Column Welch Xtimate® C8（4.6×150mm，5μm) Mobile Phase Methanol / 0.1mol/L Sodium dihydrogen phosphate solution = 85 Detection wavelength 220 nm Column Temperature 30 ℃ Flow Rate 1.0 ml/min Injection Volume 20 μL
Column Welch Xtimate® C18（4.6×250m) Mobile Phase Methanol / 0.1mol/L Sodium dihydrogen phosphate solution = 85 Detection wavelength 290 nm Column Temperature 30 ℃ Flow Rate 1.0 ml/min Injection Volume 20 μL
Column Welch Ultisil® XB-C18（4.6×250m） Mobile Phase 0.1% Sodium octanesulfonate phosphate buffer solution / Acetonitrile = 70/30 Detection wavelength 270nm Column Temperature 30℃ Flow Rate 1.0 ml/min Injection Volume 10 μL
Column Welch Ultisil® Amy-D（4.6×250mm，5μm) Mobile Phase n-hexane/methanol/ethanol/trifluoroacetic acid/triethylamine=90/10/5/0.1/0.1 Detection wavelength 232nm Column Temperature 30℃ Flow Rate 0.7 ml/min Injection Volume 10 μL
Column Xtimate® XB-C18 (4.6×250mm,5μm) tandem Mobile Phase Acetonitrile: Dichloromethane = 60:40 Column Temperature 30℃ Flow Rate 1 mL/min Evaporative Light Scattering Detector Tea oil sample Injection Volume 20 μL
Column Welch WEL-PEG20M（60 m×0.53 mm，1.0 μm)（Item No. : 01918-54003) Injection port 250 ℃ Detector FID 250 ℃ Carrier gas Nitrogen Flow Rate 4.0 mL/min Split ratio 20-1 Hydrogen 32 mL/min Air 200 mL/min Injection Volume 1 μL
Column Welch Ultisil® Amino Acid（4.6×250mm，5μm） Mobile Phase Detection wavelength 254nm Temperature 40℃ Flow Rate 1 ml/min Injection 10 μL
Column Xtimate® SEC-120（7.8×300mm，5μm) Mobile Phase 0.1 M sodium nitrate solution Detection wavelength Differential detector temperature: 30℃ Temperature 30℃ Flow Rate 0.6 mL/min Injection 20 μL
Column Welch Xtimate® C18（4.6×250mm，3μm) Mobile Phase Detection wavelength 361nm Temperature 35℃ Flow Rate 1.1ml/min Injection 20μL
Column Xtimate® C18（4.6×150mm，5μm) Mobile Phase Mobile phase A: 0.01 mol/L Potassium Dihydrogen Phosphate Solution (pH 6.0 adjusted with 2 mol/L Sodium Hydroxide Solution). Mobile phase B: 0.01mol/L potassium dihydrogen phosphate solution (adjusted with 2mol/L sodium hydroxide solution section pH6.0)/acetonitrile=20/80 Detection 230nm Temperature 35℃ Flow Rate 1.0ml/min Injection Volume 20 μL