PAMS 57 Component Mix on Rtx-1 (105 m)

GC_AR1160

	Peaks	t_R (min)
1.	Ethylene	7.91
2.	Acetylene	8.10
3.	Ethane	8.32
4.	Propylene	11.44
5.	Propane	11.76
6.	Isobutane	16.08
7.	1-Butene	18.01
8.	n-Butane	18.60
9.	trans-2-Butene	19.41
10.	cis-2-Butene	20.41
11.	iso-Pentane	23.79
12.	1-Pentene	24.80
13.	n-Pentane	25.53
14.	Isoprene	25.83
15.	trans-2-Pentene	26.05
16.	cis-2-Pentene	26.54
17.	2,2-Dimethylbutane	27.76
18.	Cyclopentane	29.50
19.	2,3-Dimethylbutane	29.60
20.	2-Methylpentane	29.86

	Peaks	t_R (min)
21.	3-Methylpentane	30.70
22.	1-Hexene	31.04
23.	Bromochloromethane (IS)	31.60
24.	n-Hexane	31.69
25.	Methylcyclopentane	33.30
26.	2,4-Dimethylpentane	33.41
27.	Benzene	34.67
28.	Cyclohexane	35.19
29.	1,4-Difluorobenzene (IS)	35.32
30.	2-Methylhexane	35.44
31.	2,3-Dimethylpentane	35.62
32.	3-Methylhexane	35.93
33.	2,2,4-Trimethylpentane	36.70
34.	n-Heptane	37.17
35.	Methylcyclohexane	38.52
36.	2,3,4-Trimethylpentane	39.88
37.	Toluene	40.22
38.	2-Methylheptane	40.49
39.	3-Methylheptane	40.89
40.	n-Octane	42.09

	Peaks	t_R (min)
41.	Chlorobenzene-d5 (IS)	43.79
42.	Ethylbenzene	44.57
43.	m-Xylene	44.89
44.	p-Xylene	44.93
45.	Styrene	45.62
46.	o-Xylene	45.83
47.	n-Nonane	46.14
48.	4-Bromofluorobenzene*	46.71
49.	Isopropylbenzene	46.96
50.	n-Propylbenzene	47.95
51.	m-Ethyltoluene	48.15
52.	p-Ethyltoluene	48.23
53.	1,3,5-Trimethylbenzene	48.38
54.	o-Ethyltoluene	48.77
55.	n-Decane	49.32
56.	1,2,4-Trimethylbenzene	49.21
57.	1,2,3-Trimethylbenzene	50.07
58.	m-Diethylbenzene	50.67
59.	p-Diethylbenzene	50.87
60.	Undecane	51.89
61.	Dodecane	54.02

*Tuning standard

Oven
Column	Rtx-1, 105 m, 0.25 mm ID, 1.00 µm (cat.# 10159)
	with MXT-Union connector kit (cat.# 21386)
Standard/Sample	Ozone precursor mixture/PAMS (cat.# 34420)
	TO-14A internal standard/tuning mix (cat.# 34408)
Diluent:	Nitrogen
Conc.:	10 ppbv 400 mL injection
Injection	Direct
Oven Temp.:	-45 °C (hold 4 min) to 125 °C at 4.50 °C/min to 250 °C at 9.00 °C/min
Carrier Gas	He, constant flow
Flow Rate:	2.0 mL/min
Linear Velocity:	26 cm/sec @ -45 °C

Detector

MS

Mode:

Scan

Scan Program:

Group	Start Time (min)	Scan Range (amu)	Scan Rate (scans/sec)
1	7.00	26.00-30.00	5.21
2	10.01	26.00-53.50	2.13
3	18.01	39.00-176.00	1.34

Transfer Line Temp.:

270 °C

Analyzer Type:

Quadrupole

Source Type:

Stainless Steel

Drawout Plate:

6mm ID

Source Temp.:

230 °C

Quad Temp.:

150 °C

Electron Energy:

70.0 eV

Solvent Delay Time:

7.00 min

Tune Type:

BFB

Ionization Mode:

EI

Preconcentrator

Nutech 8900DS

Trap 1 Settings

Type/Sorbent :

Siltek-treated glass beads

Cooling temp:

-180 °C

Preheat temp:

5 °C

Preheat time:

0 sec

Desorb temp:

20 °C

Desorb flow:

5 mL/min

Desorb time:

120 sec

Bakeout temp:

200 °C

Flush flow:

120 mL/min

Flush time:

60 sec

Sweep flow:

120 mL/min

Sweep time:

60 sec

Trap 2 Settings

Type/Sorbent:

Tenax GR

Cooling temp:

-45 °C

Desorb temp:

200 °C

Desorb time:

0 sec

Bakeout temp:

175 °C

Bakeout time:

30 sec

Cryofocuser

Cooling temp:

-180 °C

Inject time:

30 sec

Internal Standard

Purge flow:

100 mL/min

Purge time:

6 sec

Vol.:

100 mL

ISTD flow:

100 mL/min

Standard

Size:

400 mL

Purge flow:

100 mL/min

Purge time:

6 sec

Sample flow:

100 mL/min

Instrument

HP6890 GC & 5973 MSD

Acknowledgement

Nutech/EST Analytical

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