Chromatography Absorption Columns Plain with Glass Key Stopcock
- With Glass Stopcock.
- Manufactured from Borosilicate Glass.
- Printed in Anti Acid Blue/White Colour.
- Chromatography Absorption Columns Plain with Glass Key Stopcock
CAT NO Effective Length(mm) Approx. Outer Dia. (mm) Pack Of 200 10 1 300 15 1 500 20 1 600 25 1 600 42 1 1000 50 1 1150 100 1 1800 100 1
OVERVIEW :
GWSI Glass Lab manufactures plain chromatography absorption columns with a glass key stopcock from premium borosilicate 3.3 glass. Designed for versatile separation workflows, they deliver high thermal shock resistance, full chemical inertness, and hydrolytic resistance. Every column is I.S.O. DIN, NABL calibrated for consistent analytical performance.
HISTORY :
Plain absorption chromatography columns with glass key stopcocks originated as basic separation vessels for packing stationary phases and controlling mobile phase flow without built-in filtration. GWSI modernizes this practical design with borosilicate 3.3 durability, ceramic glass fusing, interchangeable ground joints, and autoclavable lab glass reliability for flexible lab use.
APPLICATIONS :
* Pharmaceutical compound isolation and purification
* Biotech and analytical separation laboratories
* School, college, university, and educational institutes
* Industrial quality control and research labs
* General chromatography requiring direct 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 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 where volumetric measurement applies.
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 any blemishes, pair the column with its glass key 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 key fully open.
* Clean with non-abrasive detergents; protect interchangeable ground joints and the glass key 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.