Accurate Vitamin B12 Quantification Made Reliable: Introducing the iElisa-VB12 ELISA Kit from Clover Technology Group

Vitamin B12, also known as cobalamin, stands as the only vitamin containing metallic elements found in nature. Synthesized exclusively by microorganisms and absent in higher plants, this essential nutrient plays an irreplaceable role in supporting red blood cell formation, maintaining neurological function, and preventing pernicious anemia. For food manufacturers, nutrition laboratories, and quality control teams, precise measurement of vitamin B12 content is not merely a regulatory requirement—it is a commitment to consumer health and product integrity.

Addressing this critical analytical need, Clover Technology Group, Inc. presents the iElisa-VB12 Vitamin B12 ELISA Kit (C/N: EE 2131), a high-performance immunoassay solution engineered for accurate, efficient, and cost-effective vitamin B12 quantification across diverse sample matrices.

Scientific Principle: Competitive ELISA for Targeted Detection

The iElisa-VB12 kit operates on the well-established competitive enzyme-linked immunosorbent assay principle, leveraging highly specific antigen-antibody interactions for reliable quantitative results.

Microplate wells are pre-coated with vitamin B12 antigen. When sample extracts or standards are introduced alongside VB12 antibody solution, native vitamin B12 from the sample competes with the immobilized coating antigen for limited antibody binding sites. Following a wash step that removes unbound substances, an enzyme-labeled secondary antibody is added to bind with the captured primary antibodies. After another washing cycle, a chromogenic substrate is introduced, triggering a colorimetric reaction where bound enzyme conjugate transforms the colorless substrate into a blue product. The addition of stop solution shifts the color to yellow, and optical density (OD) is measured at 450 nm. Critically, the OD value is inversely proportional to vitamin B12 concentration in the sample, enabling precise quantification against a calibrated standard curve.

What Sets the iElisa-VB12 Kit Apart

1. Quantitative accuracy across a defined dynamic range — The kit provides five calibrated standards at 0, 0.5, 4.0, 10, and 50 ng/mL, covering typical vitamin B12 concentrations encountered in food and biological testing applications.
   
   
2. Ready-to-use reagents for streamlined workflows — All components are pre-formulated and supplied in working concentrations, including VB12 antibody working solution, enzyme-labeled secondary antibody, 10× concentrated washing buffer, dilution buffer, chromogenic substrate, and stop solution, minimizing hands-on preparation time and reducing pipetting errors.
   
   
3. Standard 96-well plate format — Each kit contains one 96-well microplate configured as 12 detachable strips of 8 wells, allowing flexible batch sizes and compatibility with standard microplate readers found in most analytical laboratories.
   
   
4. Robust immunological specificity — The assay relies on highly selective antibody-antigen recognition, minimizing cross-reactivity with structurally similar compounds and delivering dependable results that laboratories can trust.
   
   

About Clover Technology Group, Inc.

Founded in 2002, Clover Technology Group, Inc. specializes in high-tech analytical products for the food safety and testing industry. Headquartered in New York, U.S.A., the company brings together a team of scientists and technical professionals with deep expertise in analytical chemistry, biochemistry, and immunodiagnostic technology.

Clover Technology Group is dedicated to delivering reliable immunoaffinity columns, ELISA test kits, and rapid test strips for food safety, veterinary drug residue screening, and nutritional component analysis. The company upholds strict raw material sourcing standards, rigorous multi-stage quality inspection protocols, and maintains year-round inventory availability to ensure consistent product performance and timely delivery. Backed by a comprehensive pre-sales, in-sales, and after-sales service system, Clover Technology Group supports laboratories and manufacturers worldwide in meeting their quality assurance objectives.

Ideal Applications

The iElisa-VB12 ELISA Kit is well-suited for quality control laboratories in food and beverage production, dairy processing facilities, nutritional supplement manufacturers, and third-party testing institutions requiring quantitative vitamin B12 analysis. Whether verifying fortified product formulations, monitoring raw material nutritional profiles, or validating label claim compliance, this kit provides a dependable, laboratory-proven testing solution.

For laboratories seeking a balance of accuracy, throughput, and operational simplicity in vitamin B12 determination, the iElisa-VB12 kit from Clover Technology Group delivers consistent performance batch after batch.