Tag Archives: blog

Methods For Teaching Chemical Kinetic Experiments

Some of the major challenges faced by researchers (and in particular – organic and analytical chemists) include the need to quickly determine reaction kinetics as well as gain sufficient information to fully understand, characterize and optimize chemical reactions.  This is leading researchers to find innovative ways to obtain the information they require to successfully complete their work.

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Common Ways to Reduce Solubility and Drive Crystallization

This is the second blog post in a series dedicated to crystallization.  In case you missed the first in the series, you can find it here: Introduction to Crystallization and Precipitation.

Reduce Solubility and Drive CrystallizationThe starting point for most crystallization processes is a saturated solution. Crystallization is generally achieved by reducing the solubility of the product in this solution by cooling, antisolvent addition, evaporation* or some combination of these methods. Another common method used to drive crystallization is via a chemical reaction where two or more reactants are mixed to form a solid product insoluble in the reaction mixture; a common example of this would be the reaction of an acid and a base to form a salt. Continue reading

Going Green Using Real-Time Analytics & Process Automation

In the fall, I presented a paper at the 3rd International Symposium on Green Processing in the Pharmaceutical & Fine Chemical Industries in Boston.  Continue reading

Introduction to Crystallization and Precipitation

Crystallization touches every aspect of our lives from the foods we eat and the medicines we take, to the fuels we use to power our communities. The majority of pharmaceutical products go through at least one crystallization step during their manufacture.  Salt and sugar are delivered to our dinner tables as crystals.  The unwanted crystallization of gas hydrates played a role in the recent Deepwater Horizon oil spill. Continue reading

Process Development Conference, Weggis, Switzerland

I am happy to announce that the 18th International Process Development Conference (IPDC) will be held September 25 to September 29, 2011 in Weggis, Switzerland.  This year’s conference will focus on workflows from compound development to manufacturing in the pharmaceutical, fine and specialty chemical industries: Continue reading

PAT & Particle Size Analysis at IFPAC 2011

Three speakers from the 2010 In-Process Particle Forum will present at IFPAC [International Forum Process Analytical Technology] on January 21, 2011 in Baltimore, MD.  Steve Mehrman  of Johnson & Johnson and James Butz of Merck & Co. are scheduled to present during the Particle Characterization/Analysis-Ultrasound Spectroscopy Friday AM V session at IFPAC.  Kevin Macias of Bristol-Myers Squibb will present during the Control Strategies for Drug Product Development and Manufacturing Friday AM VII session. Continue reading

Why Measure Particle or Droplet Distribution in Process or Development?

After last week’s introduction to liquid dosage formulations, I wanted to follow-up with: why measure the particle or droplet distribution in process or in development? Continue reading

What are Liquid Dosage Formulations?

Often, I hear questions surrounding what are liquid dosage formulations.  I thought I might take the opportunity to provide a short introduction to liquid dosage formulations.  Liquid dosage formulations may be in the form of suspensions or syrups, metered dosed inhalers (MDIs), or creams or lotions. All of these systems would typically have particles present or droplets present in their formulations. There could also be parentals, such as injections or intravenous infusions, which may be particle free. Continue reading

Process Analytical Technology at EuroPACT 2011

As I look ahead to 2011, an event of interest is EuroPACT 2011: the second European Conference on Process Analytics and Control Technology.  The EuroPACT 2011 event will be held April 26 to 29 in Glasgow.  Founded in 2006, the EuroPACT conference covers new technologies in process analytics and process performance monitoring, and the implementation of these technologies in various technological fields, including the transformation of data into knowledge, and industrial sectors.

One poster presentation that I wanted to highlight is – Faster Optimization and Troubleshooting with Process Analytical Technology: Real-time Measurement of the Crystal Population. Continue reading