Human Spondin 1 ELISA Kit is a sandwich ELISA kit for use with Serum, plasma and other biological fluids. This assay has high sensitivity and excellent specificity for detection of Spondin 1 (SPON1). No significant cross-reactivity or interference between Spondin 1 (SPON1) and analogues was observed. Please note that this kit is also available as a CLIA Kit. Quantitative Colorimetric Sandwich ELISA. Sample Types: serum, plasma and other biological fluids. Range: 0.625 ng/ml - 40 ng/ml. Sensitivity: < 0.235 ng/ml