1
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Instrumental analysis Questions and
Answers (100% Correct Answers) Already
Graded A+
spectroscopy [ Ans: ] the branch of science concerned with the
investigation and measurement of spectra produced when
matter interacts with or emits electromagnetic radiation.
monochromator [ Ans: ] -A monochromator is an optical
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component which is used to produce a beam of light with a very
narrow bandwidth -effectively light of a single color.
-act as tunable bandpass filters for light.
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monochromator grating [ Ans: ] they disperse ultraviolet, visible,
and infrared radiation typically using replica gratings, which are
manufactured from a master grating.
UV-VIS spectroscopy [ Ans: ] refers to absorption spectroscopy or
reflectance spectroscopy in the ultraviolet-visible spectral region.
voltage follower [ Ans: ] -is a op-amp circuit which has a voltage
gain of 1. This means that the op amp does not provide any
amplification to the signal.
-is a op-amp circuit which has a voltage gain of 1. This means that
the op amp does not provide any amplification to the signal.
UV-Vis light source [ Ans: ] Tungsten (visible), deuterium (UV), Hg
(UV)
UV-Vis dispersion element [ Ans: ] prism or diffraction grating
prism [ Ans: ] -The dispersion occurs because the angle of
refraction is dependent on the refractive index of the prism's
material
-Due to the chromatic dispersion of the material, the deflection
angle becomes wavelength-dependent.
, 2
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phototube [ Ans: ] a photodetector based on a small glass tube
containing electrodes where the external photoelectric effect (or
photoemissive effect) is utilized.
photoelectric effect [ Ans: ] the emission of electrons or other
free carriers when light shines on a material. Electrons emitted in
this manner can be called photo electrons.
photomultiplier tube(PMT) [ Ans: ] - useful for light detection of
very weak signals,
-a photoemissive device in which the absorption of a photon
results in the emission of an electron.
-detectors work by amplifying the electrons generated by a
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photocathode exposed to a photon flux
neutral density filter [ Ans: ] -is a filter that reduces or modifies the
intensity of all wavelengths, or colors, of light equally, giving no
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changes in hue of color rendition.
-meant to reduce transmission
Deming's Quality Movement [ Ans: ] Quality management is
focused not only on product and service quality, but also on the
means to achieve it.
SOP [ Ans: ] a set of step-by-step instructions compiled by an
organization to help workers carry out complex routine operations.
SOPs aim to achieve efficiency, quality output and uniformity of
performance, while reducing miscommunication and failure to
comply with industry regulations.
semiconductors [ Ans: ] -act as either a conductor or an
insulator(depending on the conditions)
-has high resistance to current flow
semiconductor doping [ Ans: ] intentional introduction of
impurities into an intrinsic semiconductor for the purpose of
modulating its electrical properties
N-type [ Ans: ] -created by adding pentavalent impurities like
phosphorus (P), arsenic (As), antimony (Sb), or bismuth (Bi).
For Expert help and assignment solutions, +254707240657
Instrumental analysis Questions and
Answers (100% Correct Answers) Already
Graded A+
spectroscopy [ Ans: ] the branch of science concerned with the
investigation and measurement of spectra produced when
matter interacts with or emits electromagnetic radiation.
monochromator [ Ans: ] -A monochromator is an optical
© 2025 Assignment Expert
component which is used to produce a beam of light with a very
narrow bandwidth -effectively light of a single color.
-act as tunable bandpass filters for light.
Guru01 - Stuvia
monochromator grating [ Ans: ] they disperse ultraviolet, visible,
and infrared radiation typically using replica gratings, which are
manufactured from a master grating.
UV-VIS spectroscopy [ Ans: ] refers to absorption spectroscopy or
reflectance spectroscopy in the ultraviolet-visible spectral region.
voltage follower [ Ans: ] -is a op-amp circuit which has a voltage
gain of 1. This means that the op amp does not provide any
amplification to the signal.
-is a op-amp circuit which has a voltage gain of 1. This means that
the op amp does not provide any amplification to the signal.
UV-Vis light source [ Ans: ] Tungsten (visible), deuterium (UV), Hg
(UV)
UV-Vis dispersion element [ Ans: ] prism or diffraction grating
prism [ Ans: ] -The dispersion occurs because the angle of
refraction is dependent on the refractive index of the prism's
material
-Due to the chromatic dispersion of the material, the deflection
angle becomes wavelength-dependent.
, 2
For Expert help and assignment solutions, +254707240657
phototube [ Ans: ] a photodetector based on a small glass tube
containing electrodes where the external photoelectric effect (or
photoemissive effect) is utilized.
photoelectric effect [ Ans: ] the emission of electrons or other
free carriers when light shines on a material. Electrons emitted in
this manner can be called photo electrons.
photomultiplier tube(PMT) [ Ans: ] - useful for light detection of
very weak signals,
-a photoemissive device in which the absorption of a photon
results in the emission of an electron.
-detectors work by amplifying the electrons generated by a
© 2025 Assignment Expert
photocathode exposed to a photon flux
neutral density filter [ Ans: ] -is a filter that reduces or modifies the
intensity of all wavelengths, or colors, of light equally, giving no
Guru01 - Stuvia
changes in hue of color rendition.
-meant to reduce transmission
Deming's Quality Movement [ Ans: ] Quality management is
focused not only on product and service quality, but also on the
means to achieve it.
SOP [ Ans: ] a set of step-by-step instructions compiled by an
organization to help workers carry out complex routine operations.
SOPs aim to achieve efficiency, quality output and uniformity of
performance, while reducing miscommunication and failure to
comply with industry regulations.
semiconductors [ Ans: ] -act as either a conductor or an
insulator(depending on the conditions)
-has high resistance to current flow
semiconductor doping [ Ans: ] intentional introduction of
impurities into an intrinsic semiconductor for the purpose of
modulating its electrical properties
N-type [ Ans: ] -created by adding pentavalent impurities like
phosphorus (P), arsenic (As), antimony (Sb), or bismuth (Bi).
