Saltonase ELISA Kit (5 x 96)

For quantitative analysis of residual Saltonase in process samples

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Saltonase ELISA Kit (5 x 96)

Cat no. / ID.   EN32-001

To extend the shelf life of the kit, components are packed in two separate boxes based on their storage requirements: Box 1 is intended for storage at 2–8°C, while Box 2 should be kept at –30 to -15°C. This separation helps maintain the stability and performance of the reagents throughout the kit's intended shelf life.
€3,917.00
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The Saltonase ELISA Kit (5 x 96) is intended for molecular biology applications. This product is neither intended for the diagnosis, prevention or treatment of a disease, nor has it been validated for such use either alone or in combination with other products.

✓ 24/7 automatic processing of online orders

✓ Knowledgeable and professional Product & Technical Support

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Features

  • Highly sensitive and specific using monoclonal antibodies
  • The assay has a broad operating range of 31.25 to 2000 pg/mL, measured at OD450 
  • The detection method is colorimetric
  • Provided in a practical format of 8-well strips 

Product Details

The Saltonase ELISA Kit (5 x 96) is a high-performance assay designed for the quantitative detection of Saltonase endonuclease, including MBG and GMP-grade formats. Engineered for precision, the assay utilizes highly specific monoclonal antibodies to ensure consistent, reliable results with a detection limit of as low as 31.25 pg/mL. 

Optimized for bioprocessing applications, Saltonase is an endonuclease that removes nucleic acids under high-salt and variable pH conditions. In addition, the ELISA kit is ideal for monitoring residual Saltonase levels in in-process samples and verifying its removal in downstream processing and final product.

Each kit includes five pre-coated 96-well microplates in convenient 8-well strip formats and comes with ready-to-use reagents. To extend shelf life and maintain reagent stability, the kit components are packaged in two separate sets. The kit supports a wide quantification range of 31.25–2000 pg/mL and provides sufficient materials for up to 480 measurements.

 

Performance

Caption
Assay characteristics Specification
Sensitivity LOQ: 30 pg/mL
Broad working range 31.25–2000 pg/mL
Specificity

Monoclonal Antibodies used

Low interference from the sample matrix

Accuracy RE +/- 20%
Processing time 240 min
Flexibility 8-well strip plate format

 

Principle

The Saltonase ELISA Kit (5 x 96) utilizes a quantitative sandwich enzyme immunoassay format to ensure high specificity and sensitivity. During the procedure:

  1. Standards or samples are added to the wells, allowing any residual Saltonase to bind to the immobilized capture antibody.
  2. After a wash step to remove unbound material, a biotin-labeled anti-Saltonase antibody (Detection A) is introduced, binding to the captured enzyme.
  3. Following another wash, Streptavidin-Poly-HRP (Detection B) is added. This binds to the biotin-labeled antibody, forming a stable complex.
  4. After a final wash, a substrate solution is added. A color reaction develops in proportion to the amount of Saltonase present in the sample.
  5. The reaction is stopped, and the absorbance is measured using a standard microplate reader.


This precise and reliable method enables accurate quantification of Saltonase across a broad dynamic range, making it ideal for both process development and quality control applications.

 

Procedure

Quality Control

In accordance with the ISO-certified Quality Management System of QIAGEN, each lot of Saltonase ELISA Kit (5 x 96) is tested against predetermined specifications to ensure consistent product quality.

Usage

For optimal performance, users should follow the step-by-step protocol and reagent preparation guidelines outlined in the Saltonase ELISA Kit (5 x 96) Handbook. The assay is designed for ease of use with standard laboratory equipment and includes clear instructions for sample preparation, standard curve generation, and result interpretation.

Before beginning, ensure all reagents are brought to room temperature and that all standards and samples are run in duplicates or triplicates for reliable results.

Please refer to the handbook for complete instructions, reagent handling and troubleshooting recommendations.

 

Applications

Accurate quantification of Saltonase endonuclease, including MBG and GMP-grade variants, in process intermediates and final drug products to confirm complete enzyme clearance, including:

  • Process development support enables monitoring of Saltonase removal during early-stage process optimization, viral vector or vaccine production.
  • Downstream purification control confirms effective enzyme removal post-cell lysis, filtration, chromatography and formulation, ensuring product purity and regulatory compliance.
  • Routine quality control is designed for reproducible, high-throughput testing across large sample sets with an intra‑ and inter-assay precision.

 

Resources

Kit Handbooks (1)
Safety Data Sheets (1)
Certificates of Analysis (1)

FAQ

Why am I getting poor precision between wells or across plates?
Poor precision is often caused by improper washing of the wells. It is essential to ensure that the wash apparatus functions correctly and that all washing steps in the protocol are followed precisely. Bubbles in the wells can also lead to variability; gently tapping the plate can help disperse them before reading. Additionally, scratched wells, caused by pipette tips or wash needles, can affect signal consistency, so care should be taken when dispensing or aspirating reagents. If samples contain visible particles, they should be centrifuged prior to use to remove any interfering debris.
FAQ-4153
What causes a high background signal in the assay?
High background signal is most commonly due to inadequate washing, which allows unbound reagents to remain and contribute to nonspecific signal. Ensure that the wash system removes all residual liquid as instructed in the protocol. It may also be caused by incorrect incubation times or temperatures; extended incubation may lead to excessive color development. If this occurs, reducing the substrate incubation time may help lower background levels.
FAQ-4154
Why am I seeing a weak or no signal in my assay?
Weak or absent signals are frequently the result of pipetting errors, so it is essential to verify that all pipettes are calibrated and are operating correctly. Another common issue is using working solutions that were prepared too far in advance. Detection reagents and substrates should always be prepared fresh, immediately before use. Volumetric inconsistencies may also contribute, so repeating the assay with the exact volumes recommended in the handbook is advised. Lastly, ensure that incubation time and temperature are followed exactly as described in the protocol, as deviations can significantly impact assay performance.
FAQ-4155
Can unused wells from the ELISA plate be reused later?
Yes, the Saltonase ELISA Kit (5 x 96) includes a microplate in an 8-well strip format. Any unused strips can be stored for future use by sealing them back in the original foil pouch with the desiccant and keeping them at the recommended temperature.
FAQ-4156
What are the correct storage conditions for the kit and its reagents?
The Saltonase ELISA Kit (5 x 96) is packaged in two separate boxes according to storage requirements. Box 1 should be stored at 2–8°C, while Box 2 should be kept at –30°C to –15°C. This separation preserves the stability of sensitive components and helps maintain consistent assay performance throughout the kit’s intended shelf life.
FAQ-4157