Figure1
Separategreater than90 semivolatile compounds in less than18minutes, usinganRxi™-5ms column.
Semivolatiles
Rxi™-5msColumns (fusedsilica)
(Crossbond
®
5% diphenyl / 95% dimethyl polysiloxane)
ID df (µm)
temp. limits
length cat.#
price
0.18mm 0.18 -60 to 330/350°C 20-Meter 13402
$385
0.18mm 0.30 -60 to 330/350°C 20-Meter 13409
$385
0.25mm 0.25 -60 to 330/350°C 30-Meter 13423
$450
0.25mm 0.40 -60 to 330/350°C 30-Meter 13481
$450
Rtx®-5SilMSColumns (fusedsilica)
(Crossbond
®
, selectivity similar to 5% diphenyl/95% dimethyl polysiloxane)
ID df (µm)
temp. limits
length cat.#
price
0.18mm 0.18 -60 to 330/350°C 20-Meter 42702
$380
0.18mm 0.36 -60 to 330/350°C 20-Meter 42704
$380
0.25mm 0.25 -60 to 330/350°C 30-Meter 12723
$470
0.25mm 0.50 -60 to 330/350°C 30-Meter 12738
$470
Semivolatileanalysis isachallengingareacoveringawide rangeof compoundclasses–neutral,acidic,andbasiccompounds, includ-
ing anilines, phenols, PAHs, andmore – that differ in both volatility and reactivity.While the chromatography is complicated by a
broad list of target analytes,manyproblems canbe avoidedbyproper attention to the inlet system and an informed column choice.
Excellent resolutionof benzo(b)&
benzo(k) fluoranthene!
Excellentpeak shape for
earlyelutingcompounds
includingpyridine!
Column:
Rxi
™
-5ms, 30m, 0.25mm ID, 0.25µm (cat.# 13423)
Sample:
US EPAMethod 8270Dmix: 8270MegaMix
™
(cat.# 31850),
Benzoic Acid Standard (cat.# 31879), Benzidine Standard (cat.# 31852), Acid Surrogate
Mix (cat.# 31025), B/NSurrogate StandardMix (cat.# 31887), 1,4-Dioxane (cat.# 31853)
Inj.:
1.0µL, 10ppm each analyte (10ng on column), splitless (hold 0.1min.)
4mmDrilledUniliner
®
inlet liner (hole at bottom) (cat.# 20756)
Instrument:
Agilent 6890
Inj. temp.:
250°C
Carrier gas:
helium, constant flow
Flow rate:
1.2mL/min.
1. 1,4-dioxane
2. N-nitrosodimethylamine
●
3. pyridine
●
4. 2-fluorophenol
5. phenol-d6
6. phenol
●
7. aniline
●
8. bis(2-chloroethyl) ether
●
9. 2-chlorophenol
●
10. 1,3-dichlorobenzene
●
11. 1,4-dichlorobenzene-d4
12. 1,4-dichlorobenzene
●
13. benzyl alcohol
●
14. 1,2-dichlorobenzene
●
15. 2-methylphenol
●
16. bis(2-chloroisopropyl) ether
●
17a. 4-methylphenol
●
17b. 3-methylphenol
●
18. N-nitroso-di-
n
-propylamine
●
19. hexachloroethane
●
20. nitrobenzene-d5
21. nitrobenzene
●
22. isophorone
●
23. 2-nitrophenol
●
24. 2,4-dimethylphenol
●
25. benzoic acid
26. bis(2-chloroethoxy)methane
●
27. 2,4-dichlorophenol
●
28. 1,2,4-trichlorobenzene
●
29. naphthalene-d8
30. naphthalene
●
31. 4-chloroaniline
●
32. hexachlorobutadiene
●
33. 4-chloro-3-methylphenol
●
34. 2-methylnaphthalene
●
35. 1-methylnaphthalene
●
36. hexachlorocyclopentadiene
●
37. 2,4,6-trichlorophenol
●
38. 2,4,5-trichlorophenol
●
39. 2-fluorobiphenyl
40. 2-chloronaphthalene
●
41. 2-nitroaniline
●
42. 1,4-dinitrobenzene
●
43. dimethyl phthalate
●
44. 1,3-dinitrobenzene
●
45. 2,6-dinitrotoluene
●
46. acenaphthylene
●
47. 1,2-dinitrobenzene
●
48. 3-nitroaniline
●
49. acenaphthene-d10
50. acenaphthene
●
51. 2,4-dinitrophenol
●
52. 4-nitrophenol
●
53. dibenzofuran
●
54. 2,4-dinitrotoluene
●
55. 2,3,4,6-tetrachlorophenol
●
56. 2,3,5,6-tetrachlorophenol
●
57. diethyl phthalate
●
58. 4-chlorophenyl phenyl ether
●
59. fluorene
●
60. 4-nitroanaline
●
61. 4,6-dinitro-2-methylphenol
●
62. N-nitrosodiphenylamine
(as diphenylamine)
●
63. 1,2-diphenylhydrazine
(as azobenzene)
●
64. 2,4,6-tribromophenol
65. 4-bromophenyl phenyl ether
●
66. hexachlorobenzene
●
67. pentachlorophenol
●
68. phenanthrene-d10
69. phenanthrene
●
70. anthracene
●
71. carbazole
●
72. di-
n
-butyl phthalate
●
73. fluoranthene
●
74. benzidine
75. pyrene-d10
76. pyrene
●
77.
p
-terphenyl-d14
78. 3,3’-dimethylbenzidine
79. butyl benzyl phthalate
●
80. bis(2-ethylhexyl) adipate
●
81. 3,3’-dichlorobenzidine
82. benzo(a)anthracene
●
83. chrysene-d12
84. chrysene
●
85. bis(2-ethylhexyl) phthalate
●
86. di-
n
-octyl phthalate
●
87. benzo(b)fluoranthene
●
88. benzo(k)fluoranthene
●
89. benzo(a)pyrene
●
90. perylene-d12
●
91. indeno(1,2,3-cd)pyrene
●
92. dibenzo(a,h)anthracene
●
93. benzo(ghi)perylene
●
For complete identifications, pleasevisitwww.restek.com/rxi
GC_EV00823
Oven temp.:
50°C (hold0.5min.) to265°C@25°C/min.,
to330°C@6°C/min. (hold2min.)
Det.:
Agilent 5973GC/MS
Transfer line
temp.:
280°C
Scan range:
35-550 amu
Solvent delay:
2min.
Tune:
DFTPP
Ionization:
EI
●
8270MegaMix
®
components
RecommendedColumns
ToOrder:
800-356-1688, ext. 3
4
