The metal- and covalent-organic frameworks-based molecularly imprinted polymer composites for sample pretreatment
TrAC Trends in Analytical Chemistry,
Год журнала:
2024,
Номер
178, С. 117830 - 117830
Опубликована: Июнь 24, 2024
Язык: Английский
Solid-phase extraction coupled with high performance liquid chromatography-triple quadrupole mass spectrometry for simultaneous determination of seven coumarins in water samples from drinking water treatment plants
Chinese Journal of Chromatography,
Год журнала:
2025,
Номер
43(1), С. 78 - 86
Опубликована: Янв. 1, 2025
Chlorinated
coumarins,
which
are
as
cytotoxic
highly
toxic
halobenzoquinones
toward
CHO-K1
cells,
have
recently
been
identified
disinfection
byproducts
in
drinking
water
processes.
Therefore,
detecting
coumarins
samples
collected
at
various
stages
from
treatment
plants
helps
assess
the
formation
of
chlorinated
water.
Hence,
a
simple,
rapid,
accurate,
and
sensitive
method
for
quantifying
is
required.
In
this
study,
was
developed
based
on
solid-phase
extraction
coupled
with
high
performance
liquid
chromatography-triple-quadrupole
mass
spectrometry
analyzing
seven
plants,
including
6,7-dihydroxycoumarin,
7-hydroxycoumarin,
6-hydroxy-4-methylcoumarin,
8-chloro-7-hydroxycoumarin,
coumarin,
7-chloro-6-hydroxy-4-methylcoumarin,
3,8-dichloro-7-hydroxycoumarin.
Sample
pretreatment
involved
using
HLB
columns,
followed
by
elution
methanol,
each
containing
0.25%
formic
acid.
The
extracted
solution
separated
via
gradient
Phenomenex
Luna
C18
column
(100
mm×2.0
mm,
3
mm)
0.1%
acid
aqueous
methanol
mobile
phases,
analytes
detected
triple-quadrupole
equipped
electrospray
ionization
source
multiple
reaction
monitoring
mode.
matrix
effect,
precision,
accuracy
were
investigated
raw
treated
matrices.
Matrix
effects
0.84-1.12
recorded
detection
coumarin
water,
while
values
0.67-0.70
3,8-dichloro-7-hydroxycoumarin
finished
three
exhibited
above
0.80
after
had
diluted
four
times.
These
results
suggest
that
only
simple
or
sample
dilution
required
to
accurately
determine
plants.
addition,
these
good
linear
relationships
their
respective
concentrations.
precision
evaluated
linearities
certain
range,
correlation
coefficients
(r)
greater
than
0.99
limits
(MDLs)
0.67-1.12
ng/L.
recoveries
61.4%-91.5%
spiked
levels
(20,
50,
100
ng/L)
relative
standard
deviations
(RSDs,
n=6)≤11.2%.
can
be
used
analyze
drinking-water
plant.
7-Hydroxycoumarin,
0.21-27.9
ng/L
100%
samples,
6-hydroxy-4-methylcoumarin
not
post-coagulated
post-carbon-filtered
but
found
sand-filtered
higher
latter
(4.69
former
(1.79
ng/L).
8-Chloro-7-hydroxycoumarin
(0.07
This
precise
provides
short
analysis
times,
effectively
monitor
real
removal
during
treatment.
Язык: Английский
A dummy template molecularly imprinted polymer-coated fiber array extraction for simultaneous HPLC analysis of eight biogenic amines in fermented horse milk
Analytica Chimica Acta,
Год журнала:
2025,
Номер
1352, С. 343901 - 343901
Опубликована: Март 6, 2025
Язык: Английский
Recent advances in synthesis and applications of hyper-crosslinked porous organic polymers for sample pretreatment: A review
Analytica Chimica Acta,
Год журнала:
2025,
Номер
unknown, С. 343934 - 343934
Опубликована: Март 1, 2025
Язык: Английский
Advanced Photocatalytic Treatment of Aqueous Disinfection By-products with Sodium Alginate Hydrogel-Encapsulated Titanium dioxide and Luminous Powder; A synergistic mechanism
Journal of environmental chemical engineering,
Год журнала:
2025,
Номер
unknown, С. 116317 - 116317
Опубликована: Март 1, 2025
Язык: Английский
A label-free electrochemical aptasensor combined Au/Ag@ZIF-8 and dual amplification strategy for sensitive detection of β-lactoglobulin
Food Bioscience,
Год журнала:
2025,
Номер
unknown, С. 106118 - 106118
Опубликована: Фев. 1, 2025
Язык: Английский
Epitope-imprinted biomaterials with tailor-made molecular targeting for biomedical applications
Youlu Diao,
Jia Gao,
Yue Ma
и другие.
Bioactive Materials,
Год журнала:
2024,
Номер
45, С. 162 - 180
Опубликована: Ноя. 21, 2024
Язык: Английский
Chameleon-inspired molecular imprinted polymer with bicolored states for visual and stable detection of diethylstilbestrol in water and food samples
Food Chemistry,
Год журнала:
2024,
Номер
469, С. 142531 - 142531
Опубликована: Дек. 18, 2024
Язык: Английский
Dual-Template Molecularly Imprinted Polymers for Dispersive Solid-Phase Extraction Combined with High Performance Liquid Chromatography for the Determination of Sulfonamide Antibiotics in Environmental Water Samples
Polymers,
Год журнала:
2024,
Номер
16(21), С. 3095 - 3095
Опубликована: Ноя. 1, 2024
In
this
study,
we
designed
a
molecularly
imprinted
polymers-dispersive
solid-phase
extraction-high-performance
liquid
chromatography
(MIPs-DSPE-HPLC)
method,
as
simple
and
efficient
platform
for
the
sensitive
detection
of
two
sulfonamide
antibiotics
(SAs)
sulfamethoxine
(SMM)
sulfamethoxazole
(SMZ)
in
environmental
water
samples.
Using
SMM
SMZ
templates,
methacrylic
acid
functional
monomer,
ethylene
glycol
dimethacrylate
crosslinking
agent,
azodiisobutyronitrile
catalyst,
dual-template
polymers
(dt-MIPs)
were
successfully
synthesized
via
surface
imprinting
technology
multi-template
strategy.
The
adsorption
properties
prepared
MIPs
characterized,
capacities
towards
27.35
mg/g
30.92
mg/g,
respectively.
limits
method
three
samples
range
0.23–1.74
μg/L,
recoveries
between
82.7
110.3%,
with
relative
standard
deviations
less
than
5.93%.
construction
process
MIPs-DSPE-HPLC
is
straightforward,
exhibits
high
sensitivity
selectivity,
thus
provides
versatile
quantification
SAs
complex
matrices.
Язык: Английский