Sampling resources

Training and Evaluation

Sampling Policies and Procedures

Laboratory Support and Resources

Program Assessment

Program Resources – IT

  • Electronic Laboratory Exchange Network (eLEXNET) is an integrated, secure network that allows multiple government agencies engaged in food safety activities to compare, communicate, and coordinate findings of laboratory analyses. Real-time access to food sample and laboratory analysis data.
  • FoodNET provides a foundation for food safety policy and prevention efforts. It estimates the number of foodborne illnesses, monitors trends in incidence of specific foodborne illnesses over time, attributes illnesses to specific foods and settings, and disseminates this information.
  • PulseNET keeps a cumulative database representing nearly half a million isolates of bacteria from food, the environment, and human foodborne illness.
  • FoodSHIELD provides a secure, web-based platform for regulatory agencies to communicate and share investigation protocols, information and data.

Resources about States and Locals

Additional Sampling Resources

Food and Drug Administration

JAOAC Articles

Considerations for Inference to Decision Units
pp. 288-294(7)
Author: Ramsey, Charles A.

Considerations for Sampling Contaminants in Agricultural Soils
pp. 309-315(7)
Author: Ramsey, Charles A.

Considerations in Sampling of Water
pp. 316-320(5)
Author: Ramsey, Charles A.

Critical Practicalities in Sampling for Mycotoxins in Feed
pp. 301-308(8)
Author: Wagner, Claas

Distributional Assumptions in Food and Feed Commodities—Development of Fit-For-Purpose Sampling Protocols
pp. 295-300(6)
Authors: Paoletti, Claudia; Esbensen, Kim H.

Food and Feed Safety Assessment: The Importance of Proper Sampling
pp. 252-258(7)
Authors: Kuiper, Harry A.; Paoletti, Claudia

Materials Properties: Heterogeneity and Appropriate Sampling Modes
pp. 269-274(6)
Author: Esbensen, Kim H.

QC of Sampling Processes—A First Overview: From Field to Test Portion
pp. 282-287(6)
Authors: Esbensen, Kim H.; Ramsey, Charles A.

Representative Sampling for Food and Feed Materials: A Critical Need for Food/Feed Safety
pp. 249-251(3)
Authors: Esbensen, Kim H.; Paoletti, Claudia; Thiex, Nancy

Sample Quality Criteria
pp. 265-268(4)
Authors: Ramsey, Charles A.; Wagner, Claas

Theory of Sampling: Four Critical Success Factors Before Analysis
pp. 275-281(7)
Authors: Wagner, Claas; Esbensen, Kim H.Towards a Unified Sampling Terminology: Clarifying Misperceptions
pp. 259-263(5)
Authors: Thiex, Nancy; Paoletti, Claudia; Esbensen, Kim H.

Leah S Riter, Chad E Wujcik, (2018)  Novel Two-Stage Fine Milling Enables High-Thoughput Determination of Glyposate Residues in Raw Agricultural Commodities. JAOAC 101(3) 

Lehotay, SJ, Cook, JM.  Sampling and sample processing in pesticide residue analysis.  (2015) Journal of Agriculture and Food Chemistry. 13;63(18):4395-404.  

Maestroni, B., Ghods, A., El-Bidaoui, M., Rathor, N., Jarju, O. P., Ton, T., & Ambrus, A. (2000). Testing the Efficiency and Uncertainty of Sample Processing Using 14C-Labelled Chlorpyrifol: Part I and Part II. Pages 49–72 in Principles and Practices of Method Validation; Fajgelj, A., Ambrus, Ä., eds. Royal Society of Chemistry, Cambridge, United Kingdom.NELAC Requirements for Sampling – Field Sampling and Measurement Organization Sector Volume 1 and General Requirements for Field Sampling and Measurement Organizations, May 1. 2007

https://www.researchgate.net/publication/320266627_Novel_Two-Stage_Fine_Milling_Enables_High-Throughput_Determination_of_Glyphosate_Residues_in_Raw_Agricultural_Commodities

Journal of Agriculture and Food Chemistry.  Lehotay SJ, Cook JM.  Sampling and sample processing in pesticide residue analysis.  2015 May 13;63(18):4395-404.  

Materials Properties: Heterogeneity and Appropriate Sampling Modes
pp. 269-274(6)
Author: Esbensen, Kim H.

NELAC Requirements for Sampling – Field Sampling and Measurement Organization Sector Volume 1 and General Requirements for Field Sampling and Measurement Organizations, May 1. 2007

Partnership for Food Protection (PFP) resources

Peterson, L., Dahl, CK., & Esbensen, KH. (2004). Representative mass reduction in sampling—A critical survey of techniques and hardware. Chemom. Intell. Lab. Syst. 74, 95–114.

Pitard, FF.  Theory of Sampling and Sampling Practice, Third Edition. (2019)

Ramsey, Charles A. (2015) The Decision Unit-A Lot with Objectives.  TOS Forum 5.  https://www.impopen.com/subs/tosf/v15/S05_0031.pdf

Ramsey, Charles A. (2015) The Decision Unit-A Lot with Objectives.  TOS Forum 5.  https://www.impopen.com/subs/tosf/v15/S05_0031.pdf

Ramsey, Charles A.  (2015)  The Role of Inference in Food Safety.  TOS Forum 5.  https://www.impopen.com/subs/tosf/v15/S05_0063.pdf

Ramsey, Charles and Thiex, Nancy.  (2014)  Improved Food and Feed Safety through Systematic Planning and the Theory of Sampling (TOS):  An Introduction to

 “GOODSamples”.  TOS Forum 2.  https://www.impopen.com/subs/tosf/v14/S02_0008.pdf

Sud Sushant, Kamath Archana. (2013)  Methods of Size Reduction and Factors Affecting Size Reduction in Pharmaceutics. Int. Res. J. Pharm. 2013 4(8): 57-64.

TOS Forum.  https://www.impopen.com/tosf

TOS Forum is a free publication for the sampling community, providing a communications platform for all interested in the theory and practice of representative sampling and blending.

USDA Pesticide Data Program Procedures

Other Resources

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