Highly-sensitive detection of CP-type synthetic cannabinoids from e-cigarettes by novel Zn/Bi bimetallic organic framework-derived ZnO-Bi 2 O 3 heterojunctions sensing platform
Abstract
Synthetic
cannabinoids
(SCs),
often
masqueraded
in
“e-cigarettes”,
are
novel
popular
psychoactive
substances
with
diverse
structures
and
complex
material
compositions,
making
their
detection
more
challenging
for
prompt
intervention.
Herein,
a
electrochemical
sensing
platform
based
on
Zn/Bi
bimetallic
organic
framework-derived
ZnO-Bi2O3
heterojunctions
was
constructed
the
of
cyclohexanylphenol
synthetic
(CP-type
SCs:
CP47,497
CP55,940).
The
characteristics
were
studied
under
various
conditions,
including
solvent
composition,
molar
ratio
metal,
calcination
temperature.
optimized
heterojunction
exhibited
larger
surface
area,
active
sites,
stronger
stability,
conducive
to
enhanced
catalytic
performance.
Under
optimal
modified
screen
printed
electrode
(ZnO-Bi2O3/SPE)
showed
good
linear
responses
toward
CP55,940
within
concentration
ranges
7×10−
9~5×10−
6
M
1×10−
M,
limits
2.3×
10−
9
3.3×
10
respectively.
sensor
also
depicted
excellent
reliability
can
be
used
on-site
target
objects
e-cigarettes
high
recovery
rates.
Finally,
oxidation
mechanism
first
time,
fingerprints
CP-type
SCs
speculated.
Research Square (Research Square), Journal Year: 2024, Volume and Issue: unknown
Published: Nov. 8, 2024
Language: Английский