ELK High-Sensitivity ELISA Kits Are Now Available

ELK is proud to launch 26 new High-Sensitivity ELISA kits, primarily targeting cytokines, providing superior solutions for detecting low-concentration analytes in cell culture supernatants and other challenging samples.
Our next-generation High-Sensitivity ELISA kits redefine performance with an exceptionally low detection limit, higher accuracy, broader applicability, and outstanding reliability—making them the ideal choice for low-abundance target detection.

1. Exceptionally Low Detection Limit: Measure Trace Amounts with Confidence
Sensitivity: Achieves routine pg/mL detection, with certain kits reaching fg/mL levels.
Performance Gain: Offers 2–10 times higher sensitivity compared to traditional ELISA kits.

2. High Specificity: Minimize False Positives & Interference
Sandwich Assay Design: Utilizes two antibodies targeting different epitopes, ensuring specific binding for signal generation.
High-Quality Antibodies: Employs high-purity, high-affinity monoclonal antibodies for minimal cross-reactivity.
Matrix Tolerance: Delivers robust specificity even in complex matrices like serum, plasma, and cell supernatant.

3. Enhanced Signal Amplification: Powered by Advanced Technology
Multi-Stage Amplification: Combines enzyme catalysis (HRP) with a biotin-avidin system for powerful signal enhancement.
Optimized Substrates: Uses refined substrates (TMB, chemiluminescent) for a superior signal-to-noise ratio.
Streamlined Protocol: Features optimized buffer systems, incubation conditions, and wash steps to significantly reduce non-specific binding.

4. Outstanding Stability & Reproducibility
Low Variability: Intra- and inter-assay CV < 8%.
Excellent Recovery: Consistent recovery rates of 80–120%.
Reliable Performance: Minimal lot-to-lot variation, excellent standard curve linearity, and strong long-term stability.

5. Operational & Throughput Advantages
High-Throughput Ready: 96-well plate format, compatible with automation systems.
Ready-to-Use Convenience: Pre-coated plates and ready-to-use reagents allow immediate start upon arrival.
Easy Identification: Product codes follow our traditional kit numbering system for easy lookup and ordering.