Abstract
Heavy
metal
ions
(HMIs),
particularly
Hg
2+
,
Fe
Pb
and
Cd
are
toxic
to
biological
systems.
These
HMIs
display
a
wide
distribution
in
aqueous
systems,
due
their
bioaccumulation
tendency,
prevalence,
even
at
very
low
concentrations,
results
serious
health
issues
humans.
This
warrants
the
availability
of
easily
affordable,
reliable,
quick,
sensitive
approaches
for
real‐time
monitoring
concentration
environments.
Herein,
we
present
synthesis
novel
hydrazone
functionality‐based
chromogenic
probe
that
ensures
selective
spectrophotometric
sensing
HMIs.
More
specifically,
3‐(2‐(2,4‐dinitrophenyl)
hydrazono)
Penta‐1,4‐diene‐1,5‐diyl)
diphenol
referred
as
HZ
MS
through
two‐step
approach
via
low‐cost
precursors
viz.
Salicaldehyde,
acetone,
2,
4‐dinitrophenyl
hydrazine
(2,
4‐DNP)
is
presented.
The
unique
functionality
as‐synthesized
HZ,
well‐characterized
spectroscopic
approaches,
demonstrated
facilitate
with
detection
limits
0.74
μM,
1.46
0.75
nM
respectively.
Importantly
response
be
nature
HMI,
which
does
ensure
specification
chosen
ability
well
within
ranges
include
WHO‐recommended
safe
concentrations
these
