广东工业大学学报 ›› 2024, Vol. 41 ›› Issue (05): 66-71.doi: 10.12052/gdutxb.230197

• 环境科学与工程 • 上一篇    下一篇

气相色谱–离子迁移谱检测畜禽有机废物堆肥中的挥发性硫化合物

段腾飞1, 左林子2, 张立新3, 许燕滨1   

  1. 1. 广东工业大学 环境科学与工程学院, 广东 广州 510006;
    2. 广东工业大学 分析测试中心, 广东 广州 510006;
    3. 山东海能科学仪器有限公司, 山东 德州 251500
  • 收稿日期:2023-12-06 出版日期:2024-09-25 发布日期:2024-10-08
  • 通信作者: 左林子(1987-),女,实验师,博士,主要研究方向为有机气相质谱类分析,E-mail:zuolz@gdut.edu.cn
  • 作者简介:段腾飞(1995-),男,硕士研究生,主要研究方向为畜禽养殖固废处理技术,E-mail:1826577375@qq.com
  • 基金资助:
    广东省联合基金重点项目(2019B1515210033)；广州市科技计划项目(202102021066)

Determination of Volatile Sulfur Compounds in Livestock Waste Compost by Gas Chromatography-ion Mobility Spectrometry

Duan Teng-fei1, Zuo Lin-zi2, Zhang Li-xin3, Xu Yan-bin1   

  1. 1. School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006, China;
    2. Analysis and Test Center, Guangdong University of Technology, Guangzhou 510006, China;
    3. Shandong Haineng Scientific Instrument Co. Ltd., Dezhou 251500, China
  • Received:2023-12-06 Online:2024-09-25 Published:2024-10-08

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摘要： 采用气相色谱–离子迁移谱技术，建立了检测畜禽有机废物堆肥中挥发性硫化合物–甲硫醚、乙硫醚、二甲基二硫醚和二硫化碳的方法。样品经除氨后用采气袋收集，经MXT-1气相色谱填充柱分离，采用正、负两种模式，在优化的载气流量和系统温度条件下进行检测。结果表明，4种挥发性硫化合物在各自线性范围内均表现出良好的线性关系(R2>0.99)；检出限为0.008~0.097 mg/m3，回收率为85%~116%，相对标准偏差(Relative Standard Deviation，RSD)为1.13%~8.42%。该方法无需浓缩富集等预处理，仅采用气袋就可完成堆肥恶臭气体的收集，检测灵敏、响应快速，可用于堆肥气体中挥发性硫化合物的现场监测。

关键词: 气相色谱–离子迁移谱, 检测, 挥发性硫化合物

Abstract: A method for determination of volatile sulfur compounds-dimethyl sulfide, diethyl sulfide, dimethyl disulfide, and carbon disulfide in livestock waste compost was established using gas chromatography–ion mobility spectroscopy technology. The sample was collected using a gas sampling bag after ammonia removal, separated on a packed gas chromatography column of MXT-1, and detected in both positive and negative modes under the optimized experimental conditions. The results showed that the four sulfur compounds represented good linearity (R2>0.99) in their respective linear ranges; the detection limits were 0.008~0.097 mg/m3 with recoveries of 85%~116% and relative standard deviation (RSD) of 1.13%~8.42%. The method is free of pretreatment such as pre-concentration or enrichment, sensitive and rapid, and the collection of odorous composting gas can be conducted using a gas sampling bag. The method is sensitive and rapid, which can be used for on-site monitoring of volatile sulfur in compost gas.

Key words: gas chromatography-ion mobility spectrometry, detection, volatile sulfur compounds

中图分类号: 

  • X831
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