分析化学
分析化學
분석화학
CHINESE JOURNAL OF ANALYTICAL CHEMISTRY
2014年
9期
1259-1263
,共5页
刘友江%陈池来%张乐华%张晓天%王泓伟%孔德义
劉友江%陳池來%張樂華%張曉天%王泓偉%孔德義
류우강%진지래%장악화%장효천%왕홍위%공덕의
高场不对称波形离子迁移谱%紫外光电离%化学战剂模拟剂%非线性函数系数
高場不對稱波形離子遷移譜%紫外光電離%化學戰劑模擬劑%非線性函數繫數
고장불대칭파형리자천이보%자외광전리%화학전제모의제%비선성함수계수
High-field asymmetric ion mobility spectrometry%Ultralviolet photoionization%Chemical Warfare Agent Simulants%Nonlinear function coefficients
通过扩散法制得低浓度的对甲基膦酸二甲酯(DMMP)、磷酸三丁酯(TBP)、二甲基亚砜(DMSO)3种化学战剂模拟剂蒸气,并用自制紫外光离子源高场不对称波形离子迁移谱仪( UV-FAIMS)对其进行检测,得到不同样品在不同分离电压下特征谱图,并通过对多组分离电压( DV)和补偿电压( CV)求解,建立了α2和α4二维谱图,提高了FAIMS的分辨识别能力。此外,对UV-FAIMS的检测灵敏度进行了测定。实验表明,此系统对甲基膦酸二甲酯(DMMP)的检测灵敏度优于0.55μg/L。
通過擴散法製得低濃度的對甲基膦痠二甲酯(DMMP)、燐痠三丁酯(TBP)、二甲基亞砜(DMSO)3種化學戰劑模擬劑蒸氣,併用自製紫外光離子源高場不對稱波形離子遷移譜儀( UV-FAIMS)對其進行檢測,得到不同樣品在不同分離電壓下特徵譜圖,併通過對多組分離電壓( DV)和補償電壓( CV)求解,建立瞭α2和α4二維譜圖,提高瞭FAIMS的分辨識彆能力。此外,對UV-FAIMS的檢測靈敏度進行瞭測定。實驗錶明,此繫統對甲基膦痠二甲酯(DMMP)的檢測靈敏度優于0.55μg/L。
통과확산법제득저농도적대갑기련산이갑지(DMMP)、린산삼정지(TBP)、이갑기아풍(DMSO)3충화학전제모의제증기,병용자제자외광리자원고장불대칭파형리자천이보의( UV-FAIMS)대기진행검측,득도불동양품재불동분리전압하특정보도,병통과대다조분리전압( DV)화보상전압( CV)구해,건립료α2화α4이유보도,제고료FAIMS적분변식별능력。차외,대UV-FAIMS적검측령민도진행료측정。실험표명,차계통대갑기련산이갑지(DMMP)적검측령민도우우0.55μg/L。
Accurate diffusion was used to get low concentrations samples, and then the samples were detected by UV photoionization high-field asymmetric ion Mobility spectrometry ( UV-FAIMS ) . The samples were chemical warfare agent simulants ( CWAS) vapor:dimethyl methylphosphonate ( DMMP ) , dimethyl sulfoxide ( DMSO) , tributyl phosphate ( TBP ) and dimethyl sulfoxide ( DMF) . The results of FAIMS spectra data were analyzed by separation of spectra at different dispersion voltage ( DV ) and compensation voltage ( CV ) . A two-dimensional spectrum of α2 and α4 of CWAS was established. It was shown that FAIMS could identify CWAS well and have a good sensitivity. Take DMMP as a example, the detection limit was better than 0. 55 μg/L.