Author Archive

Don’t forget about your lab’s moisture traps/filters, especially when it’s summer

One of the common issues which arise in laboratories during the summer is moisture in the gas lines. Although I never quite understood how this would happen when using gas cylinders, it does, especially when a manifold system is used, or if the length of tubing from the gas source to the instrument is longer […]

Is the column shown on the COA for a chemical reference standard the best column for these compounds?

  In some cases the answer is “yes”. In most cases the answer is “no”.   So why would we choose a column that is not the optimal for a specific standard? It’s because of the large number of reference standards we sell. Each mix needs to have its own validated method. If we were […]

Cross reference lists for GC columns and other useful links

With everyone in such a hurry these days, when you cannot find what you need in a few minutes, how often do you give up and move onto your next project?   I’m the same way, so when I find a way to group commonly referenced information into one convenient area, I usually do it.  Below […]

A little extra information for installing/conditioning a new packed/micropacked column

Even though we include instruction sheets with most of our packed/micropacked columns which contain enough information for most customers, some customers (many who are new to using packed columns) contact us routinely asking for some additional assistance. As a result, I decided to add some additional information to our current instruction sheets hoping it helps those […]

Material Composition of Resprep® Manifold Replacement Parts

A customer asked me yesterday what material certain items for our SPE manifolds were made from.  The answers are below.     Catalog # 26083 is Nylon Catalog #’s 26130 & 26131 are Polypropylene Catalog # 26084 is PTFE   For those of you who need to avoid sample contact with PTFE, we also sell […]

A brief introduction to DiatoSorb-W

. DiatoSorb-W is a diatomaceous earth material that Restek will sell in packed columns and as a coated packing material (% loading with a liquid phase of your choice), which will replace Chromosorb-W products/packings. For those of you who may not know, the “W” stands for “white”, and is simply the color of the untreated, uncoated […]

Looking for a quote for a GC custom packed column?

To check to see if we can manufacture a custom packed column, you will need to complete the form found in the link below. If we can manufacture the column, you will automatically receive a quote for it.  If not, customer service will inform you and let you know why. Custom Packed/Micropacked Column Request Form […]

SDS’s for 22010, 22011, 22014 and 22015 (Indicating Oxygen & Moisture traps/filters)

Even though we are not required to include a SDS (MSDS) for most of our products (articles), we often get asked for them for our gas filters/traps (for disposal information). Included below are the SDS’s for the following Restek catalog numbers: 22010 & 22011 (Indicating Oxygen traps/filters) 22010-22011 MSDS Restek       22014 & […]

What is the difference between a Ball, Toggle, and Plug Valve?

Lately we (technical service) have had multiple calls asking the question “What is the difference between a Ball, Toggle, and Plug Valve?”   The first call I took actually caught me off guard because this has not been a common question.  My answer went something like this “For two-handed operation, I prefer the ball valve and […]

Several things you may not know about our Super-Clean® Gas Filters

Recently one of the designers of the Super-Clean® Gas Filters spent some time with technical service and we were able to ask him a few common questions we get asked by customers. I thought I would share this information with you.   A.  The fittings used on the baseplates (and those for the inline filters) […]