|Column Type||Trap Column|
|Description||BorateTrap; 4 x 50 mm|
|For Use With (Application)||Removal of Borate from Eluents Prior to Sample Injection|
|For Use With (Equipment)||HPAE-PAD|
|Max. Pressure||4000 psi (275 bar)|
|Solvent Compatibility||pH 0 to 14, Up to 90% of Common HPLC Solvents|
|Particle Size||20 µm|
|Stationary Phase||High Capacity Resin with Very High Selectivity for Borate|
|Length (Metric)||50 mm|
|Diameter (Metric)||4 mm|
|Unit Size||Each 1|
|Catalog Number||Specifications||Unit Size||Length (Metric)||Price (USD)||Availability||Quantity|
|047078||Each 1||50 mm|
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Borate is a known contaminant in laboratory water supplies. In chromatography, borate contamination of chromatography eluents may be a result of degrading deionized water systems or as leachate from borosilicate glassware. Borate contamination in eluents can cause a significant loss of peak efficiency, especially for mannose, fructose, and reduced monosaccharides. If borate is present in the eluent, it binds both to the anion-exchange column and to the carbohydrate analytes. The carbohydrate-borate complex is less efficiently eluted from the anion-exchanger than is the carbohydrate, resulting in peak tailing, particularly where vicinal cis hydroxyl groups are present, such as for mannose and sugar alcohols.