SSRN Electronic Journal,
Год журнала:
2021,
Номер
unknown
Опубликована: Янв. 1, 2021
Taihu
Lake
is
the
most
important
drinking
water
source
of
major
cities
in
Yangtze
River
Delta.
The
pollution
endocrine
disruptors
(EDCs)in
has
been
increasing
recently,
accurate
determination
an
guide
for
predicting
its
health
risks
and
developing
appropriate
controls.
Monitoring
organic
pollutants
using
diffusive
gradient
thin
film
technique
(DGT)
attracted
much
attention
due
to
more
accuracy
convenience
than
grab
sampling
methods.
In
this
study,
a
novel
cyclodextrin
polymer
(CDP)
synthesized
by
simple
green
method
was
taken
as
adsorbent
binding
gel.
Four
endocrine-disrupting
chemicals
(EDCs),
bisphenol
A
(BPA),
17α-ethinylestradiol
(EE2),
17β-estradiol
(E2),
estriol
(E3),
were
models
determine
diffusion
coefficients
(4.68×10-6,
3.38×10-6,
3.34×10-6
4.31×10-6
cm2/s)
test
performance
DGT,
such
adsorption
capacity
deployment
time
(1-5
day).
assembled
CDP-DGT
adopted
four
EDCs
simulated
environment
(3-9
pH,
0.001-0.5M
ionic
strength
(IS),
dissolved
matter
(DOM)
0-20mg/L).
ability
verified
Jiuxiang
carried
out
large-scale
field
application
situ
basin.
results
show
that
total
concentration
range
estradiol
equivalent
concentrations
(EEQ)
main
rivers
are
2.78
ng/L
11.08
2.62
10.91
ng/L,
respectively.
risk
quotients
(RQs)
all
sites
region
greater
1,
indicating
pose
serious
threat
aquatic
organisms
area.
Therefore,
monitoring
basin
should
be
further
strengthened.
Water,
Год журнала:
2022,
Номер
14(21), С. 3478 - 3478
Опубликована: Окт. 31, 2022
Wastewater-based
epidemiology
(WBE)
is
a
surveillance
approach
used
to
examine
chemical
and
biological
targets
within
population.
Historically,
the
most
common
approaches
wastewater
sampling
include
grab
composite
sampling,
which
can
be
performed
manually
or
using
an
automated
sampler.
However,
there
are
inherent
flaws
with
these
methods.
They
miss
analytes
due
fluctuation
events
in
have
high
cost
labour
implications.
Alternately,
passive
technique
that
involves
medium
stay
aqueous
matrix
for
extended
periods
of
time
provide
greater
temporal
coverage.
This
literature
review
examines
current
devices
general
contaminants
they
targeting.
The
polar
organic
integrated
sampler,
Chemcatcher®,
diffusive
gradients
thin
films
sampler
semipermeable
membrane
were
among
frequently
deployed
samplers
matrices.
Chemical
pharmaceuticals
identified
as
targets.
Passive
has
received
recent
attention
SARS-CoV-2;
however,
overall,
lack
critical
knowledge
relating
deployment
associated
variability
Notwithstanding,
ability
capture
make
it
useful
pathogens
community.
Future
research
should
focus
on
addressing
gaps
optimise
use
devices.
Critical Reviews in Analytical Chemistry,
Год журнала:
2022,
Номер
54(6), С. 1758 - 1774
Опубликована: Окт. 20, 2022
The
membranes
in
polar
organic
chemical
integrative
samplers
(POCIS)
enclose
the
receiving
sorbent
and
protect
it
from
coming
into
direct
contact
with
environmental
matrix.
They
have
a
crucial
role
extending
kinetic
regime
of
contaminant
uptake,
by
slowing
down
their
diffusion
between
water
phase
phase.
drive
to
improve
passive
sampling
requires
better
design
enhanced
performances.
In
this
review,
preparation
standard
polyethersulfone
(PES)
for
POCIS
is
presented,
as
well
methods
evaluate
composition,
morphology,
structure,
performance.
Generally,
only
supplier-related
morphological
structural
data
are
provided,
such
membrane
type,
thickness,
surface
area,
pore
diameter.
issues
related
use
PES
applications
exposed.
Finally,
alternative
also
discussed,
although
no
has
yet
been
developed.
This
review
highlights
urge
more
characterization
details
comprehension
mechanisms
which
underlay
behavior
performance,
selection
optimize
sampler
development.
ACS Applied Bio Materials,
Год журнала:
2022,
Номер
5(11), С. 5210 - 5217
Опубликована: Окт. 19, 2022
To
date,
an
identification
protocol
for
endocrine
disruptors
that
bind
to
the
thyroid
hormone
receptor
(TR)
has
not
been
established.
A
method
screening
and
identifying
TR-binding
substances
is
highly
required
due
existence
of
unknown
from
environment.
Here,
we
conceived
a
chromatographic
using
molecularly
imprinted
polymer
(MIP)
create
novel
disruptors.
receptor-imitating
MIP
was
prepared
N-acetylthyroxine
(AcetylT4)
4-vinylpyridine
as
pseudo-template
functional
monomer,
respectively,
based
on
existing
molecular
recognition
mechanism
TR.
The
provided
ability
all
were
employed
in
this
study.
MIPs
packed
into
high-performance
liquid
chromatography
column
simultaneous
analysis
non-binding
substances.
former
strongly
retained,
while
latter
not.
presence
or
absence
TR-binding/non-binding
activity
resulted
successful
dichotomous
separation.
Additionally,
surface
imprinting
technique
applied
improve
separation
performance
packing
material.
MIP-coated
uniformly
sized
silica-based
particles
5
μm
successfully
prepared,
silica
enabled
more
efficient
