I believe I can fly… but in polluted air, why? Bird feathers as an example of environmental contaminant monitoring
The Science of The Total Environment,
Journal Year:
2025,
Volume and Issue:
972, P. 179033 - 179033
Published: March 14, 2025
Language: Английский
Evaluation of Bioactive Compounds and Chemical Elements in Herbs: Effectiveness of Choline Chloride-Based Deep Eutectic Solvents in Ultrasound-Assisted Extraction
Molecules,
Journal Year:
2025,
Volume and Issue:
30(2), P. 368 - 368
Published: Jan. 17, 2025
In
this
study,
the
effectiveness
of
three
choline
chloride
(ChCl)-based
deep
eutectic
solvents
(DESs)
formed
using
malonic
acid
(MalA),
glycerol
(Gly),
and
glucose
(Glu)
as
hydrogen
bond
donors
two
conventional
(50%
methanol
50%
ethanol)
for
ultrasonic-assisted
extraction
(UAE)
antioxidant
compounds
from
four
herbs
(chamomile,
lemon
balm,
nettle,
spearmint)
were
estimated.
The
capacity
(AC)
obtained
herb
extracts
was
determined
by
modified
2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonic
acid)
(ABTS),
2,2-diphenyl-1-picrylhydrazyl
(DPPH),
cupric
reducing
(CUPRAC)
methods.
Profiles
phenolic
acids,
flavonoid
aglycones,
glycosides
in
green
quantitatively
analyzed
ultra-performance
liquid
chromatography
(UPLC).
Among
prepared
DESs,
highest
potential
total
contents
achieved
ChCl:MalA
(1:1).
Unexpectedly,
selected
extracted
significantly
lower
amounts
antioxidants
investigated
than
alcohols.
Additionally,
macroelements
(K,
Na,
Ca,
Mg),
micronutrients
(Mn,
Zn,
Fe,
Cu),
a
toxic
element
(Cd)
inductively
coupled
plasma-mass
spectrometry
(ICP-MS).
Determining
compositions
elements
is
essential
understanding
their
nutritive
importance
when
applied
food,
cosmetic,
pharmaceutical
industries.
Language: Английский
Mineral Composition of Fifteen Species of Asteraceae Family Growing in the Republic of Moldova Using Neutron Activation Analysis
Agronomy,
Journal Year:
2024,
Volume and Issue:
14(10), P. 2387 - 2387
Published: Oct. 16, 2024
Members
of
Asteraceae
family
have
properties
enabling
their
application
for
medical
purposes.
The
major-
and
microelement
content
in
15
medicinal
species
the
growing
National
Botanical
Garden,
Republic
Moldova
was
determined
by
instrumental
neutron
activation
analysis.
A
total
31
chemical
elements,
Na,
Mg,
Al,
Cl,
K,
Ca,
Sc,
V,
Cr,
Mn,
Fe,
Co,
Ni,
Zn,
As,
Se,
Br,
Rb,
Sr,
Mo,
Sb,
Cs,
Ba,
La,
Ce,
Sm,
Tb,
Hf,
Ta,
Th
U,
were
identified
herbal
samples.
Potassium
found
to
be
most
abundant
major
element;
its
plants
ranged
from
20,700
mg/kg
Artemisia
lerchiana
58,000
Matricaria
recutita.
other
elements
existed
following
ranges:
Ca
4700
14,200
Mg
1710
3870
mg/kg.
maximum
K
analyzed
higher
compared
data
presented
literature.
Among
essential
microelements
Fe
(83–910
mg/kg),
Mn
(23–150
mg/kg)
Zn
(27–76
mg/kg).
daily
intake
metal
health
risk
index
selected
(As,
Zn)
calculated.
Health
indexes
obtained
V
Co
Calendula
officinalis,
Tanacetum
balsamita,
Achillea
clypeolata,
balchanorum,
lerchiana,
Helichrysum
arenarium,
principal
component
analysis
showed
three
associations
which
can
defined
as
physiological,
geological
anthropogenic
sources
elements.
Language: Английский
Validation of Wavelength-Dispersive X-Ray Fluorescence Technique for Rapid Screening Iron and Zinc Concentration in Rice Seed
Trends in Sciences,
Journal Year:
2024,
Volume and Issue:
22(2)
Published: Dec. 28, 2024
This
study
focuses
on
the
validation
of
a
wavelength
dispersive
X-ray
fluorescence
(WD-XRF)
spectrometer
for
rapid
determination
iron
(Fe)
and
zinc
(Zn)
concentrations
in
certified
reference
materials
(CRMs).
Five
CRMs
were
used
to
establish
calibration
curves.
The
results
analyzed
terms
accuracy,
precision,
repeatability
linearity
assess
performance
WD-XRF
method.
Accuracy
was
evaluated
by
comparing
measured
values
values,
with
relative
accuracy
calculated
each
sample.
Precision
determined
through
repeatability,
where
samples
at
least
7
replicates
across
different
days,
standard
deviation
(RSD)
calculated.
Linearity
assessed
plotting
intensities
against
concentrations,
correlation
coefficient
(R2)
close
1,
indicating
strong
linear
relationship.
Additionally,
method
demonstrated
high
low
RSD
multiple
measurements.
concluded
that
is
reliable
analysis
elemental
composition,
providing
precision
Fe
Zn
can
be
applied
as
valuable
non-destructive
various
agricultural
food-related
applications.
HIGHLIGHTS
effectiveness
confirm
its
reliability
determining
specifically
(Zn),
plant-based
2
known
test
determine
analytical
WD-XRF.
revealed
R-square
being
greater
than
0.95
recovery
percentage
range
from
98.75
-
109.66
concentration.
rice
seeds.
GRAPHICAL
ABSTRACT
Language: Английский