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Custom Reference Standards

AOF Analysis (EPA Method 1621)

Complete laboratory supplies for accurate adsorbable organic fluorine (AOF) determination.

CPI International supplies laboratory consumables required for running EPA Method 1621, including GAC columns, sample preparation tools, and analytical supplies. These products support accurate adsorbable organic fluorine (AOF) measurement by minimizing contamination risk and enabling consistent, low-level detection.

Designed for Accurate AOF Measurement

EPA Method 1621 requires careful control of background fluorine. Using appropriate consumables helps ensure reliable blank correction and accurate reporting of low-level AOF in aqueous samples.

Key Consumables for EPA Method 1621

  • Pre-packed GAC columns for adsorption
  • Pipettors and tips for sample preparation
  • Reagent water, standards, and method blanks
  • Syringes and fittings for sample transfer


9,568.38 9568.38 USD
Pre-Packed GAC Column for AOF
Item No.: 634-009F
Analytik Jena Type, 4mm x 6mm x 18mm Quartz Glass, 100/pack
249.00 249.0 USD
Pre-Packed GAC Column for AOF
Item No.: 634-004E-F
Euroglas Type, 6mm x 3mm x 47mm, 100/pack
249.00 249.0 USD
Pre-Packed GAC Column for AOF
Item No.: 4010-010031F
Nittoseiko/Mandel (previously Cosa/Mitsubishi®), 9mm x 3mm x 40mm, 100/pack
249.00 249.0 USD
10ml Pipette Tips, 100/pk
Item number P7700-T10M
79.00 79.0 USD
100.80 100.8 USD
180.00 180.0 USD
1,402.00 1402.0 USD
5ml Pipette Tips, 100/pk
Item number P7700-T5M
71.00 71.0 USD
3,338.00 3338.0 USD
Column Joiners 5/pk
Item number 4010-170
79.00 79.0 USD
Fluoride Standard 0.8 µg/mL, 500 mL
Item Number 4400-22224-500
54.00 54.0 USD
Guide Tube, AOX, Euroglass
Item number 4010-68
570.00 570.0 USD
356.00 356.0 USD
Jumbo Syringe, 1 L
Item number 009920
1,097.00 1097.0 USD