Sigma-Aldrich

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3050 Spruce St.
St. Louis , MO 63103

314-771-5765
cssorders@sial.com

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Ascentis Express 5 μm HPLC Columns

Supelco's Ascentis Express columns packed with 5 μm Fused-Core® particle technology offer the benefits of faster and more efficient separations compared to columns based on 3 μm and 5 μm totally porous particles, without any backpressure concerns. These columns are also extremely rugged, making them an ideal choice for bioanalytical LC-MS methods since they excel under the demands of high flow rate and high throughput. (3:36)

Supel QuE Z-Sep Sorbents for QuEChERs from Sigma Aldrich

Sigma Aldrich introduces Supel QuE Z-Sep silica based sorbents for QuEChERs. QuEChERs is a solid phase extraction (SPE) technique for sample preparation. New to the Supel QuE product line is Z-Sep purification sorbents for lipids and difficult food matrices. Z Sep and Z Sep+ sorbents extract more fat and pigment than traditional PSA /C18 phases while showing enhanced analyte recovery and greater reproducibility. Z-Sep sorbents are inexpensive, safe and easy to use zirconia-coated silica particles designed for the analysis of hydrophobic analytes in fatty matrices. (5:02)

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