Discuss the major differences between DLS and LALLS.

Discuss the major differences between DLS and LALLS.

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December 22, 2021
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Discuss the major differences between DLS and LALLS.

Answer and ExplanationSolution by a verified expert

Explanation
In LALLS, a laser beam is passed through a sample of particles and collects light intensity data at different scattering angles away
from the axis of laser beam while in DLS, a monochromatic light source generally a laser, is passed through a polarizer and then, a
sample. The scattered light then goes through a second polarizer where it is collected by a photo-multiplier tube and the resulting
image is projected onto a screen. DLS is used for examining the dynamics of the solution and measuring the particle size. This
technique involves the measurement of the Doppler broadening of the Rayleigh scattered light owing to the brownian motion of the
particles. It
Verified Answer 숥
LALLS is known as Low Angle Laser Light Scattering while DLS is known as Dynamic Light Scattering.
In DLS, resolution is extremely less while LALLS has low resolving power.
LALLS is used for measuring measuring particle sizes from to whereas DLS is used for obtaining size
information of particles having size ranging from nanometres to
LALLS is popularly being used as a detector for size exclusion chromatogarphy whereas DLS is used for the size determination
of polymer lattice, biopolymers, biocolloids and resins and to monitor the growth of particles during emulsification or
polymerization

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