Silica gel is the adsorbent material for sampling polar hydrocarbons, low molecular weight mercaptans, methanol, amines, and inorganic acids. Treated Silica gel tubes are also used, e.g. 2, 4-dinitrophenylhydrazine for aldehyde sampling, sulphuric acid treated for ammonia.
To select a tube for a specific compound refer to the SKC Sampling Guides or use the SKC online Hazard Database
Sorbent(Coating) |
Size (mm) ODxLength |
Sections |
Sorbent (mg) |
Ends |
Tube Cover |
Separators |
Pack Size |
Part Number |
Glass beads (2,4,6-trichlorophenol) Silica Gel
2 tubes |
7 x 110
8 x 110 |
1
2 |
2 g
520/260 |
GS
GS |
D |
WW
WWW |
20 Sets |
226-125 * |
Silica Gel |
8 x 110 |
2 |
520/260 |
GS |
B |
FWW |
50 |
226-15 |
Silica Gel |
8 x 110 |
2 |
520/260 |
GS |
B |
WWW |
50 |
226-15GWS |
Silica Gel |
10 x 110 |
2 |
1040/260 |
GS |
C |
FWW |
50 |
226-22 |
Silica Gel |
6 x 70 |
2 |
100/50 |
GS |
A |
WWW |
50 |
226-47-01 |
Silica Gel |
7 x 110 |
2 |
150/150 |
GS |
B |
WWW |
50 |
226-48 |
Silica Gel |
6 x 70 |
2 |
100/50 |
GS |
A |
FWW |
50 |
226-51 |
Silica Gel |
6 x 70 |
2 |
150/75 |
GS |
A |
FWW |
50 |
226-10 |
Silica Gel |
8 x 110 |
2 |
300/150 |
GS |
B |
WWW |
50 |
226-10-04 |
Silica Gel (Hydrochloric acid) |
10 x 150 |
3 |
700/150 /150 |
GS |
C |
WWWW |
20 |
226-176 |
Silica Gel (Mercuric acid) |
6 x 110 |
2 |
150/300 |
GS |
B |
WWW |
20 |
226-165A • |
Silica Gel (o-phenylenediamine) |
8 x 110 |
2 |
520/260 |
GS |
B |
WWW |
50 |
226-191 |
Silica Gel (p-methoxyphenol) |
8 x 150 |
2 |
1200/600 |
GS |
C |
WWW |
10 |
226-70A • |
Silica Gel (silver nitrate)/glass fibre filter (sodium carbonate/glycerol) |
16 to 8 x 85 |
2 |
200/200 |
GO |
- |
TTTWW |
5 |
226-177 |
Silica Gel (sodium hydroxide) |
7 x 70 |
2 |
150/75 |
GS |
B |
WWW |
20 |
226-55 * |
Silica Gel (specially cleaned) |
7 x 110 |
2 |
400/200 |
GS |
B |
WWGW |
50 |
226-10-03 |
Silica Gel (specially washed and baked)/Glass fibre filter 2 Tubes |
7 x 110
7 x 110 |
1
1 |
600
600 |
GS |
D |
WGW
WGW |
20 Sets |
226-183 |
Silica Gel (sulphuric acid) |
6 x 70 |
2 |
200/100 |
GS |
A |
WWW |
50 |
226-10-06 * |
Silica Gel (sulphuric acid) |
6 x 70 |
2 |
150/75 |
GS |
A |
WWW |
50 |
226-53 * |
Silica Gel (sulphuric acid) |
8 x 110 |
2 |
200/200 |
GS |
B |
WWW |
50 |
226-42 * |
Silica Gel treated (methyl p-tolylsulphoxide (MTSO)) |
7 x 110 |
1 |
800 |
GS |
B |
WW |
20 |
226-193-UC |
Silica Gel treated (methyl p-tolylsulphoxide (MTSO)) |
8 x 110 |
2 |
800/200 |
GS |
B |
WGW |
20 |
226-199-UC |
Silica Gel with ultra-low background (2, 4-dinitrophenylhydrazine) |
6 x 110 |
2 |
300/150 |
GS |
B |
WWW |
20 100 |
226-119 • 226-119A • |
Silica Gel with ultra-low background (2, 4-dinitrophenylhydrazine) |
7 x 110 |
2 |
300/150 |
GS |
B |
WWW |
20 |
226-119-7 |
Silica Gel with ultra-low background (2, 4-dinitrophenylhydrazine) |
10 x 110 |
2 |
800/200 |
GS |
C |
WWW |
20 |
226-188 |
Silica Gel with ultra-low background (2, 4-dinitrophenylhydrazine) with built-in ozone scrubber |
8 x 115 |
3 |
150/300/1500 |
GS |
D |
WWWW |
20 |
226-120 |
Silica Gel/Charcoal (sodium hydroxide) |
10 x 210 |
3 |
750/1250/250 |
GS |
D |
WRWW |
20 |
226-61A * |
Silica Gel/Charcoal (sodium hydroxide) |
10 x 210 |
3 |
750/1250/250 |
GS |
D |
WWRW |
50 |
226-61 * |
Silica Gel/Glass Fibre Filter (OVS) |
13 to 8 x 75 |
2 |
520/260 |
GO |
V |
FFGT |
10 |
226-99 * |
Table Notes:
* Limited shelf-life; contact SKC for more information
‡ Tubes are chemically conditioned before shipping; use within 30 days or recondition. Restocking fee applies.
§ Each tube has a flow direction arrow and unique number.
• Limited shelf-life; refrigerator/freezer storage may be required. Contact SKC for more information.
† Anasorb GCB1 is equivalent to Carbopack B; Anasorb GCB2 is equivalent to Carbopack C
Tube Ends:
GS: Glass Sealed
GO: Glass Open
SS: Stainless Steel Open
Protective Tube Covers:
A: 6 mm OD x 70 mm length
B: 8 mm OD x 110 mm length
C: 10 mm OD x 150 mm length
D: 10 mm OD x 220 mm length and shorter tubes
P: Low-volume PUF Tube Holder - Do not use an adjustable low flow holder
V: OVS Tube Holder - Do not use an adjustable low flow holder
Separators:
W: Glass Wool
G: Glass Fibre Filter
F: Foam
N: Nylon Ring
Q: Quartz Filter
R: Glass Spacer
S: Screen
T: PTFE Ring
Sorbent Equivalencies:
Anasorb 708 is equivalent to Chromosorb 108.
Anasorb 727 is equivalent to Chromosorb 106.
Anasorb 747 is an SKC proprietary sorbent.
Anasorb C300 is equivalent to Hydrar, Carulite.
Anasorb CSC is an SKC proprietary sorbent.
Anasorb GCB1 is equivalent to Carbotrap B (20/40), Carbopack B (60/80).
Trademarks:
Anasorb ® — SKC Inc
Chromosorb ® — Manville Corp.
Porapak ® — Waters Associates, Inc.
Tenax ® — Buchem B.V.
XAD ® — Rohm & Haas