Description

Porapak p-S (100-120 Mesh ASTM) is a specialized porous polymer bead packing material designed for gas chromatography (GC). This product is engineered for the efficient separation and analysis of complex gas mixtures, offering excellent resolution for polar and non-polar compounds. It is an essential consumable for analytical laboratories, R&D facilities, and quality control units in the petrochemical, environmental monitoring, and pharmaceutical industries.

Application

• Gas Chromatography (GC) Analysis: Primary packing material for analytical and preparative GC columns.
• Permanent Gas Separation: Effective for the analysis of fixed gases (e.g., O2, N2, CO, CO2, CH4) in various matrices.
• Hydrocarbon Analysis: Separation of light hydrocarbons (C1-C5) in natural gas, refinery gas, and other petrochemical streams.
• Environmental Monitoring: Detection and quantification of volatile organic compounds (VOCs) and other airborne pollutants.
• Pharmaceutical & Chemical R&D: Used in purity testing, reaction monitoring, and residual solvent analysis.
• Food & Flavor Industry: Analysis of headspace components, aromas, and packaging gases.

Basic Information

Product Name	Porapak p-S (100-120 Mesh ASTM) For GC
CAS No.	63993-71-5
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Porapak PS; Porapak P-S; Poly(styrene-divinylbenzene) copolymer; Styrene-DVB copolymer; Porous polymer beads PS-DVB; GC packing material Porapak; Chromatographic packing Porapak P-S; Divinylbenzene-styrene copolymer
EINECS	Contact for details

Quality Control

Our Porapak p-S is manufactured under a strict quality management system. Each batch undergoes rigorous testing for critical parameters including mesh size distribution, surface area, pore volume, and chromatographic performance to ensure consistency and reliability. Certificates of Analysis (COA) detailing these specifications are available upon request to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from strong oxidizing agents and incompatible materials. The product is hygroscopic (moisture-sensitive); ensure the container is sealed after each use to prevent moisture uptake, which can affect performance.

Specification

Item	Specification
Product Type	Porous Polymer Beads
Base Polymer	Styrene-Divinylbenzene Copolymer
Mesh Size	100 - 120 Mesh (ASTM)
Surface Area	Contact for details
Pore Volume	Contact for details
Polarity	Medium Polarity
Maximum Temperature	Contact for details
Appearance	White to off-white spherical beads

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.