Hari Shankar Singhania
Elastomer And Tyre Research Institute
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Chromatographic Techniques

GC-MS Instrument

GC-MS Instrument

Gas Chromatography Mass Spectroscopic System (GC-MS) is used in analytic chemistry for separating and analyzing compounds that can be vaporized without decomposition. The GC-MS system is assembled with CDS pyrolyser and is used to analyse the following:
  1. Identification of Rubber by Pyrolysis-Gas Chromatography
  2. SBR/BR blend ratio during reverse engineering
We are capable of performing the test in compliance with the following standards:
  1. ASTM D3452
  2. SOP-31-WI-703: 2018

GC-MS-FID Instrument

GC-MS-FID Instrument

The GC-MS equipped with flame-ionization detection (FID) can detect almost all carbon containing compounds and is used to analyse the following:
  1. Carbon chain distribution of Wax
  2. Assay of rubber chemicals
  3. Purity of solvents
  4. Antioxidant and accelerator type identification in finished rubber product
  5. Stearic acid fraction determination
  6. Bloom analysis
We are capable of performing the test in compliance with the following standards:
  1. ASTM D5442
  2. ASTM D4937
  3. SOP-32-WI-310: 2019

GPC Instrument

GPC Instrument

Gel permeation chromatography (GPC) is a type of size-exclusion chromatography (SEC), that separates analytes on the basis of size, typically in organic solvents. The technique is often used for the analysis of polymers. It is used to analyse the following:
  1. Number average molecular average of the polymer
  2. Weight average molecular average of the polymer
  3. Polydispersity index (PDI)
We are capable of performing the test in compliance with the following standards:
  1. ASTM D6474

HPLC Instrument

HPLC Instrument

High-performance liquid chromatography (HPLC) is a technique in analytical chemistry used to separate, identify, and quantify each component in a mixture. It relies on pumps to pass a pressurized liquid solvent containing the sample mixture through a column filled with a solid adsorbent material. Each component in the sample interacts slightly differently with the adsorbent material, causing different flow rates for the different components and leading to the separation of the components as they flow out of the column. It is used to analyse the following:
  1. Purity of Rubber chemical antidegradant
  2. Assay of accelerators
We are capable of performing the test in compliance with the following standards:
  1. ASTM D5666

Elemental Analysis

Spectroscopic Techniques

Thermal Analysis