Sulfamethoxazole
is
an
antibiotic
that
among
the
drugs
most
frequently
found
in
waters
around
world
because
of
its
habitual
consumption
and
high
chemical
stability
prevents
it
from
being
eliminated
environment.
In
this
study,
electroanalytical
methodology
based
on
differential
pulse
voltammetry
developed
for
analysis
sulfamethoxazole
at
trace
levels
water.
After
optimization
instrumental
parameters
a
linear
range
6.59
to
96.27
µM
was
with
limits
detection
quantification
1.98
µM,
respectively,
RSD
below
6%.
Moreover,
several
validation
studies
involving
different
pH
values,
water
samples
instrumentation
were
performed
order
ensure
robustness
method.
For
purpose,
peak
area
used
as
quantitative
variable
since
not
affected
by
medium
even
if
there
any
modification
parameter
during
experiments.
Furthermore,
effect
other
drug
such
trimethoprim
analytical
signal
also
evaluated.
Once
method
tested
quality
control
Soltrim®,
obtaining
recoveries
between
98
102%.
Lastly,
voltammetric
applied
situ
monitoring
sulfamethoxazole's
removal
samples,
specifically
anodic
oxidation
electro-Fenton
treatments.
While
former
coupled
adsorption
process,
latter
carried
out
iron
sources
including
commercial
medicines
can
be
wastewater.
Although
proved
faster
considering
calculated
kobs,
turned
more
efficient
eliminating
drug,
achieving
disappearance
only
30
min
treatment.
Antibiotics,
Journal Year:
2024,
Volume and Issue:
13(2), P. 174 - 174
Published: Feb. 9, 2024
The
presence
of
antibiotics
in
the
environmental
matrix
has
raised
concerns
regarding
their
risk
to
aquatic
ecosystem
and
human
health.
Surface
water,
such
as
rivers,
plays
a
pivotal
role
dispersion
transport
antibiotic
residues.
effective
monitoring
these
contaminants
requires
investigating
sources
distribution.
While
numerous
studies
have
been
conducted
globally
comprehend
emergence,
prevalence,
management
substances,
investigation
therapeutic
Africa
remains
notably
underrepresented.
Consequently,
data
emerging
African
environments
are
scarce,
warranting
further
exploration.
This
study
aims
investigate
occurrence
four
specific
antibiotics-tetracycline,
sulfathiazole,
penicillin
g,
erythromycin-across
different
seasons
Msunduzi
River,
Eastern
South
Africa.
Three
sampling
campaigns
were
during
spring,
autumn,
winter
assess
river.
Analyte
extraction
from
water
samples
was
achieved
through
solid-phase
extraction,
quantification
performed
using
liquid
chromatography-mass
spectrometry.
findings
reveal
notable
concentrations
river
at
locations
closest
wastewater
treatment
discharge
point.
Among
studied,
tetracycline
(158.42-1290.43
ng/L)
sulfathiazole
(112.68-1151.25
most
frequently
detected
compounds
across
majority
sites
tributaries
Erythromycin
less
surface
effluent
but
found
be
algal
species
within
effluents
represent
significant
source
contamination
river,
industrial
areas
informal
settlements
identified
continuous
pollution.
Thus,
it
is
imperative
implement
appropriate
protocols
mitigate
pollution
environment.
South African Journal of Chemistry,
Journal Year:
2024,
Volume and Issue:
78, P. 7 - 14
Published: Jan. 1, 2024
ABSTRACT
The
occurrence
of
pharmaceuticals
in
various
wastewater
treatment
plants
(WWTPs)
and
their
discharge
into
the
surface
water
are
existing
global
challenges.
However,
such
challenges
more
detrimental
developing
countries
due
to
aging
infrastructure
its
vandalism
influenced
by
poverty,
resulting
illegal
breakdown
WWTPs.
This
study
investigated
presence
efavirenz,
ibuprofen,
naproxen,
sulfamethoxazole,
trimethoprim
Ultrasound-assisted
extraction
(UAE)
followed
solid-phase
(SPE)
was
used
extract
these
sludge
samples,
with
extracted
only
latter.
analysis
using
a
high-performance
liquid
chromatography-photo-diode
array
detection
system.
Recoveries
found
after
spiking
samples
analytes
at
different
concentrations
ranged
from
56
117%.
An
antibiotic,
among
prominent
drugs
untreated
concentration
reaching
77
ug
L-1.
All
were
detected
naproxen
having
highest
13.35
ng
g-1.
pharmaceutical
lowest
removal
efficiency
(2-12%)
WWTPs
while
other
fairly
removed
wastewater.
Overall,
findings
this
indicate
dysfunctionality
selected
Eastern
Cape
province
South
Africa
release
high
amounts
which
can
be
humans,
animals,
aquatic
life.
Chemosphere,
Journal Year:
2025,
Volume and Issue:
375, P. 144252 - 144252
Published: Feb. 27, 2025
Increase
in
the
antibiotic's
usage
and
mis-management
antibiotics'
disposal
has
led
to
occurrence
of
antibiotic
residues
surface
water
bodies.
These
may
pose
considerable
risks
human
as
well
aquatic
organisms
owing
enhancement
antimicrobial
resistance
among
microbes.
Hence,
precautionary
measures
are
need
hour
curtail
compounds
water.
In
addition,
rampant
burning
agricultural
waste
India
causes
air
pollution.
Considering
this,
a
novel
adsorbent
been
developed
from
biomass,
viz.
wheat
straw
(WS),
through
calcination
(CWS),
followed
by
chemical
activation
(AWS).
adsorbents
were
employed
for
removal
ciprofloxacin
(CIP)
Removal
efficiency
90%
(for
CWS)
98%
AWS)
could
be
achieved
at
neutral
pH
room
temperature
conditions.
The
maximum
adsorption
capacity
on
synthesized
was
evaluated
14.51
mg
g-1.
Experimental
findings
further
explored
get
insights
isotherm,
kinetics,
thermodynamics
involved
process.
It
found
that
Langmuir
model
(with
R2
value
0.985)
provided
better
fit
than
other
isotherm
models.
Kinetics
thermodynamic
studies
revealed
process
pseudo
second
order
linear
kinetic
0.999)
with
endothermic
spontaneous
sorption
adsorbent.
Thus,
suitably
used
antibiotics
