|
|
|
|
|
|
|
|
| Atomic Absorption Standards |
Introduction
Atomic Absorption (AA) still remains a frequently used method
for elemental analysis in both aqueous and organic media.
Graphite furnace atomization (GPAA) and hydride generation
techniques provide the best detection limits for many elements,
especially those of environmental concern. For the determination
of minor and trace chemical elements in various chemical and
metallurgical products, in drinking water and wastewater, in
soils and biological samples, atomic absorption spectroscopy is
the preferred method in most analytical laboratories.
SPEX CertiPrep offers a selection of atomic absorption
calibration standards and matrix modifiers. As always, we supply
each solution with a comprehensive Certificate of Analysis which
documents the quality. Each standard is manufactured under the
same Triple-Checked Quality Assurance Program as our plasma-grade
solutions.
SPEX CertiPrep's unique Triple Checked for Quality® just
got better. We now triple check our products for quality
twice.
The Starting Material
- Stoichiometry of starting material
- Trace cation/anion standard impurities by ICP-AES or ICP-MS
or IC
- CL, SO4, checked by classical wet chemistry
The Final Solution
- ICP-AES or IC for the major element
- Classical wet assay for major element
- Final ICP-AES or ICP-MS or IC analysis for trace
cation/anion impurities on the actual solution
To ensure that your measurements are accurate, you can rely on
our certificates to provide complete information.
|