Thermo Fisher, 302796, Dionex™ Guardcap™ Na Vial Caps

Type: Functionalized Vial Cap with Transfer Line
Unit Size: Each 1
Each Guardcap Na vial cap:
• Removes 1000mg/L divalent cation (e.g., calcium or transition metals) from 800μL of sample.
• Leaves sample pH unchanged.
• Filters better than 80% of particulate matter greater than 20μm in diameter. Ideal for determination of pH-sensitive analytes Some analytes, most notably nitrite, are affected by the pH change caused by hydronium-form resin. Removal of metals from a sample requiring determination of nitrite must be accomplished through sodium-form resin to ensure quantitative recovery (> 99%). Obtain superior analytical results with greatly reduced effort Increase the lifetime of your analytical columns and suppressors by removing metals, matrix ions, and particulates that can foul them. Convenient and easy to use Dionex Guardcap Na vial caps come in the familiar filter cap format used with Dionex PolyVials. Unlike traditional offline sample preparation cartridges, Dionex Guardcap Na vial caps require no time-consuming pretreatment procedures prior to use ̶ simply install these functionalized vial caps on your sample vials and your samples are ready for analysis.