Phenomenex Catalog International 2009 - (Page 27) Strata -X Polymeric (SPE) Sorbents ™ Strata-X-CW: Extract Bases by Mixed-Mode Weak Cation Exchange • Cleaner extracts • Weak cation exchange mechanism allows for elution at high and low pH • Elution with LC/MS compatible buffer eliminates the dry down step resulting in faster analysis If Strata SPE products do not perform as well or better than your current SPE product of similar phase, mass and size, send in your comparative data within 45 days and keep the Strata SPE product for FREE! Material Characteristics Particle Size (µm) Pore Size (Å) Surface Area (m2/g) pH Stability Ionic Capacity pKa 33 85 800 1-14 0.76 meq/g ~ 3.5 SAMPLE PREPARATION/SPE Cleanup of Bases (including Quaternary Amines) Weak cation exchange functionality of Strata-X-CW allows for cleanup of strong bases such as quaternary amines that are irreversibly retained on strong cation exchangers. The pKa of the Strata-X-CW sorbent is more versatile in comparison to strong cation exchangers, giving a wider range of flexibility for elution conditions. Also Strata-X-CW allows for elution under acidic conditions with LC/MS compatible buffer. This eliminates the dry down step resulting in faster analysis. | Weak Cation Exchange & Reversed Phase STRATA-X POLyMERIC (SPE) SORBENTS Ordering Information Sorbent Format Mass Tube 30 mg 60 mg 200 mg 500 mg 100 mg 200 mg 500 mg Giga™ Tube 500 mg 1g 1g 96-Well Plate 10 mg 30 mg 60 mg ) n O OH Part Number 8B-S035-TAK 8B-S035-UBJ 8B-S035-FBJ 8B-S035-HBJ 8B-S035-ECH 8B-S035-FCH 8B-S035-HCH 8B-S035-HDG 8B-S035-JDG 8B-S035-JEG 8E-S035-AGB 8E-S035-TGB 8E-S035-UGB Unit 1 mL (100/box) 3 mL (50/box) 3 mL (50/box) 3 mL (50/box) 6 mL (30/box) 6 mL (30/box) 6 mL (30/box) 12 mL (20/box) 12 mL (20/box) 20 mL (20/box) 2 Plates/Box 2 Plates/Box 2 Plates/Box Price Strata-X-CW General Method Condition with Methanol Equilibrate with Acidified Water Load Diluted Acidified Sample Wash with Acidified Water Wash with Organic On-line Extraction Cartridge Description Part Number Strata-X-CW on-line extraction 00M-S036-B0-CB cartridge, 20 x 2.0 mm Cartridge holder, 20 mm CH0-5845 Unit/Box ea ea Price ) Elute 2x with Acidified Organic COO- Elute 2x with Basified Elution COOH For Large Volume Cleanup/Flash Analysis, use Giga tubes For SPE Vacuum Manifold and Accessories, see p. 33 For 96-Well Plate Vacuum Manifold, see p. 33 For On-Line SPE, see p. 31 The above is a convenient starting point for SPE method development. Further optimization may be required to tailor the method to your specific needs. Phenomenex 27
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