Mouse Chymotrypsin C/Elastase 4 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 Chymotrypsin C/Elastase 4 (CTRC/ELA4). No significant cross-reactivity or interference between Elastase 4 (ELA4) 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: 0.781 ng/ml - 50 ng/ml. Sensitivity: < 0.34 ng/ml