BTEX Analysis System

OI Analytical’s BTEX Analysis System is the total package for analyzing Benzene, Toluene, EthylBenzene, and Xylenes (BTEX) in water, soil, and solids based on USEPA methods.


Our BTEX Analysis System offers preconfigured systems to simplify and customize instrumentation to provide complete GC-based solutions. A powerful lineup of instruments working together ensures reliable analyses of even the most challenging analytical problem. The BTEX Analysis System product lineup includes: Agilent GC, OI Analytical Model 4760 Purge-and-Trap Sample Concentrator, Model 4450 Tandem PID/FID, columns, and standards.

Principal applications for the System VPH include: Massachusetts Volatile Petroleum Hydrocarbon (VPH) method; benzene, toluene, ethylbenzene, xylenes, and other aromatics (BTEX); USEPA Methods 602, 8015, and 8020; GRO and DRO; leaking underground storage tank monitoring; fuel spills in soils; combined total leachate program; fuels in water (wastewater); ISO 15009 and 15680; and standard methods 6200C.

BTEX Analysis System Features:

  • Standard system package includes all necessary hardware for analysis: Agilent GC, OI Analytical Model 4760 Purge-and-Trap Sample Concentrator, Model 4450 Tandem PID/FID, columns, and standards
  • Sample Concentrator provides built-in Cyclone Water Management, rapid trap heating and cooling, Silcosteel sample pathway, unique protective sparge filter design, and optional Infra-Sparge Sample Heater for improving sample recoveries
  • Uses the Tandem PID/FID for excellent sensitivity and linearity
  • PID hidden-window design prevents lamp fouling
  • Third detector capability offers additional analyses
  • Choice of capillary columns
  • Choice of autosamplers available for automated analysis
  • Optional automated pH measurement
  • Includes installation and startup using appropriate standards or methods in systems delivered in the U.S.
General Specifications  
Standard System VPH and System BTEX Hardware
  • Eclipse Purge-and-Trap Sample Concentrator  
  • Model 4450 Tandem PID/FID detector system  
  • Agilent GC
  • OI Analytical low-dead-volume injector or Agilent split/splitless injector
  • Method-appropriate GC capillary column


Performance Specifications  
Minimum Detectable Mass  
PID <40 pg benzene 
FID 5 pg carbon/second propane
Dynamic Range  
PID >106
FID ±10% over a 106 range
Communications Interface  Ethernet/LAN connection to the sample concentrator and GC
Detector Output  1V full-scale analog voltage



Power Requirements

110 VAC (±10%), 60 Hz
220 VAC (±10%), 50 Hz 

Benchspace Requirements 109.2 linear cm (43 inches) for a standard system
Gas Requirements Ultrahigh purity H2 , and He (99.999% purity or better)
Brochures and Catalogs
Specification Sheets