User Benefits
Application
News
Using the GCMS-TQ8040 RX and the Multi-Mode Injection Unit (MMI), 12 volatile PFAS including compounds listed in EN 17681-2,
can be analyzed at the ppb level without preconcentration.
The spike recovery test shows good percentage recoveries of all compounds (80–120 %) that are at or below the EU Persistent
Organic Pollutants (POPs) threshold limit (25 ppb).
Analysis of Volatile PFAS in Textiles Using
GCMS-TQ8040 RX with MMI
Yui Higashi, Masataka Furuta
Gas Chromatograph Mass Spectrometer
Table 1 Target Compounds
GCMS-TQ8040 RX
Delivering highly sensitive multi-component simultaneous
analysis, the system improves operational efficiency through
Analytical Intelligence , while also providing performance as a
single GC-MS. The GCMS-TQ RX Series is a versatile triple
quadrupole GC-MS that demonstrates high performance across
a wide range of application fields. By combining it with the
newly developed Multi-Mode Injection Unit (MMI), multiple
injection methods are supported and analytical capability is
further expanded.
*1: Not targeted by EN 17681-2 but measured by GC/MS/MS
Fig. 1 GCMS-TQ 8040 RX
Introduction
Per- and polyfluoroalkyl substances (PFAS) are used in textile
products because of their useful properties, such as heat
resistance and water repellency. However, PFAS are also
extremely stable substances that resist degradation and
accumulate in the environment, which has led to concerns
about their effects on humans. Since eliminating sources of
PFAS is essential to prevent them from accumulating in the
environment and in living organisms, many countries are
passing laws that restrict the production, distribution, and use
of PFAS in products. For example, the EU POPs Regulation sets a
permitted threshold of up to 0.025 mg/kg (25 ppb) for certain
PFAS (including PFOA, PFOS, and PFHxS) in substances,
mixtures, or articles
1)
. EN 17681 defines standard test methods
for PFAS analysis in textiles
2),3)
.
In a previous Application News, No. 01-01108, an example of
analyzing volatile and nonvolatile PFAS in textiles using
LC/MS/MS and GC/MS/MS based on this standard was
introduced. This study shows an example of trace analysis of
volatile PFAS (Table1) in textiles using the newly developed
GCMS-TQ RX series equipped with the Multi-Mode Injection
Unit (MMI).
# Compounds
Sample
Type
IS
1 Me-PFOA Target -
2 4:2FTOH*
1
Target 1
3 6:2FTOH*
1
Target 1
4 8:2FTOH*
1
Target 1
5 10:2FTOH*
1
Target 1
6 6:2 FTA Target 2
7 8:2 FTA Target 2
8 10:2 FTA Target 2
9 6:2 FTMA Target 2
10 8:2 FTMA Target 2
11 NMeFOSE Target 2
12 NEtFOSE Target 2
13 9Me 8:2 FTOH Surrogate 1
14 D7-N-MeFOSE Surrogate 2
Multi-Mode Injection Unit (MMI)
The Multi-Mode Injection Unit (MMI) supports a wide range of
injection modes in a single unit, including split/splitless (SPL),
programmable temperature vaporization (PTV), large-volume
injection (LVI), direct injection, and thermal
desorption/extraction (TD/TE). Dedicated software with an
intuitive user interface enables easy method creation and
seamless method transfer, simplifying analytical workflows. In
this Application News, use of the MMI enables a threefold
increase the injection volume compared with conventional
injection methods, while maintaining peak shape.
Fig. 2 Multi-Mode Injection Unit
