Page 98 - 2019年10月第30卷第20期
P. 98
GC-MS/MS法同时测定白芍、黄芪、猫爪草和山茱萸中69种农药
的残留量 Δ
#
*
王 倩 ,朱艳春,李婷婷,樊磊磊,李振国,王雪芹(河南省食品药品检验所,郑州 450003)
中图分类号 R282.2 文献标志码 A 文章编号 1001-0408(2019)20-2829-06
DOI 10.6039/j.issn.1001-0408.2019.20.18
摘 要 目的:建立同时测定白芍、黄芪、猫爪草和山茱萸中69种农药残留量的方法。方法:采用气相色谱-串联质谱法。色谱柱
为HP-5MS弹性石英毛细管柱,进样口温度为240 ℃,进样量为1 μL,不分流进样,载气为高纯氦气,进样口模式为恒压模式,柱前
压力为146 kPa,程序升温;质谱仪为三重四级杆串联质谱仪,离子源为电子轰击源,离子源温度为230 ℃,离子化能量为70 eV,碰
撞气为氮气,质谱传输接口温度为280 ℃,四级杆温度为150 ℃,监测模式为多反应监测(MRM),溶剂延迟时间为5 min。结果:
69种农药残留的检测质量浓度线性范围为4.82~399.6 ng/mL(r均大于0.990);定量限为0.001 7~0.013 3 mg/kg,检出限为0.000 5~
0.004 mg/kg;精密度、稳定性试验的RSD均小于10%(n=6),重复性试验的RSD均小于5%(n=6;仅检出杀虫脒、氯菊酯);加样
回收率为62.9%~123.5%(RSD均小于10%,n=6)。12批样品中,山茱萸中检出敌敌畏、二苯胺,黄芪中检出杀虫脒、氯菊酯,白
芍中检出二苯胺、杀虫脒,猫爪草中检出二苯胺、乙烯菌核利,其他成分均未检出。结论:该方法操作简便、重复性好,可用于同时
测定白芍、黄芪、猫爪草和山茱萸中69种农药的残留量。
关键词 气相色谱-串联质谱法;白芍;黄芪;猫爪草;山茱萸;农药残留量
Determination of 69 Kinds of Pesticide Residues in Paeonia tactilora, Astragalus membranaceus,
Ranunculus ternatus and Cornus officinalis by GC-MS/MS
WANG Qian,ZHU Yanchun,LI Tingting,FAN Leilei,LI Zhenguo,WANG Xueqin(Henan Provincial Institute for
Food and Drug Control,Zhengzhou 450003,China)
ABSTRACT OBJECTIVE:To establish the method for simultaneous determination of 69 kinds of pesticide residues in Paeonia
tactilora,Astragalus membranaceus,Ranunculus ternatus and Cornus officinalis. METHODS:GC-MS/MS method was adopted.
The determination was performed on HP-5MS fused silica capillary column with splitless injecting samples. The injector
temperature was set at 240 ℃,and sample size was 1 μL. The carrier gas was high-purity helium,the inlet mode was constant
pressure,the pre-column pressure was 146 kPa,and the temperature was programmed. Triple four-pole tandem mass spectrometry
was used for the detection,and electron impact ion source was used as ion source. The temperature of the ion source was 230 ℃,
ionization energy was 70 eV,and the collision gas was nitrogen. The inlet temperature was 280 ℃ and four-pole temperature was
150 ℃ ,mass spectrometry monitoring mode was multi-reaction monitoring (MRM),and solvent delay time was 5 min.
RESULTS:The linear range of 69 kinds of pesticide residue was 4.82-399.6 ng/mL(all r>0.990). LODs were all in the range of
0.001 7-0.013 3 mg/kg,and LOQs were all in the range of 0.000 5-0.004 mg/kg. RSDs of precision and stability tests were less
than 10%(n=6). RSD of reproducibility test was lower than 5%(n=6,only pesticide amidine and permethrin were detected).
The recoveries were in the range of 62.9% -123.5%(all RSD<10% ,n=6). Among 12 batches of samples,dichlorvos and
diphenylamine were detected in C. officinalis; chlordimeform and permethrin were detected in A. membranaceus;
diphenylamine and chlordimeform were detected in P. tactilora;diphenylamine and vinclozolin were detected in R. ternatus.
CONCLUSIONS:The method is simple in operation and reproducible for simultaneous determination of 69 kinds of pesticide
residue in P. tactilora,A. membranaceus,R. ternatus and C. officinalis.
KEYWORDS GC-MS/MS;Paeonia tactilora;Astragalus membranaceus;Ranunculus ternatus;Cornus officinalis;Pesticide
residues
中药作为我国传统药物,在预防和治疗疾病方面的 性关节炎、保护内皮细胞、保护神经等作用 [1-2] ;黄芪具有
作用是不可替代的,如白芍具有抗炎、调节免疫、抗类风 增强机体免疫功能、强心、降压、降血糖、利尿、抗衰老、
Δ 基金项目:国家科技重大专项课题(No.2012ZX09304005) 抗肿瘤、抗疲劳、抗病毒等作用;是常用的补中益气、药食
*药师,硕士。研究方向:药物分析。电话:0371-65566283。E- 两用的中药材 [3-4] ,猫爪草具有抗结核、抗肿瘤、抗炎、治
mail:1012299810@qq.com 疗疟疾、增强免疫等作用 [5-6] ;山茱萸具有抗炎、抑菌、调节
# 通信作者:主任药师,硕士。研究方向:药物分析。电话:0371-
65566281。E-mail:244852539@qq.com 免疫、抗衰老、降血糖、抗休克等作用,也是常用中成药
中国药房 2019年第30卷第20期 China Pharmacy 2019 Vol. 30 No. 20 ·2829 ·