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    一直影響質譜實驗的罪魁禍首--容易污染質譜的化合物 (ZT)
    
        
    
        
    
                  總結：*容易污染質譜的化合物
    本列表由Dr.John Langley,University ofSouthampton研究得出，如果您在實驗中出現有些峰一直都洗不掉，不妨在這里找找看，在list里面有沒有影響您實驗的因素呢？

    Contamination Peaks - Positive Ion ES
    m/z Ion Compound
    42 (M+H)+ acetonitrile
    59 (M+NH4)+ acetonitrile
    64 (M+Na)+ acetonitrile
    65 (2M+H)+ methanol
    79 (M+H)+ DMSO
    83 (2M+H)+ acetonitrile
    85 (M+H)+ d6-DMSO
    101 (M+Na)+ DMSO
    102 (M+H)+ triethylamine (TEA)
    104/106 (M+Cu)+ acetonitrile
    105 (2M+Na)+ acetonitrile)
    120 (M+Na+CH3CN)+ DMSO
    122 (M+H)+ Tris
    123 (M+H)+ dimethylaminopyridine (DMAP)
    130 (M+H)+ diisopropylethylamine (DIPEA)
    144 (M+H)+ tripropylamine (TPA)
    145/147 (2M+Cu)+ acetonitrile
    146 (3M+Na)+ acetonitrile
    150 (M+H)+ phenyldiethylamine
    153 (M+H)+ 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU)
    157 (2M+H)+ DMSO
    159 (M+Na)+ sodium trifluoroacetate
    169 (2M+H)+ d6-DMSO
    179 (2M+Na)+ DMSO
    186 (M+H)+ tributylamine
    214 (M+H)+ unidentified contaminant, maybe related to methanol
    225 (M+H)+ dicyclohexyl urea (DCU)
    239/241 [(M.HCl)2-Cl]+ triethylamine
    242 M+ tetrabutylammonium (C4H9)4N+
    243 M+ trityl cation
    257 (3M+H)+ DMSO
    273 M+ monomethoxytrityl cation (MMT)
    279 (M+H)+ dibutylphthalate (plasticiser)
    301 (M+Na)+ dibutylphthalate (plasticiser)
    317 (M+K)+ dibutylphthalate (plasticiser)
    338 (M+H)+ erucamide
    360 (M+Na)+ erucamide
    391 (M+H)+ diisooctyl phthalate (plasticiser)
    413 (M+Na)+ diisooctyl phthalate (plasticiser)
    425 (M+Na)+ unidentified contaminant (plasticiser)
    429 (M+K)+ diisooctyl phthalate (plasticiser)
    449 (2M+H)+ dicyclohexyl urea (DCU)
    454 (M+Na+CH3CN)+ diisooctyl phthalate (plasticiser)
    798 (2M+NH4)+ diisooctyl phthalate (plasticiser)
    803 (2M+Na)+ diisooctyl phthalate (plasticiser)

    文章來源于化工論壇，僅供參考

    查詢關鍵詞：一直影響質譜實驗的罪魁禍首，容易污染質譜的化合物 (ZT)
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