HPLC refers to High Performance Liquid Chromatography. Texas OilTech Laboratories Inc. offers a wide assortment of testing instruments based on chromatographic analysis.

GC Gas Chromatographs HPLC/RI High Performance Liquid Chromatography with Refractive Index Detector HPLC/UV High Performance Liquid Chromatography with Ultraviolet Detector GC/MS Gas Chromatograph/Mass Spectrometer Ion Chromatography (IC

 

Some Important Chromatographic Tests

• Composition Breakdown of Gaseous Fuels for Power Plants
• Inert Gas Identification
• Heating Values in Btu/cubic foot and Btu/pound
• Simulated Distillation
• Boiling Range Distribution of Petroleum Fractions
• Analysis of Ethylene Glycols and Propylene Glycols
• Motor Oil Volatility
• Impurities in High Purity Petrochemicals
• Analysis of Petroleum Waxes
• Purgable Organic Compounds in Water
• Organochloride Pesticides in Water

Industries Served

• Utility and Independent Power Producers
• Petroleum
• Chemical
• Investigative Projects

Chromatography Capabilities
HPLCs are equipped with UV and Refractive Index detectors and are capable of determining PAH compounds in oils and other organic compounds. They can determine with remarkable accuracy total aromatics present in fuels. GCs, and a combination of various detectors of FID or TCD, ECD and PID, are capable of performing composition breakdowns on organic substances to determine their fingerprint, purity, and structures.

Other specially designed GCs with combinations of detectors are capable of providing highly precise composition breakdown of gases and gaseous fuels GC and Chemiluminesence detector combinations provide the most accurate sulfur speciation analysis available.

A GC equipped with a Mass Spectrometer (MS) allows for the identification of unknown organic compounds and their concentrations with great accuracy, in contaminants, oils, unknown substances, or samples.

An IC instrument with great precision provides information on the presence of cations in inorganic compounds. It is the most effective method of determination of chloride, fluoride, sulfide, and sulfate, etc. in water, which is crucial in use of water at plants using turbines to produce electric power.

Special Purpose GC Columns

• High Resolution Analysis of Complex Hydrocarbon Mixtures
• Volatile Sulfur Compounds
• Volatile and Semi-volatile Pollutants by GC/MS
• Simulated Distillation
• Aromatics and Mineral Spirits
• Amines and Basic Compounds

GC Detectors

• Thermal Conductivity Detector TCD
• Flame Ionization Detector FID
• Thermionic Specific Detector TSD
• Electron Capture Detector ECD

References
1. IP 391-95 Petroleum Products - Determination of Aromatic Types in Middle Distillates - High Performance Liquid Chromatography Method with Refractive Index Detection.
2. EPA 1653, Revision A. PAH Content of Oil by HPLC/UV. Polynuclear Aromatic Hydrocarbon (PAH) Content of Oil by High-Performance Liquid Chromatography (HPLC) with an Ultra-Violet Absorption
(UV) Detector.