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题名: Sensitive detection of trimethylamine based on dopant-assisted positive photoionization ion mobility spectrometry
作者: Cheng, Shasha1;  Li, Haitao1;  Jiang, Dandan2;  Chen, Chuang2;  Zhang, Tan1;  Li, Yong1;  Wang, Haitao1;  Zhou, Qinghua3;  Li, Haiyang2;  Tan, Mingqian1
关键词: Dopant-assisted positive photoionization (DAPP) ;  Ion mobility spectrometry (IMS) ;  Biogenic amines ;  Trimethylamine (TMA) ;  Oyster ;  Shrimp
刊名: TALANTA
发表日期: 2017
DOI: 10.1016/j.talanta.2016.10.056
卷: 162, 页:398-402
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Analytical
英文摘要: Biogenic amines are degradation products generated through enzymatic and microbial processes during food spoilage, which may pose a health hazard to consumers at elevated levels. Trimethylamine (TMA) is a good target for the detection of biogenic amines due to its volatility and fishy odor. In this study, we developed a stand-alone dopant-assisted positive photoionization ion mobility spectrometry (DAPP-IMS) for rapid and sensitive detection of TMA. Response of TMA was enhanced by the addition of dopants and characteristic product ions with reduced mobility 2.26 cm(2)V(-1) s(-1) were formed. 2-Butaone was chosen as the dopant for better separation between reagent ion peak and TMA product ion peak as well as higher sensitivity and the limit of detections (LODs) for TMA standard sample was 1 ppb. The potential application of DAAP-IMS was evaluated by the detection of TMA generated by oyster and shrimp during 4 degrees C storage. Analysis of two kinds of seafood showed the same characteristic peak to TMA standard sample, and the intensity of TMA increased over the storage time. The results of this study testify to the potential of DAPP-IMS for qualitative and quantitative determination of TMA in real food samples.
关键词[WOS]: ATMOSPHERIC-PRESSURE PHOTOIONIZATION ;  SOLID-PHASE MICROEXTRACTION ;  BIOGENIC-AMINES ;  MASS-SPECTROMETRY ;  CAPILLARY-ELECTROPHORESIS ;  GAS-CHROMATOGRAPHY ;  BIOELECTRONIC NOSE ;  VOLATILE AMINES ;  FOOD-PRODUCTS ;  N-OXIDE
语种: 英语
WOS记录号: WOS:000389088700053
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/150413
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Dalian Polytech Univ, Sch Food Sci & Technol, Natl Engn Res Ctr Seafood, Dalian 116034, Liaoning, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Liaoning, Peoples R China
3.Zhejiang Univ Technol, Coll Environm, Hangzhou 310014, Zhejiang, Peoples R China

Recommended Citation:
Cheng, Shasha,Li, Haitao,Jiang, Dandan,et al. Sensitive detection of trimethylamine based on dopant-assisted positive photoionization ion mobility spectrometry[J]. TALANTA,2017,162:398-402.
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