Dionex IonPac TCC Series, Руководство по эксплуатации продукта

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IonPac TCC-LP1, TCC-ULP1, and TCC-XLP1
Product Manual Page 16 of 17
Doc. No. 034973-06 ©2005 DIONEX September 2005
5.2. High Background, Noise, or Baseline Instability
Normally, problems such as high background, noise, or baseline instability will not be attributable to the TCC-LP1, TCC-
ULP1, or TCC-XLP1 column. These problems usually originate in either the analytical column or the post-column detection
chemistry. Before checking the TCC-LP1, TCC-ULP1, or TCC-XLP1 as the source of system background noise, consult the
appropriate troubleshooting sections in the analytical column's Product Manual, the Ion Chromatograph Operator’s Manual,
and the detector manual.
If the source of the high background noise is isolated to the TCC-LP1, TCC-ULP1, or TCC-XLP1, then proceed with the
following steps.
A. Be sure that the TCC column is not leaking.
B. Be sure that the eluents are correctly formulated.
C. If you are using an Cation Micro Membrane Suppressor III (CMMS® III), be sure that the regenerant is formulated
correctly.
D. Be sure that the eluents are made from chemicals with the recommended purity (see Section 3, “Operation”).
E. Be sure that the deionized water used to prepare the reagents has a specific resistance of 18.2 megohm-cm.
F. Be sure that the Cation Self-Regenerating Suppressor (CSRS® ULTRA II), the Cation Micro Membrane Suppressor
(CMMS III), or the Cation Atlas® Electrolytic Suppressor (CAES) is suppressing correctly by bypassing the TCC
column and making direct injections.
5.3. Poor Peak Shape
In some instances, poor peak shape in Ion Chromatography may be caused by a contaminated TCC column. To clean the
TCC Column, see, “Column Cleanup of Polyvalent Cations and Acid-Soluble Contaminants” in the Column Care Appendix.
When pursuing pre-concentration with a pump, ensure that the pump has a pulse damper installed. Failure to dampen the
pump pulsations may result in damage to the TCC columns.
Assistance is available for any problem during the shipment or operation of Dionex instrumentation, columns, and
consumables through the Dionex North America Technical Call Center at 1-800-DIONEX-0 (1-800-346-6390) or
through any of the Dionex Offices listed in “Dionex Worldwide Offices” on the Dionex Reference Library CD-ROM.