Figure 1S 500 nm 200 nm 2 μm. Figure 2S-1 (+)-Mode LDI-MS spectra obtained with a) acridine (M.W. =...
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Transcript of Figure 1S 500 nm 200 nm 2 μm. Figure 2S-1 (+)-Mode LDI-MS spectra obtained with a) acridine (M.W. =...
Figure 1S
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Figure 2S-1
(+)-Mode LDI-MS spectra obtained with a) acridine (M.W. = 179) and b) perdeuterated acridine dissolved in toluene.
[Acridine+H]+
180.1
a)
N
S/N
[Acridine-d9+H]+
189.1
Mass(m/z)
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N
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DD
S/N
Mass(m/z)
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[d-Acridine+H]+
189.1
Mass(m/z)
N
D
D
D
D D
D
D
DDS/ N
Figure 2S-2
a) b)
S/N
Mass(m/z)
[d-Acridine+H]+
189.1
N
D
D
D
D D
D
D
DD
LDI MS spectra were obtained from a) d- acridine dissolved into d-toluene and b) d-acridine dissolved into d-toluene:d-methanol=1:1.
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Supporting Information
Steel NSGNSG with 4-MBA
NSG with11-MUDA
S/N(signal to
noise)279.28 522.65 969.63 1687.17
Standard deviation
9.91 26.52 69.65 56.58
Relative Ratio
1 1.87 3.47 6.85
<Set Information> MW : 179.21g/mol Conc. : 1.11 mg/ml Voltage 20KV 80% grid 50ns delay time 50 shot 1933 Laser Intensity
Steel NSG NSG with 4-MBA
NSG with 11-MUDA
[M+H]+
[M+H]+
[M+H]+
[M+H]+
Mass(m/z)
S/N
Mass(m/z)S/
NMass(m/z)
S/N
Mass(m/z)
S/N
Figure 3S-1
N
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Supporting Information
<Set Information> MW : 123.12g/mol Conc. : 1.27mg/ml Voltage 20KV 80% grid 100ns delay time 50 shot 2457 Laser Intensity
Steel
[M+H]+[M+H]+
[M+H]+
[M+H]+
Mass(m/z)
S/N
Mass(m/z) Mass(m/z)
Mass(m/z)
Figure 3S-2
Steel NSGNSG with 4-MBA
NSG with 11-MUDA
S/N(signal to
noise)130.23 197.76 306.88 544.86
Standard deviation
12.37 18.97 49.28 31.95
Relative Ratio
1 1.52 2.36 4.18
N
N
O
NH2
NSG NSG with 4-MBA
NSG with 11-MUDA
S/N
S/N
S/N
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Supporting Information
<Set Information> MW : 194.19g/mol Conc. : 1.8mg/ml Voltage 20KV 80% grid 100ns delay time 50 shot 2600 Laser Intensity
Steel
[M+H]+
[M+H]+
[M+H]+
[M+H]+
Mass(m/z)
S/N
Mass(m/z)S/
NMass(m/z)
S/N
Mass(m/z)
S/N
Figure 3S-3
Steel NSGNSG with 4-MBA
NSG with 11-MUDA
S/N(singnal to noise)
279.37 694.83 1073.59 1393.70
Standard deviation
9.36 9.30 32.13 104.55
Relative Ratio
1 2.49 3.84 4.99
O N
N
N
NH
O
NSG NSG with 4-MBA
NSG with 11-MUDA
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Supporting Information
<Set Information> MW : 178.23g/mol Conc. : 1.0mg/ml Voltage 20KV 80% grid 100ns delay time 50 shot 2282 Laser Intensity
Steel
M•+
Mass(m/z)
S/N
Mass(m/z) Mass(m/z)
Mass(m/z)
Figure 4S-1
Steel NSGNSG with 4-MBA
NSG with 11-MUDA
S/N(singnal to noise)
1308.58 1893.93 2589.73 2432.90
Standard deviation
66.67 50.65 21.41 75.09
Relative Ratio
1 1.45 1.98 1.86
M•+
M•+
M•+
NSG NSG with 4-MBA
NSG with 11-MUDA
S/N
S/N
S/N
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Supporting Information
<Set Information> MW : 167.21g/mol Conc. : 1.65mg/ml Voltage 20KV 80% grid 10ns delay time 50 shot 1605 Laser Intensity
SteelMass(m/z)
S/N
Mass(m/z) Mass(m/z)
Mass(m/z)
Figure 4S-2
Steel NSGNSG with 4-MBA
NSG with 11-MUDA
S/N(signal to
noise)868.45 1583.13 1216.02 1111.42
Standard deviation
30.60 91.50 0.98 37.09
Relative Ratio
1 1.82 1.40 1.28
M•+
M•+
M•+
M•+
NH
NSG NSG with 4-MBA
NSG with 11-MUDA
S/N
S/N
S/N
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Supporting Information
<Set Information> MW : 143.19g/mol Conc. : 2.4 mg/ml Voltage 20KV 80% grid 100ns delay time 50 shot 2182 Laser Intensity
SteelMass(m/z)
S/N
Mass(m/z) Mass(m/z)
Mass(m/z)
Figure 4S-3
Steel NSGNSG with 4-MBA
NSG with 11-MUDA
S/N(signal to
noise)331.07 902.79 701.19 512.95
Standard deviation
14.90 23.52 18.73 14.52
Relative Ratio
1 2.73 2.12 1.55
M•+
M•+
M•+
M•+
NH2
NSG NSG with 4-MBA
NSG with 11-MUDA
S/N
S/N
S/N
Improvements in (+)-mode LDI MS signal intensities were observed when citric acid and 11-MUDA were used together with a nanostructured gold surface in analyses of (a) acridine, (b) pyrazinecarboxamide, and (c) caffeine. The red and purple bars in (a), (b), and (c) correspond to the NSG surfaces and the NSG surfaces with the 11-MUDA layer and citric acid, respectively.
Supporting InformationFigure 5S-1
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Series1
(a) (b) (c)
S/N
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Supporting Information
<Set Information> MW : 179.12g/mol Conc. : 1.10mg/ml Voltage 20KV 80% grid 10ns delay time 100 shot 1900 Laser Intensity
NSG NSG with 11-MUDA
NSG with 11-MUDA and Citric acid
[M+H]+
[M+H]+
[M+H]+
Mass(m/z)
S/N
Mass(m/z)
S/N
Mass(m/z)
S/N
Figure 5S-2
NSGNSG with 11-MUDA
NSG with 11-MUDA and Citric acid
S/N(signal to
noise)522.65 1687.17 3205.83
Standard de-viation
26.52 56.58 644.86
Relative Ratio 1 3.66 6.13
N
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Supporting Information
<Set Information> MW : 194.19g/mol Conc. : 1.8mg/ml Voltage 20KV 80% grid 100ns delay time 50 shot 2600 Laser Intensity
[M+H]+
[M+H]+
[M+H]+
Mass(m/z)
S/N
Mass(m/z)
S/N
Mass(m/z)
S/N
Figure 5S-3
NSGNSG with 11-MUDA
NSG with 11-MUDA and Citric acid
S/N(singnal to
noise)694.83 1393.70 2031.45
Standard de-viation
9.30 104.55 65.59
Relative Ratio 1 2.01 2.98
O N
N
N
NH
O
NSG NSG with 11-MUDA
NSG with 11-MUDA and Citric acid
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