How It Works
Purge and Trap extracts VOCs from the sample matrix using a controlled flow
and deposits the VOCs onto a sorbent trap, which is then heated and back
flushed to a GC or GC/MS system. While this theory is simple, many factors affect
the performance of the system. The Lumin PTC employs the latest technology
in all of its components including an electronic Mass Flow Controller (MFC),
improved moisture control and a redesigned, intuitive software control that
monitors the entire system performance.
Applications and Industries
VOC sampling and analysis are used in a wide range of applications in
the following industries:
- Environmental
- Food and Beverage
- Pharmaceutical
- Petrochemical
Methods
There is 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 - MEE Method HJ 639
- ASTM and Standard Methods
- Massachusetts VPH and GRO Methods
The Lumin was designed from the ground up to provide
the highest levels of productivity in the laboratory.
Some of the Lumin’s time saving features include:
Reduced trap cooling times – The Lumin uses a fan that,
in conjunction with dedicated ducting, reduces trap
cooling times by 22% or more over previous models. This
is made possible by pulling air from outside the Lumin,
rather than from within the unit. Shorter cool down time
means more samples per day.
Simplified access to the trap box – Full access to the
analytical trap is now as simple as opening a door. This
time saving feature makes trap changes easier and
reduces downtime during this routine maintenance task.
Additionally, the consolidated solenoid valve manifold
can also be found behind this door, simplifying less
routine tasks, such as benchmark testing, and checking
fittings for leak elimination.
Improved moisture management – The Moisture Control
System (MCS) greatly reduces the amount of water vapor
transferred to the GCMS system. Not only will less water
vapor improve MS sensitivity and data reproducibility, but
a drier analysis also improves GC column life expectancy,
and reduces the frequency of MS maintenance.
Lumin TekLink™ Software – The look and feel of the
TekLink™ software is designed to be simpler and more
intuitive than previous versions, while retaining all of
your favorite features, such as editing methods on the
fly, automated leak check and benchmark features. It is
also touch screen compatible, taking advantage of all
of the features of current computer systems. Finally, the
Lumin communicates with the controlling PC via USB
connection
