摘要
目的:建立了测定氨基酸的在线衍生化方法。方法:以邻苯二甲醛(OPA)和9-芴甲基氯甲酸酯为衍生化试剂,对其氨基酸进行在线衍生化色谱分析。色谱柱:Zorbax Eclipse-AAA氨基酸分析柱(4.6 mm×150 mm,5μm),流动相A为40mmol·L-1Na2HPO4(用8 mol·L-1氢氧化钠溶液调pH 7.8),流动相B为乙腈-甲醇-水(45∶45∶10)梯度洗脱,流速2 mL·min-1,检测波长338,262 nm,柱温40℃。结果:氨基酸浓度在一定范围内,此法可以测定27种氨基酸的含量,但不适合清开灵注射液中氨基酸的含量测定。结论:该方法不能对清开灵注射液中氨基酸进行准确定量。
Objective: To develop a method for determination of amino acids by on-line derivatization.Method: The amino acids were analyzed by HPLC with orthophthalaldehyde(OPA) and 9-formic acid methyl ester of fluorene chlorine(FMOC) on line derivatization.The sample was analyzed on a Zorbax Eclipse-AAA column(4.6 mm×150 mm,5 μm) with gradient elution of 40 mmol·L-1 Na2HPO4(make pH be 7.8 with 8 mol·L-1 NaOH)(A) and acetonitrile-methanol-water(45∶ 45∶ 10)(B) at the flow rate of 2.0 mL·min-1,detected at 338 nm and 262 nm.Result: This method could be used to analyze 27 amino acids in the range of certain concentration,but it wasn't fit for the determination of amino acids in Qingkailing injection.Conclusion: This method couldn't determine amino acids in Qingkailing injection accurately.
出处
《中国实验方剂学杂志》
CAS
北大核心
2012年第15期135-138,共4页
Chinese Journal of Experimental Traditional Medical Formulae
基金
国家"重大新药创制"科技重大专项课题(2010ZX09102)
北京中医药大学自主选题项目