ZHANG Jian-ye, FENG Xiang-dong. Direct Determination of 2 Underivatized Amino Acids in Compound Gancaosuanan Injection by HPLC-ELSD[J]. Chinese journal of experimental traditional medical formulae, 2013, 19(14): 161-163.
ZHANG Jian-ye, FENG Xiang-dong. Direct Determination of 2 Underivatized Amino Acids in Compound Gancaosuanan Injection by HPLC-ELSD[J]. Chinese journal of experimental traditional medical formulae, 2013, 19(14): 161-163. DOI: 10.11653/syfj2013140161.
目的: 用HPLC-ELSD法直接测定复方甘草酸铵注射液中2种未衍生氨基酸的含量。 方法: 使用Agilent-ODS C18(4.6 mm×250 mm
5μm)色谱柱
流动相A(乙腈)-B(5.0 mmol·L-1七氟丁酸的0.7%三氟醋酸溶液)
梯度洗脱(0~5 min
0%A;5~10 min
15%A;10~25 min
35%A)
ELSD漂移管温度80℃
氮气流量2.0 L·min-1
流速0.8 mL·min-1
柱温35℃
进样10 μL。 结果: 甘氨酸进样量在4.858~29.145 μg
盐酸半胱氨酸进样量在0.386~2.316 μg时
其对数值与峰面积对数值线性关系良好
回收率分别为97.43%
96.99%。 结论: 测定方法简便
结果准确
可用于复方甘草酸铵注射液中2种氨基酸的测定。
Abstract
Objective: To determine 2 underivatized amino acids in Compound Gancaosuanan Injection with HPLC-ELSD. Method: The analysis was carried out on a Agilent-ODS C18 (4.6 mm×250 mm
5 μm) column. The mobile phase was acetonitrile (A)-5.0 mmol·L-1 heptafluorobutyric acid in 0.7% trifluoroacetic acid solution (B) in gradient elution mode(0-5 min
0%A;5-10 min
15% A;10-25 min
35%A). Drift tube temperature was 80℃
gas flow rate was 2.0 L·min-1. The flow rate was 0.8 mL·min-1. Column temperature was kept at 35℃ and the inject volume was 10 μL. Result: The glycine and cysteine hydrochloride were linear in the range of 4.858-29.145 μg and 0.386-2.316 μg. The average recovery was 97.43%
96.99% respectively. Conclusion: The method is convenient and accurate
which can be used to determine 2 amino acids in Compound Gancaosuanan Injection.