An overview of the enantioselective determination of musk fragrances in environmental samples
Comprehensive analytical chemistry,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 1, 2025
Language: Английский
Advances in the application of covalent organic frameworks as solid phase microextraction coating materials for environmental organic pollutant detection
Yingying Wang,
No information about this author
Lan He,
No information about this author
Weijie Wei
No information about this author
et al.
Chemical Engineering Science,
Journal Year:
2025,
Volume and Issue:
unknown, P. 121758 - 121758
Published: April 1, 2025
Language: Английский
Comprehensive screening of the contaminants in feeds and gilthead sea Bream (Sparus aurata) fillets by GC and LC coupled to HRMS technique
Microchemical Journal,
Journal Year:
2025,
Volume and Issue:
unknown, P. 113854 - 113854
Published: May 1, 2025
Language: Английский
AQUA-GAPS/MONET-Derived Concentrations and Trends of PAHs and Polycyclic Musks across Global Waters
Environmental Science & Technology,
Journal Year:
2024,
Volume and Issue:
unknown
Published: July 20, 2024
Polycyclic
aromatic
hydrocarbons
(PAHs),
released
from
petrogenic,
pyrogenic
or
diagenetic
sources
(degradation
of
wood
materials),
are
global
concern
due
to
their
adverse
effects,
and
potential
for
long-range
transport.
While
dissolved
PAHs
have
been
frequently
reported
in
the
literature,
there
has
no
consistent
approach
sampling
across
water
bodies.
Passive
samplers
AQUA/GAPS-MONET
initiative
were
deployed
at
46
sites
(28
marine
18
freshwater),
analyzed
28
six
polycyclic
musks
(PCMs)
centrally.
Freely
PAH
concentrations
dominated
by
phenanthrene
(mean
concentration
1500
pg
L–1;
median
530
L–1)
other
low
molecular
weight
compounds.
Greatest
phenanthrene,
fluoranthene,
pyrene
typically
same
sites,
mostly
Europe
North
America.
Of
PCMs,
only
galaxolide
(72%
samples)
tonalide
(61%)
regularly
detected,
significantly
cross-correlated.
Benchmarking
relative
penta-
hexachlorobenzene
confirmed
that
most
remote
(Arctic,
Antarctic,
mountain
lakes)
displayed
below
average
concentrations.
Concentrations
11
PAHs,
positively
correlated
(P
<
0.05)
with
population
density
within
a
radius
5
km
site.
Characteristic
ratios
gave
conflicting
results,
likely
reflecting
multiple
postemission
changes.
Language: Английский
Wide Distribution of Synthetic Musks in Estuarine Sediment Along the Southeastern Chinese Coast: Exploring the Influencing Factors
Liang Wu,
No information about this author
Xiangpu Zhang,
No information about this author
Bo Peng
No information about this author
et al.
Published: Jan. 1, 2024
Synthetic
musks
(SMs)
are
a
class
of
commercial
chemicals
with
massive
consumption,
but
data
on
their
occurrence
and
geographical
distribution
in
estuarine
environment
large-scale
scarce.
Herein,
sediment
samples
from
18
main
estuaries
along
the
southeastern
Chinese
coast
were
collected,
including
annual
two
river
outlets
Yangtze
River
Delta
over
13-year
period.
The
detection
frequency
SMs
was
98%,
concentrations
ranged
<
reporting
limit
to
28
ng
g-1
(mean:
3.5
g-1;
median:
1.8
g-1).
From
2007
2019,
ubiquitous
all
taken
outlets,
however,
no
obvious
temporal
trend
observed.
Spatially,
significant
correlations
found
between
indicators
local
human
activity,
such
as
population
density
gross
domestic
product
per
unit
area.
Wet
deposition
PM2.5
serves
an
important
potential
source
sediment.
assessed
risk
quotients
dominant
SMs,
galaxolide
tonalide,
indicated
that
ecological
associated
warrants
attention
situated
near
densely
populated
regions.
To
best
our
knowledge,
this
is
first
study
pinpoint
wide
determine
influencing
factors
sediments
large
scale.
More
studies
needed
identify
sources
fate
coastal
ecosystems.
