Archive for the ‘Air’ Category

Aura Personal Air Samplers for NIOSH Canister Method 3900

The National Institute of Occupational Safety and Health (NIOSH) has published their “Volatile Organic Compounds, C1 to C10, Canister Method 3900” in the NIOSH Manual of Analytical Methods (NMAM), Fifth Edition. In short, the method is a variant of United States (U.S.) Environmental Protection Agency (EPA) Method TO-15; however, with a focus on a particular […]

TO-15 + PAMS + TO-11A = China’s HJ759 + PAMS + HJ683

It is very fitting that I write this blog while I am in Shanghai, China. The impetus for this blog, and the blogs to follow, is that the Chinese Ministry of Ecology and Environment (formerly the Ministry of Environmental Protection) published their “VOCs Monitoring Scheme of Environmental Air Quality.” In short, this standard outlines the sampling […]

This Valentine’s Day is all about QUICK connections…

This year, you do not have to be in a long-term, committed relationship in order to embrace Valentine’s Day. In fact, this year is dedicated to “QUICK connections.” You say WHAT???? Check out the following video and you will understand:

An introduction to radiello: a passive, diffusive air sampling badge for VOCs

Today, Restek launched the radiello passive, diffusive air sampling badge for VOCs. Oh… so you do not know what that is. Well then, be sure to check out the following video, which will give you an introduction to radiello: Stay tuned for future blogs featuring how to properly utilize the radiello.

VMS for when your TO-15 air lab is hazy, hot, and humid!

When it comes to analyzing volatile organic compounds (VOCs) in air canisters, it is no secret that my go-to-column is the VMS. I have raved about the VMS in the following pieces: The NJDEP-SRP Low Level TO-15 blog series My Favorite Column blog A white paper And some other articles I am forgetting… You get […]

Rxi-624Sil MS Pro-EZGC Library: 591 Compounds to Choose From

Five years ago Chris English showed in his blog post “I Can’t Drive 55” — The Pure Power of EZGC all 233 compounds that were in the Rxi-624Sil library. While that is a lot, we didn’t want to stop there. This weekend we added over 350 new compounds with various functionalities – e.g. alcohols, aldehydes (first time […]

Alicat Flow Meters for Your TO-11/13/15/17 (Anything Air) Laboratory: Let’s Talk About Errors and Ranges

If you already own an Alicat flow meter, then I will soon be preaching to the choir. However, if you do not have an Alicat flow meter and you work in a toxics organics (TO) air laboratory, whether it be U.S. EPA Method TO-11A or TO-17, etc… then you do not know what you are […]

Sampling and analysis of landfill gas / biogas, an overview

Lately it seems that the sampling and analysis of landfill gas / biogas is a popular topic among our customers.  When initially ask about the topic, I had an idea of what customers were trying to do, but didn’t really have a firm grasp on the topic.  As I dug deeper, I began to realize just […]

Making a TO-15 Working Standard: Part 2 How-To Video

Last time we learned that in order to make a TO-15 working standard from our stock standard we need to determine our stock standard concentration, canister volume, stock standard injection volume, and final canister pressure. We covered how to go about deriving all of the aforementioned, the associated math, and I even provided you with […]

Making a TO-15 Working Standard: Part 1 – The Super Standard Calculator – V2.01

We already learned how to calibrate our TO-15 system, what our concentration units mean, and how to properly read our vacuum gauge while pressurizing samples. We are clearly going out of order here, because I have never covered how to prepare a working standard (necessary for calibrations) from a stock standard. Therefore, the following multi-part […]