Mass
MS-NW-8264
1,2,3,4-butanetetracarboxylic acid
C8H10O8 (Mass of molecular ion: 234)
Source Temperature: 190 °C
Sample Temperature: 170 °C
Direct, 75 eV
14.0 1.9
15.0 2.9
16.0 1.0
17.0 12.1
18.0 54.4
19.0 1.1
26.0 12.3
27.0 62.7
28.0 22.5
29.0 34.7
30.0 1.2
31.0 3.6
37.0 2.0
38.0 5.1
39.0 48.4
40.0 5.8
41.0 24.7
42.0 33.4
43.0 53.1
44.0 12.5
45.0 36.5
46.0 1.5
49.0 1.6
50.0 6.3
51.0 9.9
52.0 7.6
53.0 35.0
54.0 100.0
55.0 92.2
56.0 14.9
57.0 48.3
58.0 12.6
60.0 9.4
61.0 1.0
67.0 2.0
68.0 2.4
69.0 11.2
70.0 13.5
71.0 7.1
72.0 6.4
73.0 7.6
79.0 1.2
80.0 10.7
81.0 19.7
82.0 12.0
83.0 3.8
84.0 25.6
85.0 48.1
86.0 2.7
95.0 2.1
96.0 1.1
97.0 10.8
98.0 51.2
99.0 18.7
100.0 28.2
101.0 2.8
102.0 1.4
108.0 76.0
109.0 6.1
110.0 2.0
111.0 1.3
112.0 48.7
113.0 15.3
114.0 1.1
116.0 4.3
117.0 2.7
124.0 1.5
125.0 7.0
126.0 87.6
127.0 9.2
128.0 1.3
138.0 1.1
139.0 3.2
144.0 25.0
145.0 1.7
152.0 10.8
153.0 6.6
154.0 21.0
155.0 1.8
156.0 1.3
170.0 9.0
171.0 1.3
172.0 1.0
181.0 3.8
198.0 1.5
199.0 8.2
217.0 2.8