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818397 Supelco

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: TSKgel® GPC Columns for Applications up to 140° C

  •  eCl@ss 32110501



Related Categories Analytical/Chromatography, HPLC, HPLC & FPLC Columns for Biopolymer Separations, High Temp TSKgel Gel Permeation Columns (HT=140°C), TSKgel Gel Permeation Columns for Organic-Soluble Polymers,
mfr. no.   Tosoh, 18397
parameter   140 °C temperature
  2.5 mL/min flow rate
application(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
suitability   suitable for L21 per USP
mode of chromatography   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.

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Legal Information

TSKgel is a registered trademark of Tosoh Corporation

Price and Availability

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Safety & Documentation

Safety Information

Safety Information for this product is unavailable at this time.


Certificate of Analysis

Protocols & Articles

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