Rather than listing kits alphabetically or by manufacturer, this catalog is structured around two intersecting axes: the species the assay is validated for, and the biomarker class it measures. Researchers typically arrive with one of these variables already fixed — a species constraint set by the study model, or a biomarker constraint set by the research question — so browsing by either axis should narrow results quickly.
The species axis separates kits into human and veterinary/animal groups. Within veterinary research, further distinctions exist between companion animal diagnostics (cats, dogs) and livestock or laboratory animal panels, reflecting the different sample matrices and reference ranges encountered in each setting.
The biomarker axis cuts across species lines. Immunoglobulin panels (IgG subclasses, IgA, IgM, IgE) appear for both human and selected animal applications. Acute phase and inflammatory markers, including CRP and AGP, are represented across species because inflammatory signaling pathways are conserved enough to be clinically and experimentally relevant in multiple models. Renal and metabolic biomarker kits, covering kidney injury markers such as NGAL and broader metabolic protein panels, likewise span both human and veterinary contexts. A specialty category holds novel or less common biomarker kits and custom-expanded panels that do not fit neatly into the other five groups.
Before browsing the category grid below, it is worth deciding which axis matters more for the task at hand. If the study is defined by the animal model, start with the species-level category. If the study is defined by the biomarker pathway, start with the biomarker-level category and filter for the relevant species within it. Either path converges on the same underlying product grid, which supports direct search and pagination across the full catalog.
The four groups below illustrate how different biomarker classes and species map onto the catalog structure. Each links to the category housing related kits rather than to a single isolated product.
Metabolic / Renal-Associated Hormone
EPO assays support research into erythropoiesis regulation and are often reviewed alongside other metabolic protein biomarkers when kidney-related physiology is part of the study design.
View metabolic protein panelsAcute Phase / Companion Animal
Feline C-reactive protein kits sit within the acute phase category, supporting inflammatory marker research in companion animal study designs.
View CRP & AGP panelsRenal Injury / Companion Animal
Canine NGAL kits fall under kidney injury markers, used in research examining early renal stress responses in dog models.
View kidney injury markersImmunoglobulin Subclass / Mouse
Mouse IgG2b subclass kits belong to the immunoglobulin category, relevant to research on antibody subclass distribution and immune response profiling in murine models.
View IgG subclass panelsImmunology, metabolic and specialty kits validated for human sample matrices.
Companion animal, livestock and laboratory animal biomarker panels.
IgG subclass, IgA, IgM and IgE antibody quantification kits.
CRP, AGP and oxidative stress marker panels across species.
Kidney injury markers and metabolic protein biomarker kits.
Novel biomarker kits and custom-expanded research panels.
This diagram describes the generic principle behind sandwich ELISA methodology for educational purposes. It does not describe the protocol of any specific kit; always follow the instructions provided with an individual product.
Serum, plasma or another compatible matrix is collected and prepared according to the sample type required by the assay.
A microplate pre-coated with a capture antibody specific to the target analyte provides the binding surface.
Diluted samples and known-concentration standards are added and incubated, allowing the target analyte to bind the capture antibody.
An enzyme-linked detection antibody binds the captured analyte, forming the antibody-antigen-antibody "sandwich" that gives the method its name.
A substrate solution reacts with the bound enzyme to generate a measurable color change proportional to analyte concentration.
A stop solution halts the reaction, and a microplate reader records optical density at the specified wavelength.
Optical density values are plotted against the standard curve to calculate analyte concentration in each sample.
For a deeper discussion, see sandwich ELISA methodology principles or the methodology overview.
This comparison reflects general category-level patterns, not the specifications of any individual kit. Always confirm species validation and sample requirements on the specific product's documentation.
| Category Group | Typical Species Coverage | Common Sample Types | Primary Research Focus |
|---|---|---|---|
| Human | Human | Serum, plasma, cell culture supernatant | Immunology, metabolic and specialty biomarkers |
| Veterinary / Animal | Dog, cat, livestock, laboratory animal species | Serum, plasma, urine (species-dependent) | Companion animal and livestock diagnostics research |
| Immunoglobulin | Human and select animal species | Serum, plasma | Antibody subclass and immune profiling |
| Acute Phase | Human and veterinary species | Serum, plasma | Inflammatory and oxidative stress markers |
| Renal / Metabolic | Human and veterinary species | Serum, plasma, urine | Kidney injury and metabolic protein research |
| Specialty | Varies by panel | Varies by panel | Novel and custom-expanded biomarker research |
The kits listed in this catalog are drawn from multiple manufacturers rather than a single production line. This breadth reflects how biomarker research is actually conducted: a laboratory studying feline acute phase proteins and a laboratory studying human IgG4 subclasses are unlikely to source assays from the same place, and a catalog built around a narrower supplier base would leave gaps in species or biomarker coverage.
Each kit listing is intended to carry its own documentation, including the manufacturer's datasheet, lot-specific certificate of analysis where applicable, and any species or sample-type restrictions noted by the original developer. This catalog does not substitute for that documentation; it organizes access to it. When evaluating a kit for a specific study, the product's own technical sheet remains the authoritative source for sensitivity, range, cross-reactivity and storage conditions.
Because sourcing spans multiple suppliers, kits within the same category can differ in format, incubation time or detection chemistry even when they measure the same analyte. This is a normal feature of a multi-manufacturer catalog rather than an inconsistency to be resolved. Procurement teams comparing options within a category should expect to review more than one data sheet before selecting a kit, particularly when matching an assay to a specific species or sample matrix used in an existing study protocol.
A practical framework for narrowing kit selection by species constraint and sample matrix before comparing individual products.
See category structureAn overview of how NGAL and cystatin C are used as early indicators of renal stress in veterinary research models.
See kidney injury markersA breakdown of how immunoglobulin subclass assays differ and when each is used in antibody research.
See immunoglobulin kits