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【ACE Excel SuperC18色譜柱】高效液相色譜-紫外分光光度法測定內(nèi)酯和羥基酸形式的他汀類藥物
Statins in Lactone and Hydroxy Acid Forms by HPLC-UV
Conditions
Column: ACE Excel 3 SuperC18
Dimensions: 100 x 3.0 mm
Part Number: EXL -1111-1003U
Mobile Phase: A: MeCN
B: 5 mM ammonium acetate pH 4.5 in H2O A/B (I) 73:27 v/v (II) 55:45 v/v
Flow Rate: (I) 0.4 mL/min (II) 0.3 mL/min
Injection: 20 μL
Temperature: 40 °C
Detection: UV, 238 nm
Analytes
1. Simvastatin hydroxy acid
2. 4,4-Dichlorodiphenyl trichloroethane (I.S.)
3. Simvastatin lactone
4. Pravastatin hydroxy acid
5. Griseofulvin (I.S.)
6. Pravastatin lactone
Simvastatin: R1, R2 = CH3
Pravastatin: R1 = OH, R2 = H