Number of theoretical plates (USP): (N, one of the column efficiency parameters of chromatography (referred to as column efficiency). N depends on the type and nature (particle size, particle size distribution, etc.), filling conditions, column length of the stationary phase, type and flow rate of the mobile phase, and the Read more…
Column Ultisil® Diol (4.6×250 mm,5 μm) Mobile Phase N-hexane:isopropanol:10% glacial acetic acid=240:300:30 (add 0.05 mL oftriethylamine to each 100 mL of mobile phase), add glacial acetic acid aftermixing to adjust pH to 5.2 Detection ELSDDrift Tube Temperature: 90℃Airflow: 3.5 bar Temperature 40℃ Flow Rate 1.0 ml/min Injection Volume 20 μL Read more…
Column Xtimate® C18（4.6×100mm，3μm) Mobile Phase 0.05mol/L potassium dihydrogen phosphate solution(pH=3.0)/methanol/tetrahydrofuran=65/27/8 Detection 237nm Temperature 25℃ Flow Rate 0.9 ml/min Injection Volume 10 μL If you have any problem or require further information, please contact info@welchmat.com.