当前位置: 首页 > 文章 > 固相萃取HPLC法测定烟草植株中拌种灵残留量研究 安徽农业科学 2012 (13) 131-132
Position: Home > Articles > Residual Analysis Method of Seedvax in Tobacco Seedlings by HPLC Journal of Anhui Agricultural Sciences 2012 (13) 131-132

固相萃取HPLC法测定烟草植株中拌种灵残留量研究

作  者:
胡奎;赵阳;张旭;李俊凯
单  位:
长江大学农学院
关键词:
拌种灵;残留;高效液相色谱法
摘  要:
[目的]建立一种测定植物中拌种灵残留的HPLC分析方法。[方法]以烟草为供试植物,利用甲醇浸提、固相萃取法净化进行了样品前处理,并在醇∶水=55∶45(V/V)为流动相、流速1.0 ml/min、进样量20μl、紫外检测波长270 nm的条件下采用HPLC法(ODS-C18柱)测定了样品中拌种灵的残留量。[结果]在该条件下,拌种灵的保留时间为7.20 min,峰面积关于标准溶液浓度(0.1~100.0μg/ml)的回归方程为y=71.31x+76.26,相关系数为0.999 9,回收率在90.30%~97.93%,变异系数在1.26%~6.63%。[结论]该方法的回收率、精密度均能完全满足残留分析要求,具有一定的适用性。
译  名:
Residual Analysis Method of Seedvax in Tobacco Seedlings by HPLC
作  者:
HU Kui et al(Agricultural School,Yangtze University,Jingzhou,Hubei 434025)
关键词:
Seedvax;Residue;HPLC
摘  要:
[Objective] The aim was to establish a residue analysis method of seedvax in plants by HPLC.[Method] The tabacco seedlings were extracted with methanol,cleaned with SPE-C18 and separated by ODS-C18 column,and then the residual of seedvax in tabacco seedlings was determined by HPLC under conditions of the mobile phase 55%(V/V) methanol with flow velocity 1.0 ml/min,the sample volume 20 μl and the UV detector wavelenghth 270 nm.[Result] Under the conditions,the reserved time of seedvax was 7.20 min;the peak area showed good linearity with the corresponding concentration standard solution of seedvax within the range of 0.1-100.0 μg/ml(r=0.999 9).The regression calibration curve equation was y=71.31x+76.26.The recovery was from 90.30% to 97.93%,and the coefficient of variation was from 1.26% to 6.63%.[Conclusion] The HPLC analysis method of seedvax residue has good precision and accuracy,so it has certain suitability.

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