Lumin PTC – Purge and Trap Concentrator

In 1974, Tekmar developed an idea that revolutionized the way laboratories performed Volatile Organic Compound (VOC) testing.Since then, Tekmar has continued to build on the foundation of the initial Purge and Trap technique one innovative layer at a time. The Lumin builds on seven previous generations, making us the industry’s cornerstone of technique and support.

Description

In 1974, Tekmar developed an idea that revolutionized the way laboratories performed Volatile Organic Compound (VOC) testing. Since then, Tekmar has continued to build on the foundation of the initial Purge and Trap technique one innovative layer at a time. The Lumin builds on seven previous generations, making us the industry’s cornerstone of technique and support.

The fundamentals of Purge and Trap are time proven. By bubbling a purge gas through your sample matrix, the VOCs are removed and collected on an analytical trap. After the purging is complete, the trap is heated and the VOCs are released and delivered to a gas chromatograph for separation and detection. The Lumin uses components that are absolutely essential to perform a successful Purge and Trap analysis; those being an electronic mass flow controller (MFC), superior trapping technology, and inert sample pathway.

The heart and soul of all of our Purge and Trap Systems is the Teledyne Hastings Mass Flow Controller. The MFC delivers the purge gas with unmatched precision and accuracy. The most advantageous feature of utilizing the MFC is the ability to instantaneously change the gas flows via the Teklink software, at any time during the Purge and Trap process.

The Teledyne Tekmar U-shaped trap offers trapping benefits that have never been seen before by Purge and Trap concentrators. The U-shaped trap is capable of adsorbing the VOCs of interest while minimizing the collection of unwanted compounds, such as water. The ultra-fast trap heater ensures that the U-shaped trap is desorbed rapidly and the VOCs are delivered to the GC system quickly. Just as importantly, the Lumin cools the trap faster than ever, thanks to an improved fan, and dedicated ductwork. These features allow precise control of the trap cooling air, reducing total run time and increasing sample throughput.

The key to minimizing carryover is the Lumin’s inert sample pathway. The tubing and fittings have been treated to provide unprecedented low carryover which permits the user to calibrate with more confidence.

Note: The Lumin TekLink™ software runs in a Microsoft© Windows 7 or greater environment.​

Applications

VOC sampling and analysis are used in a wide range of applications in the following industries:

  • Environmental
  • Food and Beverage
  • Forensics and Toxicology
  • Pharmaceutical
  • Petrochemical

Methods 

There are a wide array of methods the Lumin PTC can accommodate​, including but not limited to, the following:

  • USEPA 502.1, 502.2, 524.2, 524.3, 524.4, 503.1, 601, 602, 603, 624, 8010, 8015, 8020, 8021, 8030, 8240, 8260,
  • ASTM and Standard Methods,
  • Massachusetts VPH and GRO Methods

Specifications

Sample typeLiquids: drinking water and wastewater up to 15mm of sediment on bottom of 40mL vial.

Low-level solids: Natural soil and sediments

High-level solids: all soil and sediments

TechniquePurge and Trap
Common MethodsUSEPA 502.1, 502.2, 524.2, 524.3, 524.4, 503.1, 601, 602, 603, 624, 8010, 8015, 8020, 8021, 8030, 8240, 8260, ASTM, Standard Methods, Massachusetts VPH, GRO Methods, MEE Method HJ 639
Gas handling
Electronic MFCVariable flow rates 5-500mL/min between
Samples
PathwayTubing with Inertium coating and fittings are SilcoNert 2000
Sparge vessel5/25 mL frit/fritless sparge vessel.
Heating
Trap HeaterUp to 350°C, cools down from 250°C to 40°C in <70 seconds
6-port switching valveUp to 250°C
External transfer lineUp to 250°C
Sample mountUp to 90°C
CondenserUp to 200°C
Sample heaterUp to 90°C
DimensionsHeight: 43,7 cm
Width: 22,6 cm
Depth: 47,5 cm
Weight12,2 kg
Gas RequirementsUltra-high purity (99,999%) Helium or Nitrogen
Communication InterfaceUSB
Power Requirements100-120VAC ±10%, 50/60 Hz, 10.0A; 220-240VAC ±10%, 50/60 Hz, 5.0A.
Minimum Computer RequirementsMicrosoft Windows 7 or higher, one free USB port
OptionsGuardian foam sensor, Guardian and Eliminator, AquaTek LVA autosampler.

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