NACRW Working Groups

                                                         2020 NACRW Meeting Cancelled!   

All groups meeting virtually until 2021

Contact Group Leaders for information.

Working Groups Move Science Forward at NACRW

 All scientists are welcome to participate.


Next year there will be three NACRW Working Groups meeting Sunday, July 25, 2021  at the  North American Chemical Residue Workshop (NACRW).  See Terms of Reference under "Resources" at the bottom of the page.

· 2:00 - 3:30 pm: Reference Materials Working Group

Develop processes and systems that will improve knowledge on the availability, use and stability of chemical residue reference materials and standard mixes. Identify needs and promote the development of chemical residue reference materials.

· 3:45 - 4:45 pm: Veterinary Drugs Working Group

Identify and recommend multi-residue veterinary drug methods that will meet the needs of government regulators. 

· 5:00 - 6:00 pm: PERFORM Working Group

Develop a process that demonstrates equivalent performance of a user method to the performance required of an Official method.


Residue chemists from all over the world gather at the North American Chemical Residue Workshop to share their work in trace level analyses of pesticides, antibiotics, emerging contaminants and other organic chemicals and metals in foods and environmental matrices. This is an excellent opportunity for scientists to discuss their projects and work together to meet common needs. There is a need for the scientific community to recognize worthy regulatory methods that are not being considered by other standards setting organizations. There is a need for residue chemists to share knowledge of standard mix stability. There is a need for multiple laboratories to work together on collaborative studies, which are too large for a single organization. Working groups are being established to utilize the combined expertise of our members for our mutual benefit. 

 Current Projects include:

· 1st Draft of the  Best Practices for the Use of Multi-Analyte Reference Materials for Small Molecule Analysis 

· 1st Draft of the Performance Criteria for  Multi-Residue Veterinary Drug Methods for Regulatory Use 

·PERFORM guidelines for glyphosate methods

All chemists are invited to participate on working groups. Interested scientists can attend the meetings or participate remotely by contacting working group leaders.