Molecules,
Journal Year:
2024,
Volume and Issue:
29(22), P. 5324 - 5324
Published: Nov. 12, 2024
Today,
there
is
an
increasing
concern
and
effort
for
protection,
conservation,
restoration
of
cultural
heritage
materials.
Non-invasive
analytical
methodologies
such
as
Raman
spectroscopy
offers
various
advantages
high
speed,
robust
identification,
low
cost,
in-site
analysis.
Previous
contributions
highlighted
the
potential
combined
with
multivariate
statistics
identification
quality
evaluation
materials
paints,
fiber,
dyes,
woods,
stones,
inks,
textile
Especially,
application
chemometrics
algorithms
opens
new
horizons
scientists
inspectors.
In
conclusion,
paper
provided
overview
state-of-the-art
uses
statistically
equipped
methods
art
illustrations
from
previous
research
studies.
Molecules,
Journal Year:
2023,
Volume and Issue:
28(24), P. 8156 - 8156
Published: Dec. 18, 2023
Two
isostructural
lanthanide
complexes
were
synthesized
by
solvent
evaporation
with
3-dimethylaminobenzoic
acid
and
5,5'-dimethyl-2,2'-bipyridine
as
ligands.
The
general
formula
of
the
structure
is
a
[Ln(3-N,N-DMBA)3(5,5'-DM-2,2'-bipy)]2·2(3-N,N-DMHBA),
Ln
=
(Gd(1),
Tb(2)),
3-N,N-DMBA
3-Dimethylamino
benzoate,
5,5'-DM-2,2'-bipy
5,5'-dimethyl-2,2'
bipyridine.
Both
exhibited
dimeric
structures
based
on
X-ray
diffraction
analysis.
At
same
time,
infrared
spectroscopy
Raman
used
to
measure
spectra
complex.
A
thermogravimetric
experiment
was
performed
investigate
thermal
stability
decomposition
mechanism
complexes.
Measurements
low-temperature
heat
capacity
obtained
within
temperature
range
1.9
300
K.
thermodynamic
function
calculated
fitting.
In
addition,
fluorescence
complex
2
studied
lifetime
values
determined,
energy
transfer
elucidated.
Heliyon,
Journal Year:
2024,
Volume and Issue:
10(11), P. e31467 - e31467
Published: May 18, 2024
Currently,
there
is
fierce
competition
in
the
cocoa
industry
to
develop
products
that
possess
distinctive
sensory
characteristics
and
flavours.
This
because
its
derivatives
provide
numerous
health
functional
advantages,
which
essential
their
economics.
The
fatty
acid
triglyceride
composition
of
determines
quality.
review
emphasises
necessity
developing
precise,
adaptable
analytical
techniques
identify
quantify
butter
derived
products,
from
beans
chocolate
bars.
Key
chromatographic
spectroscopic
play
crucial
roles
understanding
fundamental
principles
underlying
production
with
desirable
significantly
impacts
sustainability,
traceability,
authenticity
while
also
supporting
battle
against
adulteration.
ACS Earth and Space Chemistry,
Journal Year:
2024,
Volume and Issue:
8(8), P. 1549 - 1559
Published: July 31, 2024
Marine
systems
are
incredibly
chemically
complex.
An
understanding
of
the
chemical
compounds
that
make
up
diversity
in
marine
samples
is
critical
to
ecological
and
ocean
health
metrics.
Using
Raman
spectroscopy
tandem
with
machine
learning
combines
a
low-cost,
highly
transportable
analytical
technique
powerful
rapid
computational
approach
can
aid
analysis.
Here,
we
use
identify
mM
concentrations
three
relevant
distinct
classes
complex
aqueous
matrix.
Saccharides
represented
by
glucose,
fatty
acids
butyric
acid,
proteins
an
amino
acid
proxy
through
glycine.
Eight
classical
models
(gradient
boosted
regressors,
random
forests,
histogram
gradient
decision
trees,
k-nearest
neighbors,
support
vector
regression,
multi-layer
perceptrons,
multivariate
linear
regression)
were
tested
for
their
accuracy
identifying
glycine,
samples,
which
benchmarked
mass
spectrometric
method.
Support
regression
was
able
best
all
glucose.
Butyric
similarly
well
described
regression.
The
methodology
has
potential
significantly
advance
field
analysis
samples.
Molecules,
Journal Year:
2024,
Volume and Issue:
29(22), P. 5324 - 5324
Published: Nov. 12, 2024
Today,
there
is
an
increasing
concern
and
effort
for
protection,
conservation,
restoration
of
cultural
heritage
materials.
Non-invasive
analytical
methodologies
such
as
Raman
spectroscopy
offers
various
advantages
high
speed,
robust
identification,
low
cost,
in-site
analysis.
Previous
contributions
highlighted
the
potential
combined
with
multivariate
statistics
identification
quality
evaluation
materials
paints,
fiber,
dyes,
woods,
stones,
inks,
textile
Especially,
application
chemometrics
algorithms
opens
new
horizons
scientists
inspectors.
In
conclusion,
paper
provided
overview
state-of-the-art
uses
statistically
equipped
methods
art
illustrations
from
previous
research
studies.
