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目的建立一种芫荽茎叶中芳樟醇、癸醛、正癸醇和十一醛的GC含量测定方法。方法以挥发油提取器蒸馏制备供试液;HP-5MSI毛细管色谱柱(30 m×0.25 mm,0.25μm),以氮气为载气,FID检测器,采用程序升温,内标法测定(柠檬烯为内标物)含量。结果芳樟醇、癸醛、正癸醇和十一醛进样质量浓度分别在31.5～315.0 mg.L-1(r=0.999 6)、269.0～2 690.0 mg.L-1(r=0.999 7)、95.3～953.0 mg.L-1(r=0.999 6)、58.1～581.0 mg.L-1(r=0.999 7)内呈良好线性关系,平均回收率分别为102.0(RSD=1.5%)、102.0(RSD=0.6%)、101.9(RSD=1.1%)、102.6(RSD=0.9%)。结论所建立的方法可用于芫荽茎叶中4种挥发性成分含量测定。
Objective To establish a GC method for the determination of linalool, decanal, n-decyl alcohol and undecanal in coriander stems and leaves. Methods The sample was prepared by distillation with a volatile oil extractor. HP-5MSI capillary column (30 m × 0.25 mm, 0.25 μm) was charged with nitrogen as carrier gas and FID detector. The content of limonene was determined by internal standard method Standard) content. Results The injection concentrations of linalool, decanal, n-decanol and undecanal were 31.5-315.0 mg.L-1 (r = 0.999 6), 269.0-2 2690.0 mg.L-1 (r = 0.999 7) , 95.3 ~ 953.0 mg.L-1 (r = 0.999 6), 58.1 ~ 581.0 mg.L-1 (r = 0.999 7) .The average recoveries were 102.0 (RSD = 1.5%), 102.0 (RSD = 0.6%), 101.9 (RSD = 1.1%), 102.6 (RSD = 0.9%). Conclusion The established method can be used to determine the content of four volatile components in the stem and leaves of coriander.