for pa lab

Question 1

Study of the interaction of LIGHT/EMR with matter

Answer 1

Spectroscopy

Question 2

Involves measurement of the amount of EMR that is absorbed, emitted or scattered by a sample to perform an assay

Answer 2

Spectroscopy

Question 3

Spectroscopy is quantitative in nature

Answer 3

TRUE

Question 4

a branch of electromagnetic spectroscopy concerned with the quantitative measurement of the reflection or transmission properties of a material as a function of wavelength.

Answer 4

Spectrophotometry

Question 5

Pharmacopoeial methods rely heavily on simple analysis by ______ to determine active ingredients in formulations.

Answer 5

UV/visible spectrophotometry

Question 6

Instrumentation of Spectroscopy

Answer 6

Light Source
Wavelength Isolator
Sample Cell/Cuvette
Detector
Signal Processing and Readout Unit

Question 7

Radiation Sources/Light Sources

Answer 7

Deuterium Lamp
Hydrogen Lamp
Tungsten Filament Lamp
Xenon Arc Lamp

Question 8

It isolates a limited region of the
spectrum of measurements

Answer 8

Wavelength Isolator

Question 9

It converts radiant energy to a measurable electrical signal

Answer 9

Detector

Question 10

This device enable the selection of relatively narrow bond of wavelengths from a broad brand of radiation.

Answer 10

Wavelength Selector

Question 11

Prevent passage of radiation at all wavelengths except in a fixed wavelength region.

Answer 11

Filters

Question 12

Methods of Quality System for the Analytical Laboratory

Answer 12

Uv and Visible Spectrophotometry
NIR Spectrometry
MID IR Spectrometry
Fluorescence Soectrometry

Question 13

It is one of the most widely used techniques in analytical chemistry, capable of producing accurate and precise results. For these reasons, procedures using this technique are found in analytical, clinical, and research laboratories, and find extensive use in quality assurance.

Answer 13

UV-Vis Spectrophotometry

Question 14

It is used routinely to monitor in vitro release of active ingredients from formulations.

Answer 14

UV Spectrophotometry

Question 15

NIR radiation has good penetration properties and thus minimal sample preparation is required and thick sample layers can be used to compensate for the weakness of NIR absorption

Answer 15

NIR Spectrometry

Question 16

Has the potential to replace chromatography as a method for more rapid analysis of multicomponent samples.

Answer 16

NIR Spectrometry

Question 17

It is a very important and widely used sample characterization and analytical technique, whether the sample is in the form of a gas, a liquid, paste-like, or solid.

Answer 17

MID IR Spectrometry

Question 18

It is a powerful method that can be applied to diverse biological problems.

Answer 18

Fluorescence Spectrometry

Question 19

Instruments illuminate samples with short wavelength light in the visible or ultraviolet wavelength regions.

Answer 19

Fluorescence Spectrometry

Question 20

It has the highest electromagnetic radiation

Answer 20

Gamma Rays

Question 21

It has the lowest electromagnetic radiation

Answer 21

TV/Radio Waves

Question 22

It is the term used to define the complete system of energy propagated in wave form.

Answer 22

Electromagnetic Spectrum