Analytical and Bioanalytical Chemistry,
Год журнала:
2023,
Номер
415(15), С. 2975 - 2987
Опубликована: Март 20, 2023
One
of
the
biggest
issues
in
microplastic
(MP,
plastic
items
<5
mm)
research
is
lack
standardisation
and
harmonisation
all
fields,
reaching
from
sampling
methodology
to
sample
purification,
analytical
methods
data
analysis.
This
hampers
comparability
as
well
reproducibility
among
studies.
Concerning
chemical
analysis
MPs,
Fourier-transform
infrared
(FTIR)
spectroscocopy
one
most
powerful
tools.
Here,
focal
plane
array
(FPA)
based
micro-FTIR
(µFTIR)
imaging
allows
for
rapid
measurement
identification
without
manual
preselection
putative
MP
therefore
enables
large
throughputs
with
high
spatial
resolution.
The
resulting
huge
datasets
necessitate
automated
algorithms
a
reasonable
time
frame.
Although
solutions
are
available,
little
known
about
or
level
reliability
their
output.
For
first
time,
within
our
study,
we
compare
two
well-established
frequently
applied
regard
results
abundance,
polymer
composition
size
distributions
(11-500
µm)
derived
selected
environmental
water
samples:
(a)
siMPle
tool
(systematic
MicroPlastics
environment)
combination
MPAPP
(MicroPlastic
Automated
Particle/fibre
Pipeline)
(b)
BPF
(Bayreuth
Particle
Finder).
comparison
show
an
overall
good
accordance
but
also
indicate
discrepancies
concerning
certain
types/clusters
smallest
classes.
Our
study
further
demonstrates
that
detailed
essential
prerequisite
better
data.
Environment International,
Год журнала:
2022,
Номер
163, С. 107199 - 107199
Опубликована: Март 24, 2022
Plastic
particles
are
ubiquitous
pollutants
in
the
living
environment
and
food
chain
but
no
study
to
date
has
reported
on
internal
exposure
of
plastic
human
blood.
This
study's
goal
was
develop
a
robust
sensitive
sampling
analytical
method
with
double
shot
pyrolysis
-
gas
chromatography/mass
spectrometry
apply
it
measure
≥700
nm
whole
blood
from
22
healthy
volunteers.
Four
high
production
volume
polymers
applied
were
identified
quantified
for
first
time
Polyethylene
terephthalate,
polyethylene
styrene
(a
sum
parameter
polystyrene,
expanded
acetonitrile
butadiene
etc.)
most
widely
encountered,
followed
by
poly(methyl
methacrylate).
Polypropylene
analysed
values
under
limits
quantification.
In
this
small
set
donors,
mean
quantifiable
concentration
1.6
µg/ml,
showing
measurement
mass
polymeric
component
pioneering
biomonitoring
demonstrated
that
bioavailable
uptake
into
bloodstream.
An
understanding
these
substances
humans
associated
hazard
such
is
needed
determine
whether
or
not
particle
public
health
risk.
Chemical Reviews,
Год журнала:
2021,
Номер
121(19), С. 11886 - 11936
Опубликована: Авг. 26, 2021
Microplastics
and
nanoplastics
have
become
emerging
particulate
anthropogenic
pollutants
rapidly
turned
into
a
field
of
growing
scientific
public
interest.
These
tiny
plastic
particles
are
found
in
the
environment
all
around
globe
as
well
drinking
water
food,
raising
concerns
about
their
impacts
on
human
health.
To
adequately
address
these
issues,
reliable
information
ambient
concentrations
microplastics
is
needed.
However,
micro-
nanoplastic
extremely
complex
diverse
terms
size,
shape,
density,
polymer
type,
surface
properties,
etc.
While
particle
different
media
can
vary
by
up
to
10
orders
magnitude,
analysis
such
samples
may
resemble
searching
for
needle
haystack.
This
highlights
critical
importance
appropriate
methods
chemical
identification,
quantification,
characterization
nanoplastics.
The
present
article
reviews
advanced
representative
mass-based
particle-based
microplastics,
with
focus
sensitivity
lower-size
limit
detection.
advantages
limitations
methods,
complementarity
comprehensive
discussed.
A
special
attention
paid
approaches
Finally,
an
outlook
establishing
harmonized
standardized
analyze
challenging
contaminants
presented,
perspectives
within
beyond
this
research
Proceedings of the National Academy of Sciences,
Год журнала:
2024,
Номер
121(3)
Опубликована: Янв. 8, 2024
Plastics
are
now
omnipresent
in
our
daily
lives.
The
existence
of
microplastics
(1
µm
to
5
mm
length)
and
possibly
even
nanoplastics
(<1
μm)
has
recently
raised
health
concerns.
In
particular,
believed
be
more
toxic
since
their
smaller
size
renders
them
much
amenable,
compared
microplastics,
enter
the
human
body.
However,
detecting
imposes
tremendous
analytical
challenges
on
both
nano-level
sensitivity
plastic-identifying
specificity,
leading
a
knowledge
gap
this
mysterious
nanoworld
surrounding
us.
