Author Archive

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) […]

Even More Technical Service “Red Flags” – GC

My third installment of Technical Service Red Flags contain six more situations that cause us to pay attention and ask questions.  I hope you find these helpful. Using a liquid leak detector to locate gas leaks instead of using an electronic leak detector. Or worse yet, using both at the same time.  We have, unfortunately, communicated […]

More Technical Service “Red Flags” – GC

Just like in my original post, Technical Service “Red Flags” – GC, this post contains several additional Red Flags we look (email) and listen (phone) for in technical service. Trying to set the carrier gas flow rate for a packed column without using a flow meter. You may want to review this previous post. Verify your […]

Technical Service “Red Flags” – GC

For those of you not familiar with the term “red flag”, or phrase “It raised a red flag”, it basically means that something does not sound correct, or is very unusual or uncommon. In tech service, we listen for these “red flags” and if we hear one, we will either offer a cautionary statement if […]

How to make sure your new GC capillary column will fit into your GC oven

I recently spoke to a customer who said she was having a difficult time finding the catalog number of the column she was trying to order. I asked for the catalog number, and she provided 70112-6850. I instantly knew what the problem was, she paired a MXT column catalog number (70112) with a fused-silica column […]