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flygh0206

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[资源] 容易污染质谱的化合物

由Dr.John Langley,University of Southampton研究得出
如果有些峰一直都洗不掉，不妨找找看，在list里面有没有

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)

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