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Handbook of Size Exclusion Chromatography and Related ...

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Table 8 SEC Conditions for Characterization <strong>of</strong> Nonionic Cellulose Ethers<br />

Sample<br />

Packing<br />

material<br />

<strong>and</strong> pore size<br />

designation<br />

Mobile<br />

phase<br />

Detector(s)<br />

<strong>and</strong><br />

wavelength<br />

(nm)<br />

Flow<br />

rate<br />

(mL/min) Reference<br />

MC, HEC, Diol modified MeOH:10 mM LALLS/DRI — 162<br />

HPC, EHEC,<br />

HPMC<br />

LiChrospher<br />

4000, 1000,<br />

300<br />

HEC TSK PW<br />

G5000,<br />

G4000<br />

HPMC Methacrylate, a<br />

Hydroxylatedpoly-<br />

etherbased b<br />

HPMC TSK PW<br />

G6000,<br />

G5000,<br />

G4000<br />

MC d<br />

TSK PW<br />

G1000<br />

Benzylated PL gel f 10000,<br />

1000, 500<br />

pulps e<br />

HEC,<br />

HMHEC g ,<br />

(CMC)<br />

HMCMC g<br />

HMCMC g<br />

TSK PW<br />

G6000,<br />

G4000<br />

TSK PW<br />

G6000,<br />

G4000<br />

TSK SWXL HPC-IND h<br />

Ultrastyragel f<br />

10 4 ,10 3 ,<br />

500,<br />

2 100<br />

CEPAN i j —<br />

10 4 ,10 3 ,<br />

500<br />

NaCl (aq)<br />

(50:50)<br />

0.05 M NaCl<br />

with 0.02%<br />

NaN3<br />

Buffer c :MeOH<br />

(4:1)<br />

Phosphate<br />

buffer,<br />

I ¼ 0.1, pH 6.5<br />

LALLS/DRI or<br />

UV (208)/<br />

DRI<br />

0.8 163<br />

DRI 1.0 164<br />

MALLS/RI 0.8 165<br />

0.05 M NaCl RI 1.0 166<br />

THF UV — 167<br />

0.1 M NaNO3 MALLS/DRI — 144<br />

0.1 M NaNO3 MALLS/DRI — 145<br />

THF DRI/UV (265) — 143<br />

3% LiCl/<br />

DMAc<br />

a <strong>Exclusion</strong> limit 80,000 polyethylene glycols (PEG).<br />

— 1.0 146<br />

b<br />

<strong>Exclusion</strong> limit 1000 PEG.<br />

c<br />

10 mM KCl, 13 mM sodium borate decahydrate, 1.5 mM dextrose, <strong>and</strong> 90 mM boric acid.<br />

d<br />

Trade name: Methocel A15-LV.<br />

e<br />

From sugar cane bagasse.<br />

f<br />

<strong>Exclusion</strong> limit in A˚ 210<br />

( ¼ 10 m).<br />

g<br />

HMHEC modified with C16 <strong>and</strong> HMCMC modified with hexadecylamine.<br />

h<br />

Indometacin (IND) grafted onto hydroxypropyl cellulose (HPC).<br />

i Cellulose–polyacrylonitrile copolymer.<br />

j Packing material not reported.<br />

© 2004 by Marcel Dekker, Inc.

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