Rxi-65TG

Accurate, Reliable GC Analysis of Triglycerides in Edible Oils - Fight Food Fraud with Rxi-65TG Columns

Edible oils, especially olive oil, are big business. It’s why honest producers strive for a quality product, and it’s why others cheat consumers by selling adulterated goods that have been blended with or completely replaced by cheaper, lower-quality oils. To protect the industry, food scientists require analytical solutions that dependably determine quality and authenticity. For decades, GC columns with 65% phenyl-substituted polysiloxane stationary phases (65-type) have been used to analyze triglycerides (acylglycerols) in edible oils. But, quality and consistency vary significantly because evenly coating these phases inside column tubing is very difficult to do. As a result, 65-type columns can exhibit high bleed and low inertness. Bleed interferes with accurate identification and quantitation, and over time it leads to shifts in retention time, loss of resolution, and poor peak shape due to increasing column activity. The relatively high temperatures used in most triglyceride methods only exacerbate these problems.

To provide a better option for food scientists around the world, Restek developed a 65-type column that couples a new high phenyl column-coating technology with the proven manufacturing techniques used to make our premier Rxi column family. The result is the Rxi-65TG column, a thermally stable, reliably robust column designed specifically for the analysis of triglycerides in edible oils.

• High-temperature stability ensures consistent results and fewer column changes.
• Separate and quantify critical triglycerides without interference from column bleed
• Observe even underivatized mono- and diglycerides

RESTEK Rxi-65TG Brochure