摘要
建立了高效液相色谱法测定 4 乙基苯甲酸含量的方法。色谱柱为ZorbaxC - 8(4.6mmi.d× 2 50mm 5μ)流动相为甲醇 /磷酸盐缓冲液 (pH =4 .0 ) (V +V =6 0 + 4 0 )在uv2 54nm下用外标法进行测定 ,方法精密度 :0 .2 2 % ,平均回收率 :99 8%
A method was developed for determination of 4 entyl benzoic acid by HPLC. The samples were detected on Zorbax C 8 with methol and phosphate buffer (pH 4.0) as mobil at uv254nm. The results showed te coefficient of variation 0.20%, the recovery rate 99.8%.
出处
《精细化工中间体》
CAS
2001年第3期49-50,共2页
Fine Chemical Intermediates
