Click on the appropriate m/z value for details of the contaminant peak.
m/z

Ion

Compound
42
(M+H)+

Acetonitrile
Acetonitrile

m/z

Ion

Compound
59
(M+NH4)+

Acetonitrile
Acetonitrile

m/z

Ion

Compound
64
(M+Na)+

Acetonitrile
Acetonitrile
m/z

Ion

Compound
65
(2M+H)+

Methanol
Methanol

m/z

Ion

Compound
79
(M+H)+

Dimethylsulfoxide
Dimethylsulfoxide (DMSO)
m/z

Ion

Compound
83
(2M+H)+

Acetonitrile
Acetonitrile

m/z

Ion

Compound
85
(M+H)+

d6-Dimethylsulfoxide
d6-Dimethylsulfoxide
m/z

Ion

Compound
79
(M+Na)+

Dimethylsulfoxide
Dimethylsulfoxide (DMSO)
m/z

Ion

Compound
79
(M+H)+

Triethylamine
Triethylamine (TEA)
m/z

Ion

Compound
42
(M+Cu)+

Acetonitrile
Acetonitrile

m/z

Ion

Compound
42
(2M+Na)+

Acetonitrile
Acetonitrile

m/z

Ion

Compound
79
(M+Na+CH3CN)+

Dimethylsulfoxide
Dimethylsulfoxide (DMSO)
m/z

Ion

Compound
122
(M+H)+

Tris(hydroxymethyl)aminomethane (TRIS)
Tris(hydroxymethyl)aminomethane (TRIS)

m/z

Ion

Compound
123
(M+H)+

Acetonitrile
Dimethylaminopyridine (DMAP)

m/z

Ion

Compound
130
(M+H)+

Diisopropylethylamine (DIPEA)
Diisopropylethylamine (DIPEA)

m/z

Ion

Compound
144
(M+H)+

Acetonitrile
Tripropylamine (TPA)

m/z

Ion

Compound
42
(2M+Cu)+

Acetonitrile
Acetonitrile

m/z

Ion

Compound
146
(3M+Na)+

Acetonitrile
Acetonitrile

m/z

Ion

Compound
150
(M+H)+

Phenyldiethylamine
Phenyldiethylamine

m/z

Ion

Compound
153
(M+H)+

1,8-diazabicyclo[5,4,0]undec-7-ene (DBU)
1,8-diazabicyclo[5,4,0]undec-7-ene (DBU)
m/z

Ion

Compound
157
(2M+H)+

Dimethylsulfoxide
Dimethylsulfoxide (DMSO)
m/z

Ion

Compound
159
(M+Na)+

Sodium Trifluoroacetate
Sodium Trifluoroacetate
m/z

Ion

Compound
169
(2M+H)+

d6-Dimethylsulfoxide
d6-Dimethylsulfoxide
m/z

Ion

Compound
179
(2M+Na)+

Dimethylsulfoxide
Dimethylsulfoxide (DMSO)
m/z

Ion

Compound
186
(M+H)+

Tributylamine (TBA)
Tributylamine (TBA)
m/z

Ion

Compound
214
(M+H)+

Unknown Contaminant
(Possibly related to Methanol)

m/z

Ion

Compound
225
(M+H)+

Dicyclohexyl Urea (DCU)
Dicyclohexyl Urea (DCU)
m/z

Ion

Compound
239/241
([M.HCl]2- Cl)+

Triethylamine
Triethylamine (TEA)
m/z

Ion

Compound
242
M+

Diisopropylethylamine (DIPEA)
Tributylammonium (TBA)
m/z

Ion

Compound
243
M+

Trityl Cation
Trityl Cation
m/z

Ion

Compound
257
(3M+Na)+

Dimethylsulfoxide
Dimethylsulfoxide (DMSO)
m/z

Ion

Compound
243
M+

Monomethoxytrityl Cation
Monomethoxytrityl Cation
m/z

Ion

Compound
279
(M+H)+

Dibutylphthalate
Dibutylphthalate
(Plasticiser)
m/z

Ion

Compound
338
(M+Na)+

Dibutylphthalate
Dibutylphthalate
(Plasticiser)
m/z

Ion

Compound
304
M+

Dimethoxytrityl Cation
Dimethoxytrityl Cation
m/z

Ion

Compound
338
(M+K)+

Dibutylphthalate
Dibutylphthalate
(Plasticiser)
m/z

Ion

Compound
338
(M+H)+

Erucamide
Erucamide
(Slip agent used in moulding plastics)
m/z

Ion

Compound
360
(M+Na)+

Erucamide
Erucamide
(Slip agent used in moulding plastics)
m/z

Ion

Compound
391
(M+H)+

Diisooctyl Phthalate
Diisooctyl Phthalate
(Plasticiser)

m/z

Ion

Compound
413
(M+Na)+

Diisooctyl Phthalate
Diisooctyl Phthalate
(Plasticiser)

m/z

Ion

Compound
425
(M+Na)+

Unknown Contaminant
(Plasticiser)

m/z

Ion

Compound
429
(M+K)+

Diisooctyl Phthalate
Diisooctyl Phthalate
(Plasticiser)

m/z

Ion

Compound
449
(2M+H)+

Dicyclohexyl Urea (DCU)
Dicyclohexyl Urea (DCU)
m/z

Ion

Compound
798
(M+Na+CH3CN)+

Diisooctyl Phthalate
Diisooctyl Phthalate
(Plasticiser)

m/z

Ion

Compound
798
(2M+NH4)+

Diisooctyl Phthalate
Diisooctyl Phthalate
(Plasticiser)

m/z

Ion

Compound
798
(2M+Na)+

Diisooctyl Phthalate
Diisooctyl Phthalate
(Plasticiser)