Chromatography Columns with Sintered Disc & Glass Stopcock
- With Integral Sintered Disc, with Glass Stopcock.
- Manufactured from Borosilicate Glass.
- Printed in Anti Acid Blue/White Colour.
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CAT NO Effective Length(mm) Disc Dia. (mm) Approx. OD (mm) Pack Of 150 10 15 1 200 15 20 1 300 15 20 1 400 20 25 1 400 30 34 1 500 30 34 1 500 40 35 1 600 40 35 1 1000 40 35 1
OVERVIEW:
GWSI Glass Lab manufactures this chromatography column from premium borosilicate 3.3 glass with a sintered disc and glass stopcock for precise separation workflows. It delivers high thermal shock resistance, full chemical inertness, and hydrolytic resistance for reliable chromatography. Every unit is I.S.O. DIN, NABL calibrated for consistent analytical performance.
HISTORY:
Chromatography columns with sintered discs and glass stopcocks date back to early 20th-century separation science, solving the problem of controlled flow through packed stationary phases without particle loss. GWSI modernizes this design with borosilicate 3.3 durability, ceramic glass fusing, interchangeable ground joints, and autoclavable lab glass reliability.
APPLICATIONS:
* Pharmaceutical purification and compound isolation
* Biotech and analytical separation laboratories
* School, college, university, and educational institutes
* Industrial quality control and research labs
* Column chromatography requiring precise flow control
MANUFACTURING PROCESS:
We melt high-purity borosilicate 3.3, form the column tube through master hand-blowing or automated molding, apply ceramic glass fusing to interchangeable ground joints and the sintered disc, and complete controlled annealing to fully eliminate thermal stress.
TESTING PROCESS:
Every column receives manual polariscope stress testing for zero residual stress, followed by high-precision ISO, DIN standard verification — manual or automatic testing machine — and NABL gravimetric calibration for volumetric accuracy where applicable.
PRINTING PROCESS:
Graduations and markings are applied by precision screening with ceramic glass enamels, baked in high-temperature kilns to permanently fuse the scale into the borosilicate 3.3 matrix so it never fades.
PACKAGING PROCESS:
We perform cosmetic sorting to filter out blemishes, pair the column with its glass stopcock securely, and pack in heavy-duty double-wall boxes with shock-absorbing bubble wrap for safe export from Ambala, the Science City.
MAINTENANCE & SAFETY:
* Autoclavable lab glass: sterilize at 121 °C with the glass stopcock fully open.
* Clean with non-abrasive detergents; protect interchangeable ground joints, sintered disc, and glass surfaces from chips.
* Confirm hydrolytic resistance before prolonged use with acidic or basic mobile phases.
* Store vertically in a stable rack away from direct heat sources.
* Inspect for polarization stress before high-thermal-shock cycles.