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IVD (In Vitro Diagnostic) FT3 assay reagents are used for the quantitative determination of free triiodothyronine (FT3) in human serum or plasma to assess thyroid function, commonly using electrochemiluminescence (ECLIA) or competitive immunoassay techniques. These reagents are designed for use with automated analyzers, such as the Elecsys or cobas e systems, to aid in diagnosing conditions like hyperthyroidism.
Key Aspects of IVD FT3 Reagents
- Methodology: Primarily competitive immunoassay, including ECLIA, CLIA (chemