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New Rxi™ Fused Silica Columns: Restek chemists use new technology and stringent quality control to produce this new family of columns. Rxi™ columns have unsurpassed inertness for sub-nanogram on-column levels of active compounds, and assure reliable column-to-column performance.
The “Replacement” Column, A Recurring Problem in Gas Chromatography: Professor
Walter Jennings discusses why analysts often encounter problems when replacing a
capillary
GC column, and provides a solution.
Analyze Hydrocarbons on OPN/Res-Sil™ C Bonded GC Packing: In process
GC analyses, this material offers unique selectivity for the difficult-to-separate
saturated and unsaturated C4 hydrocarbons, eluting cis-2-butene before
Sensitive GC/MS Analysis for Drugs of Abuse: An Rxi™-5ms column will resolve acidic/neutral or free basic drugs under one set of conditions. There is no interference from column bleed — not even at 330°C. This is one of the first published applications for our new family of Rxi™ columns.
Monitoring Petroleum Hydrocarbons by Solid Phase Extraction/GC: New manufacturing processes for our Massachusetts TPH solid phase extraction cartridges reduce extractable contaminants almost to blank levels, and assure more reliable fractionation of aliphatics from aromatics. Large, uniform lots of silica reduce the frequency of verifying fractionation results.
New Reference Mix of Canadian Drinking Water Volatiles: This mix includes all 19 volatile compounds on the Canadian Drinking Water List.
trans Fat: Resolving cis and trans FAME Isomers by GC:
The highly polar
RP-HPLC Analysis of Selective Serotonin Reuptake Inhibitors: Two Restek columns provide good retention, selectivity, and peak shape for SSRIs, without ion-pairing chromatography. Choose an Allure™ Basix column and neutral pH conditions, or an Ultra PFP column and acidic conditions — either will improve performance for these basic compounds, relative to alkyl phases.
Developing a Simple, Rugged HPLC Assay for Tetracyclines: An Allure™ Biphenyl column ensures good capacity, high selectivity, and the most symmetric peaks.
Making Life Easier - Restek Technical Service: When you want to discuss GC or HPLC column options, or have any other concern about chromatography, Restek Technical Service is just a toll-free phone call away. Our experienced, dedicated team provides expert, “Plus 1” service every time you call.
Featured Restek Products
HPLC Accessories:
Genuine Restek Replacement Parts for Shimadzu HPLC Systems
GC Accessories:
Headspace Vials; Hand-Held, Rechargeable, Crimpers and Decappers
Peak Performers: Avoid Septum
Problems
Click-On Inline Super-Clean™ Traps
These publications are available in printed form or online, as downloadable pdf files.
