Figure 1
From: Pharmacokinetic analysis of topical tobramycin in equine tears by automated immunoassay
Validation of the tobramycin immunoassay on tear samples: Recovery of tear tobramycin from Schirmer test strips was assessed at four concentrations within the linear range of the immunoassay (0.5 – 10 mg/L) and compared to direct assay of dilute tobramycin solutions. The average recovery was 96.5%. Assays were performed in duplicated and least squares linear regression was used to derive the lines of best fit.