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Custom Reference Standards

AOF/TOF and TOX/AOX

Pre-Packed GAC Columns and Consumables 

Comprehensive solutions for adsorption-based analysis, including AOF (EPA Method 1621), TOX, and AOX workflows.. 


CPI International manufactures pre-packed GAC columns and consumables used in adsorption-based analytical methods for total organic fluorine (AOF), total organic halogens (TOX), and adsorbable organic halogens (AOX).

  • Consistent, low-background adsorption performance
  • Broad compatibility across leading analyzer platforms
  • Reliable supply with shorter lead times
  • Lower cost per test compared to typical market alternatives

Essential consumables. One source. Ready when you are.


356.00 356.0 USD
73.00 73.0 USD
Jumbo Syringe, 1 L
Item number 009920
1,097.00 1097.0 USD
Jumbo Syringe, 0.5 L
Item number 009910
1,096.00 1096.0 USD
713.00 713.0 USD
432.00 432.0 USD
432.00 432.0 USD
DX2000 Type Pyrolysis Tube
Item number 4010-010021
897.00 897.0 USD
115.00 115.0 USD
107.00 107.0 USD
Quartz Pyrolysis Tube DX-2000
Item number 4010-010020
351.00 351.0 USD
Pushrod for Sigma-10
Item number 4010-010051
349.00 349.0 USD
Pyrolysis Tube, Outer, TOX-100
Item number 4010-010130
716.00 716.0 USD
Sample Boat, Quartz (GAC) 1/pk
Item number 659-001
112.00 112.0 USD
Single Pyrolysis Tube
Item number 4010-010049
1,368.00 1368.0 USD
Sodium Thiosulfate 0.01N, Standardized
Choose from 1L, 4L, and 20L volumes. ​
0.0 USD