6048
Examples of agarose-based matrix for gel filtration chromatography are Sepharose and WorkBeads 40 SEC ( cross-linked beaded agarose ) , " Praesto " and Superose ( highly cross-linked beaded agaroses ) , and Superdex ( dextran covalently linked to agarose ) .
 Superdex
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Superdex