New Application Notes – PAHs, vapours from e-cigarette and tobacco, and essential oils
Tuesday, 21 June 2016 at 3:33:PM
Four new Application Notes have recently been published by Markes, covering applications of thermal desorption (TD) and time-of-flight mass spectrometry (TOF MS).
Application Note 115: Simple and reliable quantitation of
ppt-level PAHs in air by TD–GC–MS.
This Application Note describes the performance of a sorbent tube
and optimised analytical protocol dedicated to the detection of ppt-level
polycyclic aromatic hydrocarbons (PAHs) in ambient air. Using active (pumped)
sampling with analysis by TD–GC, this innovative approach completely avoids the
labour-intensive solvent-extraction protocol employed in many standardised
methods. The optimised analytical method also offers increased sensitivity due
to increased extraction efficiency, absence of a dilution stage, and efficient
transfer of compounds to the GC.
Application Note 118: Rapid profiling of VOCs and SVOCs in
e-cigarette vapours for regulatory compliance and quality control.
This Application Note describes a simple, quick TD-based approach
for the sampling and analysis of target compounds (such as nicotine, impurities
and flavour compounds) in vapours from flavoured e-cigarettes. Used in
conjunction with GC–MS analysis, the result is a versatile screening method for
tackling the challenge of regulatory compliance and quality control in this
rapidly expanding industry.
Application Note 537: Comprehensive insights into tobacco smoke
constituents using TD–GC×GC–TOF MS with Tandem Ionisation.
This Application Note demonstrates the enhanced separation and
unparalleled sensitivity that can be achieved in the characterisation of
cigarette smoke, using TD and GC×GC with BenchTOF time-of-flight mass
spectrometry, aided by Tandem Ionisation for simultaneous acquisition of hard
and soft EI data.
Application Note 538: Detailed characterisation of essential oils
by flow-modulated GC×GC–TOF MS with Tandem Ionisation.
In this Application Note, we describe the use of comprehensive
two-dimensional gas chromatography (GC×GC) with BenchTOF time-of-flight mass
spectrometry and Tandem Ionisation for characterisation and comparison of the
composition of essential oils, aiding rigorous quality control.
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