Language: Английский
Revealing the distribution of synthetic musks in Chinese estuarine sediments driven by natural and anthropogenic factors
Environmental Pollution,
Journal Year:
2024,
Volume and Issue:
363, P. 125202 - 125202
Published: Oct. 28, 2024
Language: Английский
Ultrasound-Assisted Remote Benzylic C(sp3)–H Alkylation of N-Fluoroamides with Enol Silanes
The Journal of Organic Chemistry,
Journal Year:
2024,
Volume and Issue:
89(22), P. 16473 - 16484
Published: Nov. 7, 2024
We
have
developed
an
ultrasound-assisted
remote
benzylic
C(sp3)–H
alkylation
of
N-fluorobenzamides
with
enol
silanes;
a
series
β-aryl
substituted
propiophenones
was
generated
in
good
to
high
yields.
This
reaction
represents
formal
C(sp3)–C(sp3)
coupling
and
features
simplicity,
efficiency,
wide
substrate
scope
multiple-step
sequential
process,
which
involves
N–F
homolysis,
1,5-hydrogen
atom
transfer,
radical
addition,
oxidation
by
copper(II)
salt,
removal
the
trimethylsilyl
group.
Also,
DFT
theoretical
calculations
Marcus
theory
were
employed
consolidate
proposed
mechanism.
Language: Английский
Comparison of Sample Preparation and Detection Methods for the Quantification of Synthetic Musk Compounds (SMCs) in Carp Fish Samples
Molecules,
Journal Year:
2024,
Volume and Issue:
29(22), P. 5444 - 5444
Published: Nov. 19, 2024
This
study
deals
with
the
separation
and
detection
methods
for
12
synthetic
musk
compounds
(SMCs),
which
are
some
of
emerging
contaminants
in
fish
samples,
widely
present
environmental
media,
can
be
considered
serious
risks
due
to
their
harmful
effects.
For
co-extracted
substances
target
SMCs
samples
after
ultrasonic
extraction,
four
solid-phase
extraction
(SPE)
sorbents
were
investigated.
The
recoveries
from
10
mL
eluent,
as
optimized
by
elution
profile,
within
acceptable
range
80-120%
all
SPE
types,
it
was
found
that
nitro
polycyclic
separated
more
clearly
Florisil
than
others
(Aminopropyl,
Alumina-N,
PSA).
Furthermore,
results
measuring
matrix
effects
each
through
spiking
experiments
showed
superior.
comparison
a
gas
chromatograph-single
quadrupole
mass
spectrometer
(GC-SQ/MS)
selected
ion
monitoring
(SIM)
mode
GC-triple
(GC-QqQ-MS/MS)
multiple
reaction
(MRM)
modes
regarding
method
limits
(MDLs)
on
average
ten
times
lower
when
GC-QqQ-MS/MS
MRM
used.
differences
between
two
provide
essential
information
selecting
an
analytical
related
research
fields
require
appropriate
levels,
such
risk
assessment
or
pollution
control.
Language: Английский
Binding Mechanism of Nitro Musks to Human Lactoferrin: Multispectral Approach, Docking and Molecular Dynamics Simulation
Zemeng Li,
No information about this author
Mengjie Shi,
No information about this author
Hongyan Liu
No information about this author
et al.
Chemistry & Biodiversity,
Journal Year:
2024,
Volume and Issue:
21(12)
Published: Aug. 28, 2024
Abstract
Nitro
musks
are
highly
bioaccumulative
and
potentially
carcinogenic,
commonly
used
as
additives
in
fabric
softeners,
detergents,
other
household
products.
Furthermore,
these
substances
have
been
detected
breast
milk
human
adipose
tissue,
posing
a
risk
of
direct
exposure
to
pregnant
women
infants.
Human
lactoferrin
(HLF)
is
abundant
colostrum,
plays
an
important
role
the
non‐specific
immune
system
body.
In
this
study,
mechanisms
action
two
nitro
musk
compounds,
typical
examples
synthetic
musks,
with
HLF
were
investigated
using
molecular
docking,
dynamics
simulation
multispectral
methods.
The
fluorescence
findings
demonstrated
that
quenched
intrinsic
through
static
quenching.
Thermodynamic
analysis
binding
parameters
suggested
hydrophobic
interactions
acted
synergistically
formation
complex.
Moreover,
analyses
utilizing
techniques,
such
Fourier
transform
infrared
(FTIR)
spectroscopy,
validated
microenvironment
structure
altered
presence
musks.
Finally,
docking
simulations
employed
explore
specific
mode
assess
stability
These
may
provide
reference
for
assessing
health
risks
Language: Английский