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Dionex CRD 200 Product Manual

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CARBONATE REMOVAL DEVICE 200
(CRD 200)

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Summary of Contents for Dionex CRD 200

  • Page 1 CARBONATE REMOVAL DEVICE 200 (CRD 200)

  • Page 2: Product Manual

    Product Manual for CRD 200 Page 1 of 19 PRODUCT MANUAL CARBONATE REMOVAL DEVICE 200 CRD 200 (4 mm) (P/N 062983) CRD 200 (2 mm) (P/N 062986) CRD 200 (0.4 mm) (P/N 072054) ® Dionex Corporation, 2010 Document No. 065068...

  • Page 3: Table Of Contents

    Installing the CRD 200 between the Suppressor and the Detection Cell ........8  3.1.1. Mounting the CRD 200 to the Suppressor ..................8     3.1.2. Plumbing the CRD 200 between the Suppressor and the Detection Cell ........9     3.1.3. External Water Setup........................11  ...

  • Page 4: Section 1 - Introduction

    Regenerated Anion Trap Column (CR-ATC), and a hydroxide eluent compatible column (such as IonSwift MAX-100, IonPac AS11, AS15, AS16, AS17, AS18, AS19, AS20, or AS21). The CRD 200 can also be used with RFIC systems pursuing borate chemistry with AS4A, AS14, or AS14A chemistries. The CRD 200 can also be operated under a vacuum mode of operation and this is recommended for samples such as ammoniated waters.

  • Page 5: Crd 200 Design And Operation

    (Figure 2). In a typical system the CRD 200 is plumbed between the suppressor module and the detector cell. Alternatively the CRD 200 can be installed between the autosampler and injection valve. The regenerant channel that encloses the CRD 200 membrane is flushed with the suppressor waste (base) and aids removal of the CO as carbonate.

  • Page 6: Crd 200 Configuration

    CRD 200 Configuration The CRD 200 is available in capillary (0.4 mm), 2 mm and 4 mm formats for use with 0.25, 0.4, 2, 3, 4, and 5 mm Ion chromatography columns. The 4-mm CRD 200 has a typical delay volume of 200 µL and is recommended for 4 or 5-mm column applications and for installation between the autosampler and injection valve.

  • Page 7: Section 2 - Getting Started

    Page 6 of 19 SECTION 2 – GETTING STARTED The CRD 200 must be handled with care to ensure proper operation. Fittings only need to be finger tightened. Do not attempt to disassemble the CRD 200; it may result in irreversible damage.

  • Page 8: Hydrating The Crd 200 (Capillary)

    3. Plug the new CRD 200 into the CRD receptacle so the regenerant ports at the rear of the cartridge seat firmly. 4. Tighten the thumb screws to ensure a firm fit.

  • Page 9: Section 3 - Installation

    (microbore format) or 3-mm applications, use 0.005” ID x 0.062” (1/16”) OD Red tubing. 1. The CRD 200 is installed on the top of the SRS module. The CRD 200 is shipped with self-adhesive Velcro tape that is used to attach the device to the SRS module.

  • Page 10: Plumbing The Crd 200 Between The Suppressor And The Detection Cell

    REGEN IN port of the CRD 200 (orange label). g) Divert the REGEN OUT port of the CRD 200 (blue label) to the waste or use it as a regenerant stream for other modules such as continuously regenerated –trap column (CR-TC) and the Eluent generator (EG) degas assembly.
  • Page 11 1 - Eluent in C ell 2 - Eluent out 3 - R egen in 4 - R egen out FIGURE 7 CRD 200 Plumbing Schematic FIGURE 8 CRD 200 Installed in the System Document No. 065068-05 © 2010 Dionex Corporation May 2010...

  • Page 12: External Water Setup

    (P/N 056882) to the cell out port on the cell. The line coming from the bottom of the DCR bottle should be connected to the REGEN IN port on the CRD 200. The DCR bottle should be completely filled to the top with 200mM base. In the above setup the cell effluent displaces the DCR bottle hence the contents of the DCR bottle should be replenished when the eluent container is replenished.

  • Page 13: Installing And Plumbing The Crd 200 (4 Mm) Between An As-Dv Or As40 Autosampler And Injection Valve

    (orange) (0.51 mm or 0.020 in. i.d.) tubing. Install the free end into the “Eluent In” port of the CRD 200. 3. Cut another ~20 cm (8 in.) piece of orange PEEK and install one end in the “Eluent Out” port of the CRD 200 and the other end into Port 5 of the injection valve.

  • Page 14: External Water Setup

    External Water setup When using the external water mode of operation for the suppressor, the CRD 200 (Capillary) is plumbed similar to what was previously described. However in step 7 the fluid from the conductivity cell outlet is diverted to waste and the suppressor REGEN I N line is plumbed to an external water source.

  • Page 15: Section 4 - Applications

    Recommended Applications The CRD 200 is recommended for both routine and trace level work with hydroxide and borate eluents when the presence of /carbonate from the sample interferes with the anion analytes. By simply being exposed to carbon dioxide in the air, samples can become contaminated with carbonate.

  • Page 16: Section 5 - Operation

    Analysis using borate eluents is typically pursued in the nuclear power industry for analyzing borated waters. In the example below, the CRD 200 is useful in reducing the carbonate peak and improving the quantitation of chloride. CRD Application with AS4A Borate Chemistry CRD Application with AS4A Borate Chemistry ®...
  • Page 17 Product Manual for CRD 200 Page 16 of 19 A typical anion application at ppb level shown below demonstrates the utility of the CRD 200 to remove CO and aid in the improved quantitation of sulfate. CRD Application with AS19 Gradient Chemistry Conditions: 1.80...

  • Page 18: Section 6 - Troubleshooting

    The CRD 200 may have an internal leak due to damage. Replace the CRD 200 if a leak is detected. Ensure the suppressor is fully regenerated by pursuing a sulfuric acid treatment.

  • Page 19: Negative Peak Or Dip At The Carbonate Peak Location

    Do not over tighten as damage may occur. b) Disconnect the lines from the regen ports of the CRD 200 and, with the eluent flowing in the eluent channel of the CRD 200, observe for fluid flow out of the regen channel. A continuous flow of liquid from the regen ports of the CRD 200 indicates an internal leak.

  • Page 20: Appendix Aquality Assurance Report (Qar)

    Product Manual for CRD 200 Page 19 of 19 APPENDIX A QUALITY ASSURANCE REPORT (QAR) Document No. 065068-05 © 2010 Dionex Corporation May 2010...

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