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CFSAN/Office of Plant and Dairy Foods and Beverages
July 1999; Updated June 2003
Structure of Pesticide Analyses Files
Note: Only records for analysis type "O" (original) should be used when reviewing or using the analytical results. All other records are quality control data samples.
| Field Order |
Field Name |
Field Description |
| 1 |
MB |
Total Diet Study market basket designation represented by a 3-digit number. The first 2 digits indicate the US government's fiscal year the market basket was collected and the 3rd digit is the sequence collected within the fiscal year. |
| 2 |
Food No |
Number designation of a Total Diet Study food, or '---' for records with Anal Type=B. |
| 3 |
Sample Description |
Name of the Total Diet Study food or "reagent blank" for records with Anal Type=B. |
| 4 |
Anal Type |
Analysis type. O=original analysis; D=duplicate analysis; S=spike; B=reagent blank. |
| 5 |
Residue |
Name of pesticide residue or other analyte. |
| 6 |
Conc |
Concentration; in original or duplicate analysis records (Anal Type=O or D), concentration of analyte found; in spike records (Anal Type=S), amount of analyte added. |
| 7 |
Unit |
Unit of concentration found or spiked. M (ppm) or B (ppb). |
| 8 |
Trace |
Blank, or "T", to indicate that the level found is a trace, i.e., greater than or equal to the limit of detection but less than the limit of quantitation. In most cases where T is in the field, a numeric value also appears in Conc field. |
| 9 |
Recov (%) |
In spike records (Anal Type=S), percentage recovered; otherwise blank. |
| 10 |
Extn |
Three character code representing the extraction-cleanup method used in the analysis.
|
| 11 |
Detn |
Two character code representing the determinative step used in the analysis.
|
