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. 2012 Sep 27;131(1):13–25. doi: 10.1093/toxsci/kfs268

TABLE 3 .

Testing of Interfering Substances

Substance tested Concentrations with no interference
Albumin ≤ 50g/l
Acetaminophen ≤ 100mol/l
Aspirin ≤ 1.0 mmol/l
Ascorbic acid ≤ 6.5mg/ml
Bilirubin ≤ 4.0mg/ml
Caffeine ≤ 100mol/l
Glucose ≤ 2mg/ml
Hemoglobin ≤ 100mg/ml
Mercuric chloride ≤ 25mol/l