Study Set Content:
Ba
554 nm
K color
Violet
Li color
Orange
Ca
orange
Sodium
Yellow
Barium
Lime green
APPLICATION OF AES
Quantification of alkali metals in alkali metal salts, infusion and dialysis solutions.
• Determination of metallic impurities in some of the other inorganic salts used in preparing these solutions
ASSAY THAT USES AES
1. Assay of Na and K ions in an i.v infusion
2. Assay for KCl, NaCl and glucose i.v infusion
detects elements in either liquid or solid samples through the application of characteristic wavelengths of electromagnetic radiation from a light source.
Atomic absorption spectrometry (AAS)
Individual elements will absorb wavelengths differently, and these absorbances are measured against
standards
Detects elements in either liquid or solid samples through the application of characteristic wavelengths of electromagnetic radiation from a light source. Individual elements will absorb wavelengths differently, and these absorbance are measured against standards. In effect, AAS takes advantage of the different radiation wavelengths that are absorbed by different
atoms
It is an easy, high-throughput, and inexpensive technology used primarily to analyze elements in solution.
ATOMIC ABSORPTION SPECTROPHOTOMETRY (AAS)
. As such, AAS is used in
food and beverage, water, clinical research, and pharmaceutical analysis.
It is also used in mining operations to determine, for instance, the percentage of precious metal in
ores
has an unlimited number of applications and is still a popular choice for uncomplicated trace elemental analysis.
AAS
AAS is a much more (blank) technique than AES
sensitive
Only applicable to metallic elements.
Limitations AES
More sensitive than AES. A highly specific method of analysis useful in some aspects of quality control.
Srength
Each element requires a different hollow cathode lamp for its determination.
Limitations
Atoms of a metal are volatilized in a flame and their absorption of a narrow band of radiation produced by a (blank), coated with the particular metal being determined, is measured
hollow cathode lamp
