10 Questions
What is the surface diameter of a particle?
The diameter of a sphere with the same surface area as the particle
Which type of diameter is used when analyzing powders used for suspension?
Sedimentation diameter
In microscopy, what is the optical size range for particle size analysis?
0.5-100 µm
What method is used to determine the particle size range through electronic means?
Electronic determination of PS (Coulter counter)
What is the main purpose for using stoke's diameter in particle size analysis?
Measuring sedimentation rate
When analyzing powders for pharmacological action after dissolution and absorption, which diameter is typically used?
Volume diameter
What is the sedimentation diameter used to describe in particle size analysis?
Sedimentation rate of a particle
In microscopy for particle size analysis, how is the sample prepared?
Prepared as a slurry in a liquid dispersion medium
What determines the type of expressed diameter used in particle size analysis?
The method used to determine the diameter
What does volume diameter represent in particle size analysis?
The size of a sphere with the same volume as a particle
Learn about the importance of characterizing physical and chemical properties of drug molecules during preformulation and product development stages, with a focus on designing an optimal drug delivery system. Understand the definition of particle size and how it impacts various properties of drugs.
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