Tox Study

CSL-Produced Data Makes Its Way into Tox Study

At the Society of Toxicology’s Annual Meeting and ToxExpo, McGill University students and professors presented their Poster Board: ‘Tungsten Targets Bone Resorption by Enhancing Osteoclasts in the Bone.’ McGill’s samples were sent to CSL for analysis of trace levels of tungsten. The use of tungsten is increasing with the advancement of technologies, but despite its… Read More >

analytical testing

How to submit samples for analytical testing

If you’re wondering how to submit samples for analytical testing, this blog is for you! The first step is to speak with a member of our team to set up testing if you are new to us or if you are exploring new testing options. Then you will be provided with a Sample Submittal Form…. Read More >


Top tweets from the #TOXEXPO #2017SOT

If you ask those in attendance at the Baltimore-based Tox Expo this week, about their experience, we’re certain that some would talk about the snow. While no one in the toxicology industry created ‘expo snow,’ that we know of, a late winter snow storm certainly dominated the conversation online. It also kept some of us… Read More >


CSL Honors Long-Time Team Member, Mark Hartman

March 1 is a special day for CSL. Today, we celebrate Mark Hartman, who has been with the company for exactly 20 years, today.  Mark was kind enough to talk with us about his tenure with the company in the form of a Q&A. We’re honored for your loyalty to CSL as we know it’s… Read More >


PQL & Analytical Testing

A common question we receive here at Chemical Solutions is in relation to PQL. What is it? What does it mean? And how does this relate to my results? PQL stands for practical quantitation limit. Simply put, this is the lowest level at which the method can confidently discern between two different values. This is… Read More >

Predictive Index

CSL Team Thrives with Adoption of the Predictive Index

The team at Chemical Solutions (CSL) recently participated in the Predictive Index (PI)™ assessment through Predictive Synergistic Systems. The concept of the PI is to understand our behavioral drives and motivating needs, which affect all aspects of our work. Brian LaBine, President of CSL says that PI is used as a way to help people… Read More >

Validations & Verifications for Elemental Impurity Testing

Given the current and pending changes to the USP General Chapters <232><233>, there has been much discussion and activity with respect to validation – or verification – of testing methods, as method validation must be specific to the matrix and elemental impurities within a given product or ingredient. Chemical Solutions, Ltd. (CSL) has conducted validations… Read More >

Relative Standard Deviation

A Primer on Relative Standard Deviation (RSD)

Recalling what you learned in algebra class may be the best way to explain Relative Standard Deviation (RSD).  RSD is the Standard Deviation from a pool of data over the average, thus the standard deviation relative to the average or the relative standard deviation. In the video below, Chemical Solutions President Brian LaBine offers a… Read More >


The importance of the taking time off during the holidays

As most of our customers know, CSL will be closed December 23 through December 26 for the Christmas holiday. We’ve made this announcement to our customers through e-blasts, social media and e-mail signatures so they can plan for our departure during this time. We realize it’s not always possible to take off work during the… Read More >

elemental impurity testing

Dermal Administration in Elemental Impurity Testing

The USP has fully promulgated the regulations for testing for elemental impurities in drug products, which will take full effect in January 2018. We’ve explored these regulations in past blog posts including Changes to Testing for Elemental Impurities in Drug Products, Risk Assessment for Elemental Impurities in Drug Products and Extractables & Leachables – Elemental… Read More >

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