Flow Path	PEEK material	Chemically inert, metal-free PEEK flow paths, compatible with aqueous eluents of pH 0-14 and reversed-phase solvents
Pump	Type	High-pressure and low-pulse two-piston tandem advection pump
	Maximum Pressure	42MPa
	Flow Rate Range	0.001~9.999mL/min
	Pressure Ripple	≤0.5%
	Flow Precision	≤0.1%
	Flow Accuracy	≤0.1%
	External Diameter ofthe Tube	1/16″
Column Heater	Operating Temperature Range	Ambient + 5 to 60 ℃
	Controlling Temperature Accuracy	±0.1℃
	Temperature Stability	≤0.1℃/h
	Columns Supported	2, 3, 4 and 5 mm ID. Maximum length 250 mm analytical column with 50 mm guard column
Conductivity Detector	Type	Auto-range conductivity detector
	Cell Volume	≤0.8 μL
	Detection Range	0～50000μS/cm
	Resolution	≤0.0020nS/cm
	Output Voltage	-6000～+6000mv(adjustable)
	Electronic Noise	0.02nS
	Baseline Noise	≤0.0005μS/cm
	Baseline Drift	≤0.005μS
	Operating Temperature Range	Ambient +5℃~60℃
	Controlling Temperature Accuracy	±0.01℃
	Temperature Compensation	1.7 %/℃
	Maximum Pressure	10.0MPa
	Linear Range	≥103
	Instrument Linearity	≥0.999
	Quantitative Repeatability	≤0.5%
	Qualitative Repeatability	≤0.2%
	Minimum Detectable Concentration	Cl-≤0.0004ug/mL Li+≤0.0001ug/mL
Suppressor	Type	Self-Regeneration electrolyticmicro-membrane suppressor
	Maximum Pressure	6.0MPa
	Non-Suppressed Chromatography	Yes/support
	Void Volume	<40μL (4mm) <15μL (2mm)
Power Supply		350W
External Size(LWH*)		500500760 (mm)
Net Weight(KG)		48
Gross Weight(KG)		73

59*59*70cm, 57kg
56*49*35cm, 10kg

Accessories of DW-CIC-D300 Ion Chromatography

9 vials Autosampler
16 vials Autosampler
18 vials Autosampler
Ampere Detector
Ampere Detector
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. In addition to manufacturing our own equipment, we also represent other laboratory equipment. Our product lines are rich and diverse at competitive prices. Provide one-stop service to customers.

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. Cost depends on where and when the training happens.

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 Policy

1 year free official warranty, including repairing quality-damaged parts, and offering replacements of selected parts (shipping cost is extra). 5% of the product price is charged for extending the warranty before the end of the official warranty.