SGE has a number of unique tubing products (Glass Lined Tubing - GLT™ , and PEEK™ coated fused silica tubing - PEEKsil™) that allow chromatographers to perform applications not possible without these formats.

HPLC Hardware

Stainless Steel

SGE stainless steel tubing is available in a number of different size combinations, suitable for your tubing needs.

Features and Benefits
  • Smooth and clean bore
  • 5, 10 and 25 meter lengths supplied in coils. Where tubing OD is smaller than 1/16", ends are bushed to 1/16" and GC ferrules are supplied.
  • 5, 10 and 25 meter lengths supplied cleaned and passivated.

Recommended Applications
GC gas lines.

Glass Lined Tubing (GLT™)

DATASGE GLT™ (Glass Lined Tubing) was invented and patented to address the problem of achieving a completely inert chromatographic system. It is made by fusing a borosilicate glass lining onto the inside surface of stainless steel tubing. GLT can either be used as straight tubing or it can be machined or shaped into virtually any chromatography accessory. The options are limitless.

Features and Benefits
  • GLT is inert and has excellent resistance to strong acids and bases, unlike inferior silica coated brands.
  • Biocompatible making it ideal for many HPLC applications.
  • Mirror surface finish allows high HPLC column efficiencies.
  • GLT is stable and withstands high temperatures to 500°C.

Recommended Applications
GLT can be used for:
  • Reactor tubing.
  • Transfer lines or flow lines.
  • Stack probes for environmental monitoring.
  • HPLC columns for protein and biosensitive analyses.
  • Mass spectrometer interfaces.
  • Thermal desorption tubes.
  • Inert tee pieces and unions.


DATAPEEKsil® is constructed from a core of smooth precision bore fused silica tubing bonded to a PEEK outer sheath. It is manufactured to exacting tolerances of bore size and concentricity, for reproducible flow rates and reliable connections.

The separation achieved is easily lost in tubing and connectors as a result of dispersion. PEEKsil reduces dispersion and therefore loss of efficiency, sensitivity and resolution.

Features and Benefits
  • Inert smooth flow path, to minimize band broadening.
  • Precise inside bore diameter.
  • Flexible and robust.
  • Lower sample carry over.
  • Color coded for easy identification of internal diameter.
  • Perfectly square cut and polished ends.
  • Capable of withstanding high pressures.
  • Effective pH range of 0 - 10 (not compatible with hydrofluoric acid).
  • Compatible with most organic solvents (unlike PEEK).

Recommended Applications
HPLC and LC - MS.

UHPLC ProteCol® Bio-Inert

ProteCol® Bio-Inert UHPLC column hardware provides the foundation for improved separations and analysis.

Traditional UHPLC column hardware is made from stainless steel which may influence the behaviour of analytes with known metal chelating activity. The surface roughness of stainless steel column hardware also contributes to the dispersion effects, resulting in lower performance of the column.

ProteCol Bio - Inert UHPLC column hardware is glass lined, providing substantial improvements in smoothness and inertness to optimize the analysis.

Features and Benefits
  • Improved column performance for bio applications.
  • Designed for continuous use at 20,000 psi (1,379 bar).
  • Optimize the performance of your phase.

Recommended Applications
UHPLC bio applications.

Fused Silica

Coated fused silica tubing exhibits excellent flexibility, chemical stability, tensile strength and exacting tolerances making it the tubing of choice for GC capillary applications, LC tubing and other micro tubing requirements.

Features and Benefits
  • High homogeneity.
  • 100% proof tested for strength.
  • Excellent resistance to thermal shock.
  • Chemical inertness.
  • Standard polyimide temperature resistance to +380°C equivalent to other high temperature polyimides.
  • Polyimide coating is chemically resistant.
  • Low dielectric constant, low dielectric loss.
  • Impermeable to all gases (except H2, He).
  • Free of thermal hysteresis.
  • Low weight loss (below devitrification temperature).
  • Optical properties of uncoated transparent above 180nm.
  • High intrinsic tensile strength.
  • Uncoated, temperature resistant to 1000°C.
  • Pressure resistant to 1000 bar.
  • Very low thermal expansion.
  • Internal surface modification is available.

Recommended Applications
  • Capillary GC.
  • HPLC.
  • Bioanalytical.
  • High temperature GC.

Avoid use with hydrofluoric or phosphoric acids, alkalis and alkali - metalized compounds as dissolution of silica glass and surface devitrification may occur.