After drying and elution the assays showed linearity and precision comparable to clinical assays performed on fresh serum. HBsAg testing after elution had a dynamic range of 0.10 to 1000 Relative ...
THICK blood smears (5–10 µl./cm. 2) can be grouped in the ABO blood group system by an absorptionelution technique which has been evolved in this Laboratory over the past two years.