摘要
采用高效液相色谱法对叶面肥中4种植物生长调节剂(脱落酸、烯效唑、氯吡脲和萘乙酸)进行检测。优选的色谱条件为:色谱柱:Symmetry ShieldRP18柱(250mm×4.6mm);流动相:V(乙腈):V(水)(磷酸调至pH3.O)=70:30,等度洗脱;柱温:40℃;进样量:10×L;流速:1.0mL/min;PDA检测器;检测波长为203nm。测定4种植物生长调节剂的含量在2~100mg/L范围内,线性相关系数在0.999以上,回收率为95.7%~103.5%,RSD≤2%(n=8)。本实验所建立的方法能够在同一色谱条件下检测出4种植物生长调节剂的含量,且方法方便快捷、灵敏度高,可满足对化肥中植物生长调节剂测定的实际需求。
Four kinds of plant growth regulators ( abscisic acid, uniconazole, forchlorfenuron and naphthaleneacetic acid) in foliar fertilizer were measured using HPLC.Optimization of chromatographic conditions:chromatographic column:Symmetry Shield RPls ( 250 mm×4.6 mm ) ; mobilephase : acetonitrile-water ( pH 3.0 ) , such as degree of elution ; column temperature : 40℃ ; sample quantity: 10 μL; flow velocity: 1.0 mL/min; PDA detector; detection wavelength: 203 mm. In the content of four kinds of plant growth regulators in 2-100 mg/L range of linear correlation coefficient over 0. 999.The detection limit was 0. 1 mg/L,recovery was 95.7% - 103.5%, RSD ≤ 2% ( n = 8) .This method can detect the content of four plant growth regulators under the same chro- matographic conditions, and it is convenient, quick and sensitive, which can meet the actual demand.
出处
《化学试剂》
CAS
北大核心
2018年第3期231-234,共4页
Chemical Reagents
基金
2016上海市科委科研计划资助项目(16DZ050-2000)
关键词
高效液相色谱法
植物生长调节剂
乙腈
叶面肥
high performance liquid chromatography
plant growth regulator
acetonitrile
foliar fertilizer