Agilent Guard Columns

Question

Dear team and forum, 
 Hi, may I ask a question about compatible guard columns for preparative or semi prep columns in our lab please? We are thinking about buying guard columns for the following two columns 
 
 Eclipse XDB-C8, 5um, 9.4*250mm 
 Eclipse XDB-C18, 7 um, 21.2*250mm 
 
 Are there any suggested guard column (with the right connection size) for of these two Agilent columns respectively? 
 Many thanks!

Guido Mes · Accepted Answer

Hello Yuhang, 
 Looking at page 11 of the InfinityLab preparative LC brochure ( Agilent InfinityLab Preparative LC Columns ) it is maybe not directly clear which guard to choose for each of these two columns, though the following guards are the ones the customer can use: 
 1. Eclipse XDB-C8, 5um, 9.4*250mm (= PN 990967-206) 
 Guard: PN 820212-926 (ZORBAX Eclipse XDB-C8, 15.8 x 10 mm, guard cartridge (PrepHT), 5 &micro;m, 2/pk (use with end-fitting 820444-901, or standalone hardware kit 420420-901)) 
 
 2. Eclipse XDB-C18, 7 um, 21.2*250mm (= PN 977250-102) 
 Guard: PN 820212-925 ( ZORBAX Eclipse XDB 80&Aring; C18, 15.8 x 10 mm guard cartridge (PrepHT), 5 &micro;m, 2/pk (use with end-fitting 820444-901, or standalone hardware kit 420420-901 )) 
 
 I hope this answers your question. 
 
 Best regards, 
 Guido

Agilent Guard Columns

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