Dionex CES 300 毛细管电解抑制器 | 072052，072053

Dionex CES 300 毛细管电解抑制器

此款 Thermo Scientific Dionex CES 300 毛细管电解抑制器可降低毛细管离子分离的背景基线电导率，且无需再生液解决方案。

Reduce noise for capillary anion and cation separations easily with the Thermo Scientific™ Dionex™ CES™ 300 Capillary Electrolytic Suppressor. Spend your time acquiring data, not making regenerant; this suppressor is continuously regenerated through the electrolysis of water.

Lower Baseline Conductivity

The CES 300 Capillary Electrolytic Suppressor lowers baseline conductivity for anion (Thermo Scientific™ Dionex™ ACES™ 300 Capillary Electrolytic Suppressor) and cation (Thermo Scientific™ Dionex™ CCES™ 300 Capillary Electrolytic Suppressor) detection by converting highly conductive hydroxide or methanesulfonic acid eluents into pure water. It simultaneously boosts sensitivity for conductivity detection by converting analytes into their more conductive hydronium (anion) or hydroxide (cation) forms for a significant increase in signal-to-noise ratio.

Easy to Use Noise Reduction for Capillary Ion Chromatography

• Reduced baseline conductivity

• Enhanced sensitivity for conductivity detection

• Optimized for capillary flow rates (5–30μL/min)

• Time-saving electrolytic regeneration; no need to mix reagents

• Minimal dead volume with high suppression capacity due to three-chamber design

Flexible Operating Modes

• Water-saving “Recycle Mode” recommended for aqueous eluents

• Powerful “External Water Mode” recommended for eluents containing solvent and samples with high solvent or transition metal content
  
  

订货信息：

The CES 300 is compatible with Dionex Capillary IC systems such as the ICS-5000 with IC Cube.

Capillary Electrolytic Suppressor (CES™ 300) for Capillary IC Analysis

The CES 300 Capillary Electrolytic Suppressors are optimized for eluent flow rates typically seen in capillary systems
(5 – 30 μL/min). When used for anion analysis, the ACES^™ 300 converts highly conductive hydroxide-based eluents into pure water, reducing the baseline conductivity. While suppressing the eluent, the ACES 300 also converts the analytes into their more conductive hydronium (acid) form, increasing their sensitivity under conductivity detection. Likewise, when used for cation analysis, the CCES^™ 300 converts highly conductive methanesulfonic acid (MSA) eluents into pure water; simultaneously, the analytes are converted to their more conductive hydroxide form, increasing their sensitivity.

CES 300 Technology

The CES suppressor uses a three-chamber design to minimize dead volume while maximizing suppression capacity and reducing noise.

The eluent chamber is comprised of an ion-exchange capillary membrane that facilitates the efficient exchange of the eluent counter ions for regenerant ions.

The regenerant chambers are divided into ion-exchange and electrode chambers. Regenerant first passes through the ion- exchange chamber, which is filled with a bed of ion exchange resin; the ion exchange capillary membrane is coiled in this bed. The regenerant bed is an ion exchange resin in the opposite form as the eluent. It is this bed of resin that provides the regenerant ions for the capillary membrane eluent chamber.

There are two electrode chambers that are separated from the ion-exchange chamber by a pair of ion exchange membranes. Regenerant, after passing through the ion-exchange chamber, passes through the cathode and anode chambers serially. When current is passed through the electrodes, regenerant ions are generated in the first electrode chamber; these ions are pushed into the ion-exchange chamber via an electric field, maintaining the ion exchange chamber in the regenerant form. After counterions exchange from the eluent ion exchange capillary membrane, they are are removed from the ion exchange chamber via the electric field into the second Electrode chamber. Finally, the counterions are neutralized by the ions generated in the second electrode chamber.

Anion Capillary Electrolytic Suppressor (ACES 300).

CES 300 System Control

The unique design of the CES 300 simplifies software and hardware control options. For most applications, the CES 300 can be set to a single current setting of 10 mA. For applications requiring very high eluent concentrations, the CES 300 should be set to 20 mA. The ICS-5000 includes software and hardware to control the CES 300 suppressor. Chromeleon 6.8 or 7.x is required.

Key Applications Using a CES Suppressor

Separation of 22 anions on an IonPac AS19 Capillary column.

Separation of six common cations using an IonPac® CS12A Capillary column.

¹Requires 15°C for recycled eluent mode of operation.
²Solvents for anion eluents include methanol. Solvents for cation eluents include acetonitrile and dioxane.
³EWM = External Water Mode.
⁴Recycle recommended for aqueous applications without solvent.