17B-E
(University of New England)
Collection:
A small sample of leaf material (~0.02g) was collected from plants cultivated at the Australian Arid Lands Botanic Garden (Port Augusta, SA) by staff at the garden. Specimens were immediately placed in glass vials containing a small volume of MeOH and shipped to the lab where they were filtered and MeOH added to make up to ~ 1.5 mL. Specimens were then injected into the GC-MS for 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.
17B-E:127
AI 1422
4%
1%
2%
46%
6%
8%
23%
GC: HP-5MS; 30 m × 250μm× 0.25μm; He; 50 °C for 0 min, 5 °C/min to 260 °C, hold 2 min.
17B-E:128
AI 1484
2%
5%
1%
2%
GC: HP-5MS; 30 m × 250μm× 0.25μm; He; 50 °C for 0 min, 5 °C/min to 260 °C, hold 2 min.
17B-E:110
AI 1422
6%
1%
43%
1%
1%
GC: HP-5MS; 30 m × 250μm× 0.25μm; He; 50 °C for 0 min, 5 °C/min to 260 °C, hold 2 min.
17B-E:112
14%
7%
10%
10%
GC: HP-5MS; 30 m × 250μm× 0.25μm; He; 50 °C for 0 min, 5 °C/min to 260 °C, hold 2 min.
17B-E:129
AI 1499
51%
GC: HP-5MS; 30 m × 250μm× 0.25μm; He; 50 °C for 0 min, 5 °C/min to 260 °C, hold 2 min.
17B-E:113
AI 1927
0%
GC: HP-5MS; 30 m × 250μm× 0.25μm; He; 50 °C for 0 min, 5 °C/min to 260 °C, hold 2 min.
17B-E:116
19%
12%
9%
GC: HP-5MS; 30 m × 250μm× 0.25μm; He; 50 °C for 0 min, 5 °C/min to 260 °C, hold 2 min.
17B-E:118
1%
43%
2%
GC: HP-5MS; 30 m × 250μm× 0.25μm; He; 50 °C for 0 min, 5 °C/min to 260 °C, hold 2 min.
17B-E:130
AI 1499
1%
1%
1%
4%
GC: HP-5MS; 30 m × 250μm× 0.25μm; He; 50 °C for 0 min, 5 °C/min to 260 °C, hold 2 min.
17B-E:131
17%
9%
54%
GC: HP-5MS; 30 m × 250μm× 0.25μm; He; 50 °C for 0 min, 5 °C/min to 260 °C, hold 2 min.
17B-E:120
10%
6%
GC: HP-5MS; 30 m × 250μm× 0.25μm; He; 50 °C for 0 min, 5 °C/min to 260 °C, hold 2 min.
17B-E:121
AI 934
8%
GC: HP-5MS; 30 m × 250μm× 0.25μm; He; 50 °C for 0 min, 5 °C/min to 260 °C, hold 2 min.
17B-E:132
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.
17B-E:122
AI 1422
3%
4%
13%
3%
13%
22%
26%
GC: HP-5MS; 30 m × 250μm× 0.25μm; He; 50 °C for 0 min, 5 °C/min to 260 °C, hold 2 min.
17B-E:135
AI 933
1%
1%
2%
1%
6%
GC: HP-5MS; 30 m × 250μm× 0.25μm; He; 50 °C for 0 min, 5 °C/min to 260 °C, hold 2 min.
17B-E:134
AI 934
2%
16%
2%
1%
2%
54%
2%
2%
GC: HP-5MS; 30 m × 250μm× 0.25μm; He; 50 °C for 0 min, 5 °C/min to 260 °C, hold 2 min.
