Author Archive

Terpene Analysis Approaches – Part III

It’s time to dive back into analyzing terpenes! Previously, we looked at two types of sample preparation for analyzing terpenes via HS-Syringe and HS-SPME. If you missed those blogs, be sure to check them out here and here before moving on! In my last blog, I showed that HS-SPME outperformed the HS-Syringe when analyzing terpenes. […]

Terpene Analysis Approaches – Part II

Welcome back my fragrance fanatics! Today, we continue exploring approaches for analyzing terpenes. If you missed part one, you can get caught up here! Last time, we discussed two HS approaches that just flat out stunk! So, it’s time to make some adjusts. The first thing to check was the way our samples were prepared. […]

What’s in your mouse feed?

When it comes to different types of GC techniques, headspace (HS) analysis is about as clean as they come. Typically, hundreds of injections can be made without doing any inlet maintenance or column trimming. It is one of my favorite techniques in the lab since it encompasses countless different unique applications. Even though HS is […]

Terpene Analysis Approaches – Part I

Welcome to the newest blog series that totally stinks! In this series we’re going to look at different approaches for analyzing terpenes in cannabis. To quickly brief those who may not be familiar with terpenes, this class of compounds is responsible for many of the flavors and aromas in cannabis. Not only are cannabis growers […]

Thrive with the New Rxi-65…TG!

Introducing our new and improved GC stationary phase: The Rxi-65TG! This column is essential for analyzing triglycerides in edible oils! You may be asking yourself, why the need for a new 65-type phase? Well, we certainly were not happy with the way our current Rtx-65TG was performing. After redeveloping the polymer and using Rxi technology, […]

A Hoppy Little Story

Now that we’re getting into the warmer months of the year, you’re probably starting to see pop-up beer gardens or people outside relaxing with a nice cold one. Since the beer industry has been evolving and people are enjoying craft beers more and more, there are tons of unique brews on the market. If you […]

SPME Fundamentals: A Look into Incubation and Extraction Temperatures

Being fairly new to anything comes with some good lessons learned. My recent foray into Solid Phase Microextraction (SPME) has been a lot of fun, but I’d be lying if I said it has not been frustrating, complete with some face-palming moments.     In this series, we are going to take you on a […]

Does your cannabis lab need a Residual Solvents standard? Look no further, friend!

So, we got the news. Cannabis labs and application chemists are sick and tired of residual solvent standards in DMSO. Instead of continuing to offer you something that can be difficult to work with, we put our heads together at Restek to offer you a new RSA standard in N,N-Dimethylacetamide (DMA)! Not only is this […]

Cannabis Concentrates Part III: A Second Extraction Approach

And we’re back! Previously, we discussed analyzing residual solvents via HS-GC using a gas-tight syringe. If you missed it, be sure to check it out here! Today, we are talking about a sample extraction technique that is less common, but has great capabilities; known as Solid Phase Microextraction (SPME). SPME is a sampling technique consisting […]

Which Headspace Vial Cap Is Right For Me?

Today, I’d like to cover a question that I have been receiving from cannabis labs who are doing residual solvents analysis. This blog may not only help cannabis labs, but also help labs analyzing other matrices looking for residual solvents or very volatile compounds. The question is, “Which type of vial and vial cap combination […]