Specifications
16
Trust your Analysis to Genuine PerkinElmer
We start with an exclusive
grade of graphite
The production of high-quality graphite components requires stringent
quality control. Selection and careful control of raw materials are
extremely important.
The composition and the microstructure of the base graphite material
determine the resistivity of the tube and its heating characteristics.
To ensure high quality and consistency, a specific high-density base
graphite material has been developed for use with PerkinElmer graphite
furnace systems. This base graphite material is used exclusively for the
manufacturing of PerkinElmer’s graphite components.
Our tubes are manufactured and tested
to the highest quality specifications
During manufacturing, a comprehensive quality testing program,
including extensive mechanical, electrical, thermal, and analytical testing
procedures, is strictly followed. Each lot of graphite tubes is tested to
demanding specifications for lifetime, sensitivity, and precision.
Extensive testing ensures that all graphite components shipped by
PerkinElmer provide consistent lot-to-lot performance.
Rely on PerkinElmer graphite
for consistent analytical results.
Every sample.
Every day.
Our pyrolytic coating design is critical
to achieving high performance
The specified thickness of pyrolytic coating applied to PerkinElmer
graphite improves the total resistance of the graphite tube and the
temperature distribution within the tube. Improper pyrolytic coating
can shorten tube lifetime dramatically.
The microstructure and density of the surface are important parameters
for the atomization kinetics of analyte elements. Irreproducible surface
qualities will cause changes in the optimal drying, pyrolysis and
atomization temperatures, peak shape, and characteristic mass.
PerkinElmer’s coating specification and quality control ensure
consistency from tube to tube.
You can depend on our extensive experience
PerkinElmer has over three decades of experience in the design and
development of graphite furnace systems and materials. Years of
PerkinElmer development have yielded the best possible graphite for
atomic absorption. Any other graphite has not been optimized for use
with PerkinElmer instruments, and may yield inaccurate analytical results.
See
page 2
for ordering information and a complete listing of PerkinElmer offices
.










