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USP "L" Column Listing

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See Hamilton's Qualifying USP "L" Columns Below

 

"L"

 

Packing Description

 

Qualifying Packing Material

 

L1 Octadecyl silane chemically bonded to porous silica or ceramic micro-particles, 1.5 to 10 µm in diameter, or a monolithic silica rod HxSil C18
L7 Octylsilane chemically bonded to totally porous silica particles, 1.5 to 10 µm in diameter, or a monolithic silica rod
HxSil C8
L17  Strong cation-exchange resin consisting of sulfonated cross-linked styrene-divinylbenzene copolymer in the hydrogen form, 7 to 11 µm in diameter  HC-75 (H+) 
L19 Strong cation-exchange resin consisting of sulfonated cross-linked styrene-divinylbenzene copolymer in the calcium form, about 9 µm in diameter

HC-75 (Ca2+)

HC-40 (Ca2+)

L21 A rigid, spherical styrene-divinylbenzene copolymer, 3 to 10 µm in diameter

PRP-1 (100 Å)

PRP-3 (300 Å)

L22
A cation-exchange resin made of porous polystyrene gel with sulfonic acid groups, about 10 µm in size

PRP-X200

PRP-X300

L23
An anion-exchange resin made of porous polymethacrylate or polyacrylate gel with quaternary ammonium groups, about 10 µm in size PRP-X500
L34 Strong cation-exchange resin consisting of sulfonated cross-linked styrene-divinylbenzene copolymer in the lead form, about 9 µm in diameter HC-75 (Pb2+)
L47
High capacity anion-exchange microporous substrate, fully functionalized with trimethylamine groups, 8 µm in diameter

PRP-X110

RCX-10

RCX-30