Instrumental Methods of Chemical Analysis
questions with verified answers
a source of electromagnetic radiation in the proper energy region
a cell that is transparent to the radiation and that can contain the
sample
a detector that can accurately measure the intensity of the
radiation after it has passed through the cell, and the sample Ans✓✓✓
Each instrument consists of at least three essential components:
absorptiometry or absorption spectrophotometry Ans✓✓✓ If the
amount of absorbed radiation is measured, the
technique. The techniques that measure absorption in order to perform
an assay are ____
Amperometry
Potentiometry
Conductometry
Coulometry
Voltammetry
Electrogravimetry Ans✓✓✓ The electroanalytical methods are divided
into categories:
, Amperometry Ans✓✓✓ monitors electric current (amperes) while
keeping the potential constant. the method in which the potential
between the two electrodes is controlled and the current is measured
Analyte Ans✓✓✓ the chemical substance that is the subject for
chemical
analysis or simply the substance being analyzed by (for example) mass
spectrometry, infrared spectroscopy, NMR spectroscopy, or
chromatography
Analytical Chemistry Ans✓✓✓ is the science which helps to satisfy such
curiosity
Analytical Instrument Ans✓✓✓ is a physical, often electrically
operated, device that is used to determine the identity or amount of
one or more components in the analyzed substance (the analyte)
Assay Ans✓✓✓ a process of analyzing, determining or examining a
substance to determine its composition, weight, measure or quality. It
can also be used to determine the presence, absence, or quantity of
one or more components in a sample
Chemical Analysis Ans✓✓✓ is concerned with determining either the
identity
of the chemical substances or the amount of a particular substance in a
sample
questions with verified answers
a source of electromagnetic radiation in the proper energy region
a cell that is transparent to the radiation and that can contain the
sample
a detector that can accurately measure the intensity of the
radiation after it has passed through the cell, and the sample Ans✓✓✓
Each instrument consists of at least three essential components:
absorptiometry or absorption spectrophotometry Ans✓✓✓ If the
amount of absorbed radiation is measured, the
technique. The techniques that measure absorption in order to perform
an assay are ____
Amperometry
Potentiometry
Conductometry
Coulometry
Voltammetry
Electrogravimetry Ans✓✓✓ The electroanalytical methods are divided
into categories:
, Amperometry Ans✓✓✓ monitors electric current (amperes) while
keeping the potential constant. the method in which the potential
between the two electrodes is controlled and the current is measured
Analyte Ans✓✓✓ the chemical substance that is the subject for
chemical
analysis or simply the substance being analyzed by (for example) mass
spectrometry, infrared spectroscopy, NMR spectroscopy, or
chromatography
Analytical Chemistry Ans✓✓✓ is the science which helps to satisfy such
curiosity
Analytical Instrument Ans✓✓✓ is a physical, often electrically
operated, device that is used to determine the identity or amount of
one or more components in the analyzed substance (the analyte)
Assay Ans✓✓✓ a process of analyzing, determining or examining a
substance to determine its composition, weight, measure or quality. It
can also be used to determine the presence, absence, or quantity of
one or more components in a sample
Chemical Analysis Ans✓✓✓ is concerned with determining either the
identity
of the chemical substances or the amount of a particular substance in a
sample
