We don't hire employees, we partner with passionate innovators

“The only way to do great work is to love what you do. If you haven’t found it yet, keep looking. Don’t settle. As with all matters of the heart, you’ll know when you find it.”

-Steve Jobs

Accuracy. Innovation. Integrity.
We don’t just talk about them.

With decades of combined experience in laboratory sciences, a multitude of scientific publications and academic awards, we could talk about credentials like everyone else. But we don’t like to brag. We prefer to let our actions do the talking.

8:00a – 8:00p

10:00a – 3:00p

By Appointment


12211 E 52nd Street
Suite 306
Tulsa, OK 74146


Still need proof? Meet the team

Vadim Yerokhin, PhD

Laboratory Director, Founder & CEO

Dr. Yerokhin is a Neuroscientist with over 14 years of experience in the laboratory sciences. He brings expertise in developing analytical techniques, overseeing laboratory design, method validation and technique implementation in the laboratory setting. As an undergraduate, Dr. Yerokhin was inducted into Sigma Xi, the world’s most prestigious scientific honor society, for his role in discovering a novel methodological approach to data analysis for early detection and identification of Alzheimer’s disease. 

Dr. Yerokhin’s research efforts have thus far culminated in numerous authored scientific publications, presentations and talks around the world.  He trained at the world’s leading institutions, such as Johns Hopkins University (where he attended graduate school), Union College in New York, and the National University of Ireland Galway (where he developed an important part of the aforementioned experimental technique).

Dr. Yerokhin’s ties to the Oklahoma community date back to 8th grade, when he moved from Ukraine to Oklahoma in search for the liberties and opportunities that are so unique to the citizens of the United States of America. He has since become a US citizen and considers the United States his home country. His love for the Sooner spirit brought him back to our state to complete a PhD in Neuroscience at Oklahoma State University. “The young yet rapidly growing industry in our State is ripe with opportunities to meaningfully contribute to the application of scientific techniques to improve the quality of local products and to ensure safety of the Oklahoma community. As a scientist, this is what I am most passionate about.” 

Working alongside today’s top scientific leaders in life sciences, chemistry and computer sciences, Dr. Yerokhin is leading Abraxas Labs in becoming the most innovative, efficient, and the highest quality analytical laboratory in the industry. 

Megan Calahan, RPES

Laboratory Manager, Founder

Megan has 10 years of experience in laboratory sciences. Since graduating with a degree in Microbiology and Botany, Megan has continuously pursued her passion for laboratory science and honed her management skills by working in the laboratory setting and serving as a leader and public servant for the State of Oklahoma. She is a Registered Professional Environmental Specialist (RPES) with the State of Oklahoma, where she has helped develop methodology for the State Health Department’s operational processes, optimized administrative oversight during state-wide emergencies, and is in charge of maintaining effective and timely mitigation of operative deficiencies during public health emergencies. As a key asset and manager at Abraxas Labs, she assists with method development, ensures systematic organization and assessment of the company’s operations, and oversees quality assurance of the laboratory’s technical processes for cannabis analysis.

David Robertson

Analytical Chemist

David Robertson is an analytical chemist who specializes in ICP metals analysis. He has 5 years of experience implementing methods for gas, soil, and water analysis in the energy industry. David enjoys problem solving with customers and providing data or ideas to optimize their business. He can help you test your plants, soil, and water for nutrient metals so you can provide optimal grow conditions for your product, as well as provide accurate results on regulatory metals.

Matthew Green, PhD

Analytical Chemist (Green Analytical Sciences )

Dr. Matthew Green brings a wealth of technical knowledge and experience in analytical chemistry, toxicology and biomedical sciences. He is a published member of the graduate faculty of analytical chemistry at the School of Forensic Sciences, where he helped spearhead a milestone project for application of mass spectrometry in detection of illicit substances, a method that continues to be used in laboratories across the country. As an educator, he is a great resource for educating laboratory staff on best practices, as well clients to help them solve issues with their grow operation. He has contributed widely in the scientific community through his involvement in national and international organizations.

Madison Sanders, MS

Application Specialist (Green Analytical Sciences)

Madison brings with her a background of robust commercial laboratory experience. In Oklahoma and in Texas, Madison has helped laboratories with establishing standard operating procedures, method development and validations, and general best practices. She has several years of experience in certifying LCMS data and ensuring that only quality data is reported to the client. At Abraxas Labs, Madison has been an integral part in optimizing extraction procedures, analytical method development and ensuring that the analytical chemistry processes in the laboratory are of the highest possible quality.

Samantha Hood

Customer Relations & Social Media Manager

Sam’s passion for the industry, our local community and her relentless drive to deliver a world-class service to every client who chooses to partner with Abraxas Labs, LLC has been honed by over a decade of experience as a leader and a public servant for the citizens of Oklahoma, where she has led countless successful community outreach programs for public jurisdictions of our state. Also bringing with her years of experience as a medical 9-1-1 dispatcher, Sam is is highly proficient in her ability to quickly deliver optimal solutions to important and complex problems during high-pressure situations when decisions have (literally) life-or-death implications. When your livelihood is staked on the quality of your laboratory testing experience, we take our customer service equally seriously.

Reliable test results. Finally.

Reliable test results. Finally.

Want to train alongside an innovative and passionate team?

Did you know: we also welcome future leaders in training. If you are a student looking for an internship, we strongly encourage you to apply as an intern.