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USP 38 Column List

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No. Packing material Recommended column
L1

Octadecyl silane chemically bonded to porous or non-porous silica or ceramic micro-particles, 1.5 to 10 µm in diameter, or a monolithic rod

Silica C18M
Silica C18P
L3 Porous silica particles, 1.5 to 10 µm in diameter, or a monolithic silica rod. Silica 5SIL
L7 Octylsilane chemically bonded to totally or superficially porous silica particles, 1.5 to 10 µm in diameter, or a monolithic silica rod. Silica 5C8
L8 An essentially monomolecular layer of aminopropylsilane chemically bonded to totally porous silica gel support, 1.5 to 10 µm in diameter, or a monolithic silica rod. Silica 5NH
L10 Nitrile groups chemically bonded to porous silica particles, 1.5 to 10 µm in diameter, or a monolithic silica rod. Silica 5CN
L11 Phenyl groups chemically bonded to porous silica particles, 1.5 to 10 µm in diameter, or a monolithic silica rod. Silica 5NPE
L17 Strong cation-exchange resin consisting of sulfonated cross-linked styrene-divinylbenzene copolymer in the hydrogen form, 6 to 12 µm in diameter SUGAR SH1011
SUGAR SH1821
RSpak KC-811
IC Y-521
L19 Strong cation-exchange resin consisting of sulfonated cross-linked styrene-divinylbenzene copolymer in the calcium form, about 9 µm in diameter SUGAR SC1011
SUGAR SC1821
SUGAR SC1211
EP SC1011-7F
USPpak MN-431
L20 Dihydroxypropane groups chemically bonded to porous silica or hybrid particles, 1.5 to 10 µm in diameter, or a monolithic silica rod. PROTEIN KW-800 series
KW400 series
L21 A rigid, spherical styrene-divinylbenzene copolymer, 3 to 30 µm in diameter GPC KF-800, K-800, KD-800
KF-600, KF-400HQ, LF,
HFIP-800, HFIP-600, UT-800, HT-800 series, AT-806MS
RSpak DS-613
RSpak DS-413
RSpak RP18-415
L22

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

CXpak P-421S
SUGAR SP0810
SUGAR SC1011
SUGAR SC1821
SUGAR KS-800 series
SUGAR SC1211
SUGAR SZ5532
EP SC1011-7F
USPpak MN-431
RSpak DC-613
SUGAR SH1011
SUGAR SH1821
RSpak KC-811
IC Y-521
L23 An anion-exchange resin made of porous polymethacrylate or polyacrylate gel with quartenary ammonium groups, 7 - 12 µm in size IEC QA-825
L25 Packing having the capacity to separate compounds with a molecular weight range from 100-5000 (as determined by polyethylene oxide), applied to neutral, anionic, and cationic water-soluble polymers. A polymethacrylate resin base, cross-linked with polyhydroxylated ether (surface contained some residual carboxyl functional groups) was found suitable OHpak SB-802 HQ
OHpak SB-802.5 HQ
L26 Butyl silane chemically bonded to totally porous silica particles, 1.5 to 10 µm in diameter Silica 5C4
L33 Packing having the capacity to separate dextrans by molecular size over a range of 4,000 to 500,000 Da. It is spherical, silica-based, and processed to provide pH stability PROTEIN KW-800 series
KW400 series
L34 Strong cation-exchange resin consisting of sulfonated cross-linked styrene-divinylbenzene copolymer in the lead form, 7 to 9 µm in diameter SUGAR SP0810
L37 Packing having the capacity to separate proteins by molecular size over a range of 2,000 to 40,000 Da. It is a polymethacrylate gel OHpak SB-803 HQ
OHpak LB-803
L38 A methacrylate-based size-exclusion packing for water-soluble samples OHpak SB-800 HQ series
OHpak LB-800 series
L39 A hydrophilic polyhydroxymethacrylate gel of totally porous spherical resin OHpak SB-800 HQ series
OHpak LB-800 series
ODP2 HP
RSpak DM-614
L45 Beta cyclodextrin, R,S-hydroxypropyl ether derivative,  bonded to porous silica  particles, 5 to 10 µm in diameter ORpak CDBS-453
L58 Strong cation-exchange resin consisting of sulfonated cross-linked styrene-divinylbenzene copolymer in the sodium form, about 6 to 30 µm  diameter CXpak P-421S
SUGAR KS-800 series
RSpak DC-613
L59 Packing for the size-exclusion separations of proteins (separation by molecular weight) over the range of 5 to 7000 kDa. The packing is spherical 1.5 - 10 µm, silica or hybrid packing with a hydrophilic coating. PROTEIN KW-800 series
KW400 series
L67 Porous vinyl alcohol copolymer with a C18 alkyl group attached to the hydroxyl group of the polymer, 2 to 10 µm in diameter. Asahipak ODP-40
Asahipak ODP-50
ET-RP1
L71 A rigid, spherical polymetacrylate, 4 to 6 µm in diameter RSpak DE-613
RSpak DE-413
RSpak DE-213
L82 Polyamine chemically bonded to cross-linked polyvinyl alcohol polymer, 4 - 5 µm in diameter Asahipak NH2P-50
Asahipak NH2P-40

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