TY - JOUR
T1 - Development of a pulsed radio frequency glow discharge forthree-dimensional elemental surface imaging. 1. Application tobiopolymer analysis
AU - Gamez Goytia, Gerardo
AU - Ray, Steven J.
AU - Andrade, Francisco J.
AU - Webb, Michael R.
AU - Hieftje, Gary M.
PY - 2007/2
Y1 - 2007/2
N2 - Glow discharge optical emission spectrometry has cemented itself as an
important surface elemental analysis technique in part because of its
superb depth resolution (on the order of single nanometers). However,
very few studies have explored the ability of the glow discharge to
provide laterally resolved elemental information. In the present study,
an end-on-viewed pulsed radio frequency glow discharge is coupled to a
monochromatic imaging spectrometer to provide lateral surface imaging.
The performance of the technique is demonstrated with etched copper
circuits on fiber-glass substrates, and it is shown how several
operating parameters including pressure, pulsed mode operation, and
time-resolved detection affect the lateral surface resolution. In
addition, because a pulsed radio frequency glow discharge offers
elemental information on nonconducting samples, the technique is applied
to the three-dimensional elemental analysis of proteins on blotting
substrates. Several alternative sa
AB - Glow discharge optical emission spectrometry has cemented itself as an
important surface elemental analysis technique in part because of its
superb depth resolution (on the order of single nanometers). However,
very few studies have explored the ability of the glow discharge to
provide laterally resolved elemental information. In the present study,
an end-on-viewed pulsed radio frequency glow discharge is coupled to a
monochromatic imaging spectrometer to provide lateral surface imaging.
The performance of the technique is demonstrated with etched copper
circuits on fiber-glass substrates, and it is shown how several
operating parameters including pressure, pulsed mode operation, and
time-resolved detection affect the lateral surface resolution. In
addition, because a pulsed radio frequency glow discharge offers
elemental information on nonconducting samples, the technique is applied
to the three-dimensional elemental analysis of proteins on blotting
substrates. Several alternative sa
M3 - Article
SP - 1317
EP - 1326
JO - Analytical Chemistry
JF - Analytical Chemistry
SN - 0003-2700
ER -