818397
TSKgel® GMHHR-H(S) HT Guard Column
phase polystyrene-divinylbenzene, GMH, L × I.D. 7.5 cm × 7.5 mm, 30 μm particle size
Synonym(s):
TSKgel® GPC Columns for Applications up to 140° C
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About This Item
UNSPSC Code:
41115711
eCl@ss:
32110501
material
stainless steel
Agency
suitable for USP L21
product line
TSKgel®
manufacturer/tradename
Tosoh 18397
parameter
140 °C temperature
2.5 mL/min flow rate
technique(s)
HPLC: suitable
L × I.D.
7.5 cm × 7.5 mm
matrix
polymer particle platform
matrix active group
polystyrene-divinylbenzene phase, GMH
particle size
30 μm
pore size
mixed
separation technique
size exclusion (SEC)
General description
Guard Column for 7.8mm ID TSKgel GMHHR-H(S) HT columns.
TSKgel HT (High Temperature) columns are for the analysis of organic-soluble polymers at temperatures up to 140°C and are shipped in o-dichlorobenzene (ODCB), which can be exchanged for 1-chloronaphthalene and trichlorobenzene. The TSKgel mixed bed columns are packed with particles of different pore sizes that are blended to provide an extended linear calibration curve. Mixed bed columns are used when a broad range of polymer molar masses is expected in the sample. Shearing, which can be observed when analyzing ultra-high molar mass polymers on columns packed with 5 micron or smaller particles, can be overcome by using the TSKgel GMHhr-H(S) HT column, which is packed with 13 micron particles. The (S) is a reference to this shearing effect.
Physical form
ODCB can be exchanged by 1-chloronaphthalene and trichlorobenzene.
Legal Information
TSKgel is a registered trademark of Tosoh Corporation
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