PFAS Analysis in Waters

PFAS Analysis in Ground, Surface, & Saline Waters testing available at Analytica

What are PFAS?

Perfluoro-alkyl and polyfluoro-alkyl substances (PFAS) are a family of thousands of synthetic fluorinated organic compounds with multiple C-F bonds. The C-F bond is the shortest and strongest bond in nature, and is responsible for most of the functional characteristics of these compounds.

PFAS have been used in diverse ways for more than 50 years to make products non-stick, water-repellant, and resistant to fire and climatic conditions. They are persistent in the environment and resistant to normal degradation, meaning that PFAS residues are commonly found in soil, sediments, environmental water, and biota. They are considered to have potential adverse effects on environmental and human health.

The best known PFAS compounds are perfluorooctane sulfonate (PFOS), perfluorohexane sulfonate (PFHxS), and perfluorooctanoic acid (PFOA). There are environmental guidelines for PFOS, PFHxS, and PFOA set by the Heads of EPAs Australia and New Zealand (HEPA) in the “PFAS National Environmental Management Plan” (January 2018). 

Method Summary

Analytica’s PFAS method is validated for the determination of 31 PFASs (or 35 compounds if we include mono-branched and di-branched PFHxS and PFOS) in drinking water, fresh water, and waste water. The method may also be applied to soda or sulphur spring water or sea water subject to performance verification. The compounds analysed and their reporting limits (RL) are listed in Table 1 back page of our PFAS in Ground, Surface, & Saline Waters Technical Note.

In Analytica’s method, water samples are prepared using SPE (solid phase extraction), and analysed using LC-MS/MS. The method is based on EPA method 537 (2009), ISO 25101 (2009), and another 2005 published paper on analysis of perfluorinated acid in water and biota. References are available on request.

Method uncertainty is estimated to be approximately 25%.

Quality Control

Our special purpose triplicate container design addresses common contamination issues with PFAS testing through extraction of the entire container. 

Each batch of analysed samples will incorporate a range of laboratory QC samples including: 

  • A blank (Type 1 water)
  • Low and high spke samples into Type 1 water
  • A sample duplicate
  • Low and high spikes into sample duplicates

Samplers are encouraged to consider which QC samples should be collected during the sampling process - we are happy to discuss this further on request.

Contact us for more on PFAS testing

Great Customer Support

Your testing is backed by a team who are available and willing to help.  From queries about logistics and receipt of samples, to technical support around results, we take pride in knowing that our team provide you with great back up whenever you need it.

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A New Approach To Sampling Containers That Saves Time & Space

Analytica’s testing methods take advantage of the best in modern testing equipment and techniques.  This makes it possible to carry out testing using smaller quantities of sample, meaning that there is a smaller amount or weight of sample needed to provide a reliable result.

Taking a design approach to sample containers and shipping containers means that samples can be securely packed for shipping, quickly, saving valuable time in the field.  With the smaller sized samples, shipping containers tend to be smaller and lighter which makes life easier and safer for staff in the field.

Analytica Laboratories


P: +64 7 974 4740

Ruakura Research Centre,
10 Bisley Road, Private Bag 3345,
Hamilton 3240
New Zealand


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