职业与健康 ›› 2025, Vol. 41 ›› Issue (5): 607-611.

• 论著 • 上一篇    下一篇

顶空固相微萃取-气相色谱法检测野生菌中甲醛的技术研究

赵丽1, 张瑞雨1, 左琪琦2, 段毅宏3, 李彦生3, 刘建辉3   

  1. 1.昆明市疾病预防控制中心理化检验科,云南 昆明 650228;
    2.昆明医科大学公共卫生学院,云南 昆明 650500;
    3.云南省疾病预防控制中心检测中心,云南 昆明 650032
  • 收稿日期:2024-06-01 修回日期:2024-06-14 发布日期:2025-12-17
  • 通信作者: 刘建辉,副主任技师,E-mail:417640514@qq.com
  • 作者简介:赵丽,女,副主任技师,主要从事理化检验工作。
  • 基金资助:
    昆明市卫生科技人才培养项目(2021-SW(省)-30); 昆明市卫生科研项目(2023-12-06-002)

Study on determination of formaldehyde in wild mushroom by headspace solid phase microextraction-gas chromatography method

ZHAO Li1, ZHANG Ruiyu1, ZUO Qiqi2, DUAN Yihong3, LI Yansheng3, LIU Jianhui3   

  1. 1. Physico-Chemical Laboratory,Kunming Center for Disease Control and Prevention,Kunming,Yunnan 650228,China;
    2. School of Public Health,Kunming Medical University,Kunming,Yunnan 650500,China;
    3. Testing Center,Yunnan Center for Disease Control and Prevention,Kunming,Yunnan 650032,China
  • Received:2024-06-01 Revised:2024-06-14 Published:2025-12-17
  • Contact: LIU Jianhui,Deputy chief technician,E-mail:417640514@qq.com

摘要: 目的 建立顶空固相微萃取-气相色谱法快速测定野生菌中甲醛的方法。方法 以顶空固相微萃取(headspace solid phase microextraction,HS-SPME)进行前处理,采用气相色谱-氢火焰离子检测器(gas chromatography-hydrogen flame ion detector,GC-FID)测定。通过比较不同的检测方法,优化萃取纤维涂层种类、平衡时间、萃取时间、萃取温度以及解析温度等影响萃取效率的因素,获得较为理想的检测方法。结果 在给定的条件下,方法线性范围为0.01~4.00 mg/kg,相关系数为0.998~0.999,加标回收率为99.6%~109.7%,相对标准偏差(RSDs)为4.78%~8.24%,在11个野生菌样品中检出甲醛,其浓度范围为0.011~0.293 mg/kg。结论 所建立的方法操作简单,耗时短,灵敏度高,适用于大批量野生菌中甲醛的快速检测。

关键词: 顶空固相微萃取, 气相色谱, 野生菌, 甲醛

Abstract: Objective To establish a method for rapid determination of formaldehyde in wild mushrooms by headspace solid phase microextraction-gas chromatography(HS-SPME-GC). Methods The headspace solid phase microextraction(HS-SPME) was used for the pre-treatment,and gas chromatography-hydrogen flame ion detector(GC-FID) was used for the determination. By comparing different detection methods and optimizing the factors affecting the extraction efficiency such as the extraction fiber coating type,equilibrium time,extraction time,extraction temperature and resolving temperature,a more ideal detection method was obtained. Results Under given conditions,the linear range of the method was 0.01-4.00 mg/kg,the correlation coefficient was 0.998-0.999,the average standard recoveries were 99.6%-109.7%,and the relative standard deviations(RSDs) was 4.78%-8.24%. The formaldehyde was detected in 11 wild mushroom samples,with the concentration range of 0.011-0.293 mg/kg. Conclusion The method is simple in operation,short in time and high in sensitivity,and is suitable for rapid detection of formaldehyde in large quantities of wild mushrooms.

Key words: Headspace solid phase microextraction, Gas chromatography, Wild mushroom, Formaldehyde

中图分类号: