Column Ultisil® ODS-3（4.6×150mm，3.5μm) Mobile Phase Mobile phase A: Take 3.9g of sodium dihydrogen phosphate dihydrate, add it to 1000mL of water, mix well, and adjust the pH to 2.5 with phosphoric acid; take 950mL of the above solution, mix it with 50mL of acetonitrile and shake well, filter it with Read more…
Column Ultisil® SEC-120(7.8×300 mm,5 μm) Mobile Phase Pure Water Detection RID Temperature 35℃ Flow Rate 0.8 mL/min Injection Volume 20 μL If you have any problem or require further information, please contact info@welchmat.com
Column Ultisil® Diol (4.6×250 mm,5 μm) Mobile Phase n-hexane:isopropanol:10% glacial acetic acid=240:300:30 (add triethylamine to every 100ml mobile phase 0.05 mL), mixed with glacial acetic acid to adjust the pH to 5. Detection ELSD drift tube temperature: 90°C air flow: 3.5 bar Temperature 40℃ Flow Rate 1.0 ml/min InjectionVolume 20 Read more…
Column Ultisil® C18（4.6×250mm，5μm） Mobile Phase Methanol/water=98/2 Detection 280nm Temperature 25℃ Flow Rate 1.0 ml/min Injection Volume 20 μL Note It is recommended that the sample tray be controlled at 4°C If you have any problem or require further information, please contact info@welchmat.com
Column Ultisil® Cellu-J (4.6×250 mm,5 μm) Mobile Phase N-heptane: ethanol: diethylamine=98:2:0.1 Detection 240nm Temperature 25℃ Flow Rate 1.0 ml/min Injection Volume 10 μL
Column Ultisil® XB-C18（4.6×250mm，5μm) Mobile Phase Mobile phase A: 1.01g/L sodium heptanesulfonate solution (adjust pH to 2.6 with phosphoric acid) Detection 230nm Temperature 35℃ Flow Rate 1.0 ml/min InjectionVolume 10 μL If you have any problem or require further information, please contact info@welchmat.com
Column Ultisil ® Alk C18（4.6×250mm，5μm) Mobile Phase Water/Acetonitrile/ Acetic acid =81/19/1 Detection 254nm Temperature 30℃ Flow Rate 1 ml/min Injection Volume 10 μL If you have any problem or require further information, please contact info@welchmat.com
Column Ultisil® AQ-C18（4.6×250mm，5μm） Detection 210nm Temperature 35℃ Flow Rate 1.0 ml/min Injection Volume 20 μL Mobile Phase Time (min) 40mm diammonium hydrogen phosphate/methanol=80/20 acetonitrile/methanol=90/10 0 98 2 5 98 2 30 50 50 31 50 2 View PDF If you have any problem or require further information, please contact info@welchmat.com.
Column Ultisil® LP-C18（4.6×300mm，5μm) Mobile Phase 0.025mol/L ammonium acetate solution (weigh 1.925g of ammonium acetate, add 900mL of water to dissolve, adjust pH to 3.95 with glacial acetic acid, dilute to 1000mL with water)-methanol (95:5) Detection 277nm Temperature 35℃ Flow Rate 1.0 ml/min Injection Volume 10 μL If you have any Read more…
Column Ultisil® Cellu-D（4.6×250mm，5μm) Mobile Phase N-hexane/isopropanol=70/30 Detection 220nm Temperature 25℃ Flow Rate 1.0 ml/min Injection Volume 10 μL If you have any problem or require further information, please contact info@welchmat.com.