摘要
探讨了分离和测定8种植物生长激素的反相高效液相色谱法。结果表明:以含有0.8%醋酸的甲醇和水作为流动相,采用梯度洗脱,可在16min内将8种物质完全分离并可进行定量测定,线性关系良好。方法具有快速、简便、准确的特点。
In this paper, reversed phase high performance liquid chromatographic technique was used for the separation and determination of eight plant hormones. Methanol water acetic acid system was chosen as the mobile phase. The effects of different separation conditions, such as the methanol and acetic acid concentrations in mobile phase, on the retention behaviours of eight plant hormones in this system were studied. The general trends in retention behaviours could be correlated to the methanol concentration in mobile phase. The experimental results showed that the optimum separation was achieved with following gradient elution condition: 0 3 minutes, 70%(water percentage in mobile phase), 3 13 minutes, 70% 20%, 13 48minutse, 20%. Benzene was added to be as the internal standard. Under this experimental condition, the eight plant hormones could be separated completely and detected quantitatively at 260nm within 16 minutes. The calibration curves for the eitht compounds gave linearity over a wide range. The correlation coefficients of each components were r(ZT)=0.997 1, r(GAs)=0.999 9, r(K)=0.999 7, r(BA)= 0.999 5 , r(IAA)=0.999 8, r(IPA) =0.998 2, r(IBA)= 0.999 5 and r(NAA)=0.999 5. The method is rapid, simple and efficient. It is a suitable method for the accurate determination of gibberellic acid (GA) and alpha naphthaleneacetic acid (α NAA) in products for agricultural use.
出处
《色谱》
CAS
CSCD
北大核心
1998年第5期417-420,共4页
Chinese Journal of Chromatography
关键词
HPLC
植物激素
分离
分析
reversed phase high performance liquid chromatography, plant hormone, separation and detection