Naphthenes on Rtx-DHA-100 (ASTM D6729-14)

	Peaks	tR (min)	Conc. (wt.%)
1.	Cyclopentane	26.369	9.455
2.	Methylcyclopentane	39.197	5.921
3.	Cyclohexane	45.987	4.773
4.	cis-1,3-Dimethylcyclopentane	51.776	0.300
5.	trans-1,3-Dimethylcyclopentane	52.360	5.799
6.	trans-1,2-Dimethylcyclopentane	52.969	3.653
7.	Methylcyclohexane	59.852	3.677
8.	Ethylcyclopentane	62.671	7.837
9.	ctc-1,2,3-Trimethylcyclopentane	66.286	3.738
10.	trans-1,4-Dimethylcyclohexane	72.135	4.705
11.	1-Ethyl-1-methylcyclopentane	74.704	1.459
12.	trans-1,2-Dimethylcyclohexane	75.128	1.642
13.	ccc-1,2,3-Trimethylcyclopentane	76.092	0.795
14.	Isopropylcyclopentane	77.497	1.305
15.	cis-1,2-Dimethylcyclohexane	80.070	10.276
16.	1,1,4-Trimethylcyclohexane	80.878	6.304
17.	n-Propylcyclopentane	82.052	4.373
18.	ctt-1,2,4-Trimethylcyclohexane	82.052	1.839
19.	ccc-1,3,5-Trimethylcyclohexane	83.885	2.343
20.	ctc-1,2,3-Trimethylcyclohexane	86.992	3.676
21.	ctc-1,2,4-Trimethylcyclohexane	87.211	1.062
22.	1,1,2-Trimethylcyclohexane	87.835	1.842
23.	Isobutylcyclopentane	89.533	1.334
24.	Isobutylcyclohexane	100.336	3.666
25.	tert-1-Methyl-2-N-propylcyclohexane	101.453	4.637
26.	tert-1-Methyl-2(methylpentyl)cyclopentane	114.543	3.592

GC_PC1325

Column	Rtx-DHA-100, 100 m, 0.25 mm ID, 0.50 µm (cat.# 10148)
Sample	DHA naphthenes standard (cat.# 30728)
Injection
Inj. Vol.:	0.2 µL split (split ratio 200:1)
Liner:	Topaz 4.0 mm ID Precision inlet liner w/wool (cat.# 23305)
Inj. Temp.:	250 °C
Oven
Oven Temp.:	0 °C (hold 15 min) to 50 °C at 1 °C/min to 130 °C at 2 °C/min to 270 °C at 4 °C/min
Carrier Gas	He, constant pressure
Linear Velocity:	24 cm/sec @ 35 °C
Detector	FID @ 300 °C
Make-up Gas Flow Rate:	30 mL/min
Make-up Gas Type:	N2
Hydrogen flow:	40 mL/min
Air flow:	370 mL/min
Instrument	Agilent 7890A GC

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