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Visit us at Booth 2735

Visit our poster: Simultaneous LC/MS Analysis of Ultra-Short Through Long Chain PFAS Compounds (C1-C10) in Industrial and Ground Water on Monday, Feb 26, 2024 1:00 PM to 3:00 PM. (America/Vancouver); Expo Floor/Environment & Energy

Welcome to Shodex

Welcome to Shodex

Welcome to the US-based home for Shodex™ LC and LC/MS columns manufactured exclusively by Resonac, formerly Showa Denko. Go where you want to go. Use the quick navigation grid.

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Recorded Webinar Available

Learn the basics of size exclusion chromatography.

This 45-minute webinar, presented by Dr. Tanya Napolitano in November 2023, is available on YouTube. Watch now!

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Hot Topics: PFAS & Environmental Pollutants


Analysis of PFAS According to Japanese Industrial Standards Method (JJ-50 2D)

The Japanese Industrial Standards (JIS) K0450-70-10 states the “Testing methods for perfluorooctanesulfonate (PFOS) and perfluorooctanoate (PFOA) in industrial water and wastewater”. It writes a quantitative analysis of PFOS and PFOA…


Analysis of PFAS (VT-50 2D)

PFAS stands for per- and poly-fluoroalkyl substances. They are hardly decomposed in the environment and contain substances that are subject to the Stockholm Convention on Persistent Organic Pollutants (POPs). Its…


Effects of Eluent Composition Ratios on PFOS and PFOA Analysis (JJ-50 2D)

Perfluorooctanesulfonic acid (PFOS) and Perfluorooctanoic acid (PFOA) rarely decompose in the natural environment and thus their persistence in the environment and accumulations in living organisms are problems to be considered.…


Melamine (2) (NH2P-50 2D)

Polymer-amino column, Asahipak NH2P-50 2D was used for melamine LC/MS analysis. LC/MS provides high selectivity and high sensitive measurement. Sample : 1μL Melamine Left – milk, Center – Powder milk,…


Arsenic Compounds in Marine Life

Arsenic compound in marine life were analyzed using Asahipak GS-220 7G (a multimode column). GS-220 7G is an old type of GS-220 HQ.   Sample: Arsenic compounds   Column :…


Dialkyltin Compounds

Dialkyltin compounds were analyzed using Asahipak GS-310 7E (a multimode SEC column). GS-310 7E is an old type of GF-310 HQ. Sample : e. Dibutyltin f. Dioctyltin Column : Shodex…


Analysis of Haloacetic acids

Five kinds of haloacetic acid were analyzed with RSpak JJ-50 2D. Sample : 500ppm each, 2micro-L 1. Chloroacetic acid 2. Bromoacetic acid 3. Dichloroacetic acid 4. Dibromoacetic acid 5. Trichloroacetic…



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Quickly browse through our applications by clicking a category below.


Indomethacin was analyzed using Asahipak ODP-50 6E (a column for […]

Heparin (3) (KW-804)

Heparin sodium was analyzed using PROTEIN KW-804, a column for […]

Analysis Method of N-Methylcarbamates

N-methylcarbamates are widely used as insecticides for agricultural products. Their […]
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Notice of Internal Reorganization of Showa Denko America, Inc.

Oct 18, 2022

View the full letter. Dear Shodex™ Customers, I am writing to you on behalf of Showa Denko America, Inc. (“SDA”) to notify you that SDA…

Notification of Shodex™ Column COA Errant Information & Proposed Amended COA Distribution

Mar 9, 2022

Please contact Resonac America directly if you have or suspect you have a suspected product or products. Support: +1.212.370.0033 Opt. 2Sales: + x116 or 347.453.8814Email…

Notification of Shodex™ Out-of-specification Products and Replacements

Mar 9, 2022

Please contact Showa Denko America directly for further assistance if you have or suspect you have an out-of-specification product or products. Support: +1.212.370.0033 Opt. 2Sales:…

Resumption Molecular Weights Information for Pullulan Standards

Mar 9, 2022

We temporarily suspended providing molecular weight measurements by static light scattering (LS) method of our pullulan standards as the analytical institute that we use could…


June 2024

72nd ASMS Conference on Mass Spectrometry and Allied Topics

72nd ASMS Conference on Mass Spectrometry and Allied Topics

June 2, 2024 - June 6, 2024    
All Day
Visit our booth at the 72nd ASMS Conference. Details coming in March 2024.