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Measurement, Instrumentation, and Sensors Handbook, Second Edition, 2nd Edition
book

Measurement, Instrumentation, and Sensors Handbook, Second Edition, 2nd Edition

by John G. Webster, Halit Eren
February 2014
Intermediate to advanced content levelIntermediate to advanced
1921 pages
82h 13m
English
CRC Press
Content preview from Measurement, Instrumentation, and Sensors Handbook, Second Edition, 2nd Edition
7-6 Sensors and Sensor Technology
TABLE 7.1 continued Overview of Various Needle-Type Environmental Microsensors
Measurement Type
Analytical Methods/
Mechanisms Slope
a
, Response Time Conc. Range, (LOD
b
)
Key Materials/Compound/
Procedures References
NH
2
Cl Solid • Amperometry
• Reaction between
PtOH and NH
2
Cl
18 pA/(mg Cl
2
/L), <5 s 0–10 mg Cl
2
/L (0.3 mg Cl
2
/L) • Pt wire
• Polarization
• Controlled condition where
predominant chlorine species
are NH
2
Cl (i.e., Cl
2
:N = 4:1,
pH8.0)
[18]
Redox
p
otential Solid
Po
tentiometry
Ner
nstian
e
lectrode
res
ponse
1
mV/mV
,
<1 min • Pt w
ire
Et
ching
in 2 M K
CN
s
olution
Wi
thin
10 mV o
f
t
he
n
ominal
re
dox
p
otentials
(A ...
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Publisher Resources

ISBN: 9781439848913