Critical Reviews in Analytical Chemistry,
Год журнала:
2023,
Номер
unknown, С. 1 - 27
Опубликована: Ноя. 7, 2023
This
review
summarizes
(i)
compositions
and
types
of
improvised
explosive
devices;
(ii)
the
process
collection,
extraction
analysis
evidence
encountered
in
related
cases;
(iii)
inter-comparison
analytical
techniques;
(iv)
challenges
prospects
detection
technology.
The
highlights
this
study
include
extensive
information
regarding
National
&
International
standards
specified
by
USEPA,
ASTM,
so
on,
for
explosives
detection.
holistic
development
tools
ranging
from
conventional
methods
to
advanced
is
also
covered
article.
most
important
aspect
make
forensic
scientists
familiar
with
during
steps
avoid
them.
problems
can
be
analyte-based,
that
is,
interferences
due
matrix
or
added
molding/stabilizing
agents,
trace
amount
parent
post-blast
samples
many
more.
Others
are
techniques-based
viz.
specificity,
selectivity,
sensitivity
technique.
Thus,
it
has
become
a
primary
concern
adopt
rapid,
field
deployable,
highly
sensitive
techniques.
Sensors,
Год журнала:
2023,
Номер
24(1), С. 157 - 157
Опубликована: Дек. 27, 2023
Currently,
urine
samples
for
bacterial
or
fungal
infections
require
a
long
diagnostic
period
(48
h).
In
the
present
work,
point-of-care
device
known
as
an
electronic
nose
(eNose)
has
been
designed
based
on
“smell
print”
of
infections,
since
each
one
emits
various
volatile
organic
compounds
(VOC)
that
can
be
registered
by
systems
and
recognized
in
very
short
time.
Urine
were
analyzed
parallel
using
culture
eNose
technology.
A
total
203
analyzed,
which
106
infected
97
not
infected.
principal
component
analysis
(PCA)
was
performed
these
data.
The
algorithm
initially
capable
correctly
classifying
49%
samples.
By
SVM-based
models,
it
is
possible
to
improve
accuracy
classification
up
74%
when
randomly
85%
data
training
15%
validation.
model
evaluated
having
correct
rate
74%.
conclusion,
high,
promising
amenable
further
improvement,
potential
become
feasible,
reproducible,
low-cost
high-precision
applied
clinical
practice
diagnosis
urinary
tract
infections.
Critical Reviews in Analytical Chemistry,
Год журнала:
2023,
Номер
unknown, С. 1 - 27
Опубликована: Ноя. 7, 2023
This
review
summarizes
(i)
compositions
and
types
of
improvised
explosive
devices;
(ii)
the
process
collection,
extraction
analysis
evidence
encountered
in
related
cases;
(iii)
inter-comparison
analytical
techniques;
(iv)
challenges
prospects
detection
technology.
The
highlights
this
study
include
extensive
information
regarding
National
&
International
standards
specified
by
USEPA,
ASTM,
so
on,
for
explosives
detection.
holistic
development
tools
ranging
from
conventional
methods
to
advanced
is
also
covered
article.
most
important
aspect
make
forensic
scientists
familiar
with
during
steps
avoid
them.
problems
can
be
analyte-based,
that
is,
interferences
due
matrix
or
added
molding/stabilizing
agents,
trace
amount
parent
post-blast
samples
many
more.
Others
are
techniques-based
viz.
specificity,
selectivity,
sensitivity
technique.
Thus,
it
has
become
a
primary
concern
adopt
rapid,
field
deployable,
highly
sensitive
techniques.