To
address
these
challenges,
we
developed
hyperspectral
stimulated
Raman
scattering
(SRS)
imaging
platform
with
an
automated
plastic
identification
algorithm
that
allows
micro-nano
analysis
at
single-particle
level
high
chemical
specificity
throughput.
We
first
validated
enhancement
narrow
band
SRS
enable
high-speed
single
nanoplastic
detection
below
100
nm.
then
devised
data-driven
spectral
matching
imposed
by
sensitive
narrow-band
achieve
robust
determination
common
polymers.
With
established
technique,
studied
plastics
from
bottled
water
as
model
system.
successfully
detected
identified
major
types.
Micro-nano
concentrations
were
estimated
about
2.4
±
1.3
×
10
TrAC Trends in Analytical Chemistry,
Год журнала:
2022,
Номер
159, С. 116670 - 116670
Опубликована: Май 10, 2022
In
recent
years,
the
presence
of
microplastics
(MPs)
and
nanoplastics
(NPs)
has
been
assessed
in
several
environmental
matrices,
including
marine
environment
agricultural
soil,
suggesting
those
pollutants
are
likely
to
enter
food
web.
However,
there
is
still
a
severe
lack
information
about
occurrence
plastic
particles
our
food,
partially
due
multidimensionality
data
necessary
fully
describe
MP
contamination
consequent
difficulty
validating
analytical
methods.
this
review,
consisting
two
parts,
preliminary
results
MPs
water,
beverages
summarized
(Part
I)
approaches
for
characterization
micro-
nano-sized
reported
discussed
II).
The
gathered
manuscript
highlights
need
more
comprehensive
knowledge
MP/NP
along
chain
order
assess
safety
risk
related
contaminants
implement
strategies
their
monitoring
products
intended
human
consumption.
Therefore,
an
outlook
field
towards
coherent,
consistent,
policy-relevant
collection
standardization
included
review.
Environment International,
Год журнала:
2023,
Номер
179, С. 108150 - 108150
Опубликована: Авг. 14, 2023
Microplastics
(MP)
are
plastic
particles
with
dimension
up
to
5
mm.
Due
their
persistence,
global
spread
across
different
ecosystems
and
potential
human
health
effects,
they
have
gained
increasing
attention
during
the
last
decade.
However,
extent
of
exposure
MP
through
pathways
intake
not
been
elucidated.The
objective
this
review
is
provide
an
overview
on
inhalation,
ingestion,
dermal
contact
considering
data
from
open
bibliography
in
air,
dust,
food,
water
drinks.A
bibliographic
search
Scopus
PubMed
was
conducted
using
keywords
outdoor
indoor
food
including
beverages
(n
=
521).
Articles
were
sorted
by
title
abstract
213),
only
studies
reporting
identification
quantification
techniques
further
considered
168).
A
total
115
articles
that
include
quality
assurance
control
(QA/QC)
procedures
finally
discussed
present
review.
Based
concentration
available
literature,
we
estimated
inhaled
dose
(ID),
dust
(DI),
daily
(EDI)
via
beverages.
Finally,
(TDI)
both
inhalation
ingestion
routes
provided
for
adults,
infants
newborns.The
concentrations
according
bibliography.
Human
air
food/drinks
consumption
revealed
drinking
waters
main
sources
MP.This
study
reveals
humans
constantly
exposed
MP,
environment
ingest
decisively
contribute
intake.
Additionally,
highlight
newborns
high
needed
evaluate
presence
risk
vulnerable
age-population.
Environmental Science & Technology,
Год журнала:
2022,
Номер
56(14), С. 9999 - 10009
Опубликована: Июнь 24, 2022
Here,
we
evaluate
for
the
first
time
performances
of
newly
developed
laser
direct
infrared
(LDIR)
technique
and
propose
an
optimization
initial
protocol
marine
microplastics
(MPs)
analysis.
Our
results
show
that
8
μm
porosity
polycarbonate
filter
placed
on
a
Kevley
slide
enables
preconcentration
efficient
quantification
MPs,
as
well
polymer
size
determination
reference
plastic
pellets
polypropylene
(PP),
polyethylene
(PE),
polystyrene
(PS),
polyvinyl
chloride
(PVC),
terephthalate
(PET),
with
recoveries
ranging
from
80–100%
negligible
blank
values
particle
sizes
200
to
500
μm.
A
spiked
experiment
using
seawater,
sediment,
mussels,
fish
stomach
samples
showed
method
responded
linearly
significant
slopes
(R2
0.93–1.0;
p
<
0.001,
0.01).
Overall,
11
types
were
identified
limited
handling
analysis
ca.
3
h
most
6
complex
samples.
Application
this
Mediterranean
(seawater,
stomachs
mussels)
indicated
MP
concentrations
distribution
consistent
literature.
high
predominance
PVC
(sediment,
stomachs)
PE
PP
was
observed
in
analyzed
