H-E1 (aged voucher material)
(University of New England)
Collection:
A small sample of dried leaf material (~0.02g) was removed from herbarium vouchers maintained at the N.C.W. Beadle Herbarium (University of New England, Armidale) and placed in glass vials containing ~ 1 mL MeOH. Material was left to extract overnight as a minimum (up to 2 days) and sonicated for 80 min. Extracts were filtered and diluted with further MeOH as necessary. Batches were injected into the GC-MS in batches for characterization, or frozen until characterization.
GC–MS:
Agilent GC System 7890A; inert MSD with triple-axis detector 7975C; Agilent HP-5MS column (30 m × 250μm× 0.25μm; He; 50 °C for 0 min, 5 °C/min to 260 °C, hold 2 min). To limit the impact of solvent-related peaks, peaks prior to a retention time of 3.5 min were not considered in analyses.
Analysis:
Spectra were matched to the NIST11 library and a small private Eremophila compound library maintained at the University of New England. The top 10 peaks were selected, and arithmetic (retention) indices (AI) calculated and compared to the NIST Webbook (http://webbook.nist.gov/chemistry/). An annotation was rejected if the AI (+/-2%) did not match published values for nonpolar column data. If the quality match of the spectra to the NIST11 or private library was under 80% the annotation was rejected. Where no published AI was available, a compound was accepted if the quality of the spectra match was 90% or over.
H-E1:97
AI 934
2%
2%
10%
2%
1%
72%
1%
GC: HP-5MS; 30 m × 250μm× 0.25μm; He; 50 °C for 0 min, 5 °C/min to 260 °C, hold 2 min.
H-E1:98
1%
70%
GC: HP-5MS; 30 m × 250μm× 0.25μm; He; 50 °C for 0 min, 5 °C/min to 260 °C, hold 2 min.
H-E1:106
GC: HP-5MS; 30 m × 250μm× 0.25μm; He; 50 °C for 0 min, 5 °C/min to 260 °C, hold 2 min.
H-E1:107
13%
12%
16%
GC: HP-5MS; 30 m × 250μm× 0.25μm; He; 50 °C for 0 min, 5 °C/min to 260 °C, hold 2 min.
H-E1:110
AI 1101
4%
GC: HP-5MS; 30 m × 250μm× 0.25μm; He; 50 °C for 0 min, 5 °C/min to 260 °C, hold 2 min.
H-E1:21
AI 1100
6%
18%
3%
23%
9%
GC: HP-5MS; 30 m × 250μm× 0.25μm; He; 50 °C for 0 min, 5 °C/min to 260 °C, hold 2 min.
H-E1:99
GC: HP-5MS; 30 m × 250μm× 0.25μm; He; 50 °C for 0 min, 5 °C/min to 260 °C, hold 2 min.
H-E1:28
GC: HP-5MS; 30 m × 250μm× 0.25μm; He; 50 °C for 0 min, 5 °C/min to 260 °C, hold 2 min.
H-E1:101
AI 933
10%
0%
1%
19%
45%
GC: HP-5MS; 30 m × 250μm× 0.25μm; He; 50 °C for 0 min, 5 °C/min to 260 °C, hold 2 min.
H-E1:124
AI 947
4%
2%
1%
3%
74%
GC: HP-5MS; 30 m × 250μm× 0.25μm; He; 50 °C for 0 min, 5 °C/min to 260 °C, hold 2 min.
H-E1:111
1%
7%
GC: HP-5MS; 30 m × 250μm× 0.25μm; He; 50 °C for 0 min, 5 °C/min to 260 °C, hold 2 min.
H-E1:33
GC: HP-5MS; 30 m × 250μm× 0.25μm; He; 50 °C for 0 min, 5 °C/min to 260 °C, hold 2 min.
H-E1:112
AI 933
1%
GC: HP-5MS; 30 m × 250μm× 0.25μm; He; 50 °C for 0 min, 5 °C/min to 260 °C, hold 2 min.
H-E1:113
AI 1100
3%
GC: HP-5MS; 30 m × 250μm× 0.25μm; He; 50 °C for 0 min, 5 °C/min to 260 °C, hold 2 min.
H-E1:102
GC: HP-5MS; 30 m × 250μm× 0.25μm; He; 50 °C for 0 min, 5 °C/min to 260 °C, hold 2 min.
H-E1:103
AI 1166
74%
9%
10%
1%
GC: HP-5MS; 30 m × 250μm× 0.25μm; He; 50 °C for 0 min, 5 °C/min to 260 °C, hold 2 min.
H-E1:136
GC: HP-5MS; 30 m × 250μm× 0.25μm; He; 50 °C for 0 min, 5 °C/min to 260 °C, hold 2 min.
H-E1:115
AI 1552
8%
4%
9%
GC: HP-5MS; 30 m × 250μm× 0.25μm; He; 50 °C for 0 min, 5 °C/min to 260 °C, hold 2 min.
H-E1:116
GC: HP-5MS; 30 m × 250μm× 0.25μm; He; 50 °C for 0 min, 5 °C/min to 260 °C, hold 2 min.
H-E1:117
AI 1316
95%
GC: HP-5MS; 30 m × 250μm× 0.25μm; He; 50 °C for 0 min, 5 °C/min to 260 °C, hold 2 min.
H-E1:118
AI 933
2%
3%
31%
26%
5%
GC: HP-5MS; 30 m × 250μm× 0.25μm; He; 50 °C for 0 min, 5 °C/min to 260 °C, hold 2 min.
H-E1:105
GC: HP-5MS; 30 m × 250μm× 0.25μm; He; 50 °C for 0 min, 5 °C/min to 260 °C, hold 2 min.
H-E1:64
3%
1%
GC: HP-5MS; 30 m × 250μm× 0.25μm; He; 50 °C for 0 min, 5 °C/min to 260 °C, hold 2 min.
H-E1:119
AI 1318
3%
GC: HP-5MS; 30 m × 250μm× 0.25μm; He; 50 °C for 0 min, 5 °C/min to 260 °C, hold 2 min.
H-E1:75
GC: HP-5MS; 30 m × 250μm× 0.25μm; He; 50 °C for 0 min, 5 °C/min to 260 °C, hold 2 min.
H-E1:121
AI 2836
57%
GC: HP-5MS; 30 m × 250μm× 0.25μm; He; 50 °C for 0 min, 5 °C/min to 260 °C, hold 2 min.
H-E1:122
1%
4%
72%
GC: HP-5MS; 30 m × 250μm× 0.25μm; He; 50 °C for 0 min, 5 °C/min to 260 °C, hold 2 min.
H-E1:123
AI 1655
19%
GC: HP-5MS; 30 m × 250μm× 0.25μm; He; 50 °C for 0 min, 5 °C/min to 260 °C, hold 2 min.
H-E1:125
AI 933
8%
5%
2%
4%
4%
GC: HP-5MS; 30 m × 250μm× 0.25μm; He; 50 °C for 0 min, 5 °C/min to 260 °C, hold 2 min.
H-E1:126
GC: HP-5MS; 30 m × 250μm× 0.25μm; He; 50 °C for 0 min, 5 °C/min to 260 °C, hold 2 min.
