Sample Preparation

Sample size used for extraction

1 gram sub-sample

Bread Crumbs (4) 63 ppb 1.5% RSD
Cereal (4) 217 ppb 1.2% RSD
Coffee (4) 127 ppb 3.9% RSD
Potato Chips (4) 613 ppb 2.7% RSD

4 gram sub-sample

Bread Crumbs (3) 65 ppb 2.6% RSD
Cereal (3) 214 ppb 5.2% RSD
Coffee (3) 115 ppb 0.9% RSD
Potato Chips (3) 597 ppb 4.8% RSD


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