Podcast
Questions and Answers
What is the surface diameter of a particle?
What is the surface diameter of a particle?
- The diameter of a sphere with the same sedimentation rate as the particle
- The diameter of a sphere with the same volume as the particle
- The average diameter of particles in a powder sample
- The diameter of a sphere with the same surface area as the particle (correct)
Which type of diameter is used when analyzing powders used for suspension?
Which type of diameter is used when analyzing powders used for suspension?
- Surface diameter
- Average diameter
- Sedimentation diameter (correct)
- Volume diameter
In microscopy, what is the optical size range for particle size analysis?
In microscopy, what is the optical size range for particle size analysis?
- 0.01-1 µm
- 0.5-100 µm (correct)
- 1-10 µm
- 10-50 µm
What method is used to determine the particle size range through electronic means?
What method is used to determine the particle size range through electronic means?
What is the main purpose for using stoke's diameter in particle size analysis?
What is the main purpose for using stoke's diameter in particle size analysis?
When analyzing powders for pharmacological action after dissolution and absorption, which diameter is typically used?
When analyzing powders for pharmacological action after dissolution and absorption, which diameter is typically used?
What is the sedimentation diameter used to describe in particle size analysis?
What is the sedimentation diameter used to describe in particle size analysis?
In microscopy for particle size analysis, how is the sample prepared?
In microscopy for particle size analysis, how is the sample prepared?
What determines the type of expressed diameter used in particle size analysis?
What determines the type of expressed diameter used in particle size analysis?
What does volume diameter represent in particle size analysis?
What does volume diameter represent in particle size analysis?
