Ambient Ionization-Portable Mass Spectrometry for Rapid On-site Screening of Adulterated Descurainiae Semen in the Traditional Chinese Medicine Plantaginis Semen
Analysis and Testing Summit Forum Call for Papers Column|更新时间:2025-02-12
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Ambient Ionization-Portable Mass Spectrometry for Rapid On-site Screening of Adulterated Descurainiae Semen in the Traditional Chinese Medicine Plantaginis Semen
Journal of Instrumental AnalysisVol. 44, Issue 2, Pages: 221-228(2025)
ZHANG Dan,ZHENG Xiu-qin,SI Zi-hao,WANG Nan,YANG Xi-yue,GU Li-hua,WANG Zheng-tao,LI Lin-nan,YANG Li.Ambient Ionization-Portable Mass Spectrometry for Rapid On-site Screening of Adulterated Descurainiae Semen in the Traditional Chinese Medicine Plantaginis Semen[J].Journal of Instrumental Analysis,2025,44(02):221-228.
ZHANG Dan,ZHENG Xiu-qin,SI Zi-hao,WANG Nan,YANG Xi-yue,GU Li-hua,WANG Zheng-tao,LI Lin-nan,YANG Li.Ambient Ionization-Portable Mass Spectrometry for Rapid On-site Screening of Adulterated Descurainiae Semen in the Traditional Chinese Medicine Plantaginis Semen[J].Journal of Instrumental Analysis,2025,44(02):221-228. DOI: 10.12452/j.fxcsxb.240730264.
Ambient Ionization-Portable Mass Spectrometry for Rapid On-site Screening of Adulterated Descurainiae Semen in the Traditional Chinese Medicine Plantaginis Semen
Adulteration of Chinese medicines not only seriously affects the quality of medicinal materials,but may also lead to poor clinical efficacy and even cause adverse reactions or poisoning. Therefore,it is of great significance to prevent or identify the adulteration of Chinese medicines to ensure the quality and clinical efficacy of medicinal materials. In this paper,we present a method for quickly screening for adulteration of Descurainiae Semen(DS) in Plantaginis Semen(PS) on-site,which utilizes paper capillary spray ionization(PCS) in conjunction with portable mass spectrometer (PMS). Sample powder and extraction spray solvent are added to PCS cartridge. The extraction spray solvent carries the target of sample forward on the paper matrix and thus reaches the tip of the paper matrix where ionisation occurs,and finally enters the cell portable mass spectrometer system for detection. We investigated the effects of extraction spray solvent,secondary mass spectrometry collision energy,injection volume,and electrospray voltage on the response intensity of Sinapine thiocyanate in DS,and finally chose methanol as the extraction spray solvent,an MS collision energy of 1.3 V,an injection size of 23,and an electrospray voltage of 4 500 V for the adulteration identification experiments. In addition,the accuracy of portable mass spectrometry identification was further validated using thin layer chromatography(TLC). The experimental results showed that sinapine thiocyanate in DS was detected when the adulteration ratio of PS to DS was from 1∶1 to 100∶1. The method does not require cumbersome sample handling and can complete the rapid screening of adulterated samples on the spot within 1 minute. This can support the standardization of PS in the market and ensure the safe use of medication by providing scientific evidence.
关键词
便携质谱纸毛细管喷雾电离快速鉴别中药掺伪车前子葶苈子
Keywords
portable mass spectrometrypaper capillary spray ionizationrapid identificationadulteration of traditional Chinese medicinePlantaginis SemenDescurainiae Semen
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