第 47 卷第 3 期Vol. 47 No. 3
2017 年 6 月Jun 2017

所属栏目:分析与测试

柱前衍生-液相色谱法测定草铵膦中间体3-(甲基烷氧膦酰基)丙醛
闫燕燕1,张 越1*,张丽荣2,刘荣肖2,次素英2*,左会旭2,贾成国2 (1. 河北科技大学 化工与制药工程学院,河北 石家庄 050018;2. 河北威远生化农药有限公司,河北 石家庄 050031)
摘 要:建立柱前衍生-液相色谱法测定合成的草铵膦关键中间体3-(甲基烷氧膦酰基)丙醛的含量的方法。3-(甲基烷氧膦酰基)丙醛在60℃与2,4-二硝基苯肼(DNPH)衍生反应20 min后,在色谱柱:CLC-ODS C18(150 mm×6.0 mm×5 μm),流速:1.0 mL/min,检测波长:360 nm,流动相:v(甲醇) ∶ v(乙腈) ∶ v(水)=27.5 ∶ 27.5 ∶ 45.0的条件下进行测定,外标法定量。结果表明:该分析方法在0.03~0.30 g/L浓度范围内线性关系良好,加标回收率保持在98.0%~99.3%之间。
关键词:液相色谱法;3-(甲基烷氧膦酰基)丙醛;2,4-二硝基苯肼;衍生
中图分类号:O657.7+2  文献标识码:A  文章编号:1009-9212(2017)03-0072-05
Determination of 3-(Methylalkyloxylphosphonyl)propionaldehyde by Pre-column Derivatization Coupled with HPLC
YAN Yan-yan1, ZHANG Yue1*, ZHANG Li-rong2, IU Rong-xiao2, CI Su-ying2*, ZUO Hui-xu2, JIA Cheng-guo2 (1. School of Chemical and Pharmaceutical Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China; 2. Hebei Veyong Biochemical Co., Ltd., Shijiazhuang 050031, China)
Abstract:A method for determination of 3-(methylalkyloxylphosphonyl) propionaldehyde, a key intermediate for glufosinate ammonium was established by the pre-column derivatization coupled with HPLC. The 3-(methylalkyloxylphosphonyl)propionaldehyde was derivatized using 2,4-Dinitrophenylhydrazine (DNPH) for 20 minutes at 60℃, then separated on the chromatographic column of CLC-ODS C18 (150 mm×6.0 mm×5 μm). The separation conditiona were set as followings: the flow rate was 1.0 mL/min; the detection wavelength was 360 nm; the mobile phase was consisted of methanol, acetonitrile and water(27.5 ∶ 27.5 ∶ 45.0). The results showed that the linear relationship was good in the range of 0.03~0.30 g/L and the recovery rates were 98.0%~99.3%.
Key words:HPLC; 3-(methylalkyloxylphosphonyl) propionaldehyde; 2,4-dinitrophenylhydrazine; derivatization
作者简介:闫燕燕(1991-),女,河北邯郸人,硕士研究生,研究方向:药物的合成与分析(E-mail:18231197372@163.com)。
联 系 人: 张 越,教授,研究方向:药物及中间体合成(E-mail:yuezhang@hebust.edu.cn); 次素英,教授级高工,研究方向:农药和兽药的分析技术研究(E-mail:cisy65@126.com.cn)。
收稿日期: 2017-06-0