The TSKgel Hhr column line consists of eight columns with different pore sizes, TSKgel G1000Hhr through TSKgel G7000Hhr, and five columns with an extended linear range of the calibration curve. The calibration curves are shown below.

Calibration curves on TSKgel Hhr columns

Main characteristics

• Maximum operating temperature for TSKgel Hhr-type columns is 140°C.
• Broad solvent range. All TSKgel Hhr-type columns are shipped in THF, which can be exchanged for a wide variety of organic solvents as shown below.
• TSKgel Hhr-type columns are conventional GPC columns with dimensions of 7.8mm ID x 30cm. Most HPLC systems do not require optimization of extra-column bandbroadening effects when working with conventional GPC columns.

Solvent compatibility for TSKgel Hhr (and SuperH) columns
The column shipping solvent limits the types of solvents that can be used with each column type.

Column type Shipping solvent* Can be replaced with SuperH and Hhr1 Tetrahydrofuran2 acetone, ethanol, quinoline, benzene, o-dichlorobenzene, ethyl acetate, dodecane, FC-113, carbon tetrachloride5, dichloromethane, dichloroethane, trichloroethane, n-hexane, cyclohexane, xylene, tetrahydrofuran, chloroform, 1,4-dioxane, hexafluoroisopropanol, toluene, 1-chloronaphthalene, dimethylaceto acetamide, methyl ethyl ketone, trichlorobenzene, m-cresol, dimethylformamide, methylpyrrolidone, o-chlorophenol/chloroform, dimethyl sulfoxide, pyridine

Notes:
1) In case of TSKgel SuperH and Hhr, see table below for appropriate flow rates for solvent exchange. After switching to a very polar solvent, switching to a nonpolar is not recommended.
2) All TSKgel Hxl, Hhr, SuperHZ and SuperH analytical columns are shipped containing tetrahydrofuran (THF), except High Temperature (HT) columns, which contain o-dichlorobenzene.
3) Prolonged exposure to carbon tetrachloride can corrode the stainless steel parts of a column and an HPLC system.
*  100% methanol cannot be used with TSKgel H-type columns; use this solvent with TSKgel SW-type or Alpha-type columns.
** TSKgel H columns may be specially ordered with this shipping solvent.

Recommended flow rates (mL/min) for solvent exchange in TSKgel SuperH and Hhr columns

Solvent SuperH (6.0mmIDx15cm) Hhr (7.8mmIDx30cm) n-Hexane 0.50 0.9 methyl ethyl ketone 0.40 0.7 dichloromethane, ethyl acetate 0.35 0.6 toluene, chloroform 0.30 0.5 dimethylformamide 0.20 0.4 carbon tetrachloride, pyridine 0.15 0.3 dimethyl sulfoxide, dioxane, ethanol, N-methylpyrrolidone, o-dichlorobenzene 0.10 0.2 quinoline, hexafluoroisopropanol, 1-chloronaphthalene 0.05 0.1

Recommended Solvents by Application for TSKgel H-type columns

Recommended solvent Application THF polystyrene, epoxy resin, phenoxy resin, polycarbonate, polyisoprene, polyvinyl acetate, polyvinyl chloride, monoglycerides, fatty acids, polybutadiene, poly(methyl methacrylate), poly(styrene-butadiene), poly(styrene-acrylonitrile) N,N-Dimethylformamide (DMF) +/- 5mM LiBr polyvinyl chloride, polyvinyl fluoride, urea resins, polyurethane, polystyrene, polyester, polyimido ether, polyimido ester, polyphenol (aqueous solution), polyacrylonitrile o-Dichlorobenzene (ODCB) polyethylene, polypropylene Chloroform polycarboxylic ether, acrylic resin, epoxy resin, polystyrene m-Cresol/Chloroform nylon, polyseter, polyamide, poly (ethylene terephthalate) Toluene polybutadiene, polysiloxane

Columns with linear calibration curves
The TSKgel Hhr product line contains five linear, or mixed-bed columns, in which particles with different pore sizes are blended to provide an extended linear calibration curve. The mixe-bed columns feature increasing linear calibration ranges, from TSKgel GMHhr-L, GMHhr-N, GMHhr-M, to GMHhr-H. TSKgel GMHhr-H(S) HT is a high temeperature mixed bed column shipped in ODCB, o-dichlorobenzene.

Contact us: Tech Service: 800-366-4875 (option #3) Customer Service: 866-527-3587 info.tbl@tosoh.com

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Separation Report -- Solvent-Compatible High Performance GPC Columns:TSKgel Hhr Series