Author Archive

Please note the change!

As of May 29th, 2015, after 30 years of service as research scientist at Health Canada, I will be retiring. I look forward to a new phase in my career with great excitement. If I could be of any assistance, please do not hesitate to contact me by email:; Tel: +1 613-797-9815 1 613-797-98151 613-797-9815 (cell)

Saeed A. Qureshi, Ph.D.

Citing a Post

To cite a post from this blog, you may use the following format which is in the Harvard Referencing Style:

“Saeed A. Qureshi. (2010). Determining blood concentration-time (C-t) profiles from in vitro dissolution results and product evaluation–carbamazepine. Available: Last accessed 25h Jan 2010.”

Crescent-Shaped Spindles – Now Available

A New Crescent-shaped Spindle for Drug Dissolution Testing—But Why a New Spindle? (Link).

Crescent-shape spindle: Facts sheet (Link)

Advantages of using the crescent shape spindles for drug dissolution testing (Link)

The following links are for the short video clips demonstrating comparative operations of the paddle and the crescent-shape spindles.

Using a disintegrating tablet: Paddle and Crescent-shape spindle

Using a non-disintegrating tablet: Paddle and Crescent-shape spindle

Note: Dimensions may appear slightly distorted

On-site training/demonstration can be arranged. Post-graduate/doctoral fellows who are interested in using the crescent-shaped spindles for their on-going research projects may request samples.

For further information and purchase inquiries please contact by sending an email to ( or call at: 1-613-797-9815.


Useful Lists Section – Updated (Sep 22, 2011). (Link)

Publication List (updated December 06, 2010)

See under “Useful Lists”.

Crescent-Shaped Spindle

Now Available
Click here