Q: Why are higher resolution monochromators found in ICP atomic emission spectrometers than
Why are higher resolution monochromators found in ICP atomic emission spectrometers than in flame atomic absorption spectrometers?
See AnswerQ: Why are the lines from a hollow-cathode lamp generally narrower
Why are the lines from a hollow-cathode lamp generally narrower than the lines emitted by atoms in a flame?
See AnswerQ: In flame AA with a hydrogen/oxygen flame, the absorbance
In flame AA with a hydrogen/oxygen flame, the absorbance for calcium decreases in the presence of large concentrations of phosphate ion. a) Suggest an explanation for this observation. b) Suggest th...
See AnswerQ: Name four characteristics of inductively coupled plasmas that make them suitable for
Name four characteristics of inductively coupled plasmas that make them suitable for atomic emission spectrometry.
See AnswerQ: Why is the ICP rarely used for atomic absorption measurements?
Why is the ICP rarely used for atomic absorption measurements?
See AnswerQ: Discuss the differences that result in ICP atomic emission when the plasma
Discuss the differences that result in ICP atomic emission when the plasma is viewed axially rather than radially.
See AnswerQ: In the atomic absorption determination of uranium, there is a linear
In the atomic absorption determination of uranium, there is a linear relationship between the absorbance at 351.5 nm and concentration from 500 to 2000 ppm of U. At concentrations much lower than 500...
See AnswerQ: A 5.00-mL sample of blood was treated with
A 5.00-mL sample of blood was treated with trichloroacetic acid to precipitate proteins. After centrifugation, the resulting solution was brought to pH 3 and extracted with two 5-mL portions of methyl...
See AnswerQ: The chromium in a series of steel samples was determined by ICP
The chromium in a series of steel samples was determined by ICP emission spectroscopy. The spectrometer was calibrated with a series of standards containing 0, 2.0, 4.0, 6.0, and 8.0 μg...
See AnswerQ: The copper in an aqueous sample was determined by atomic absorption flame
The copper in an aqueous sample was determined by atomic absorption flame spectrometry. First, 10.0 mL of the unknown were pipetted into each of five 50.0-mL volumetric flasks. Various volumes of a st...
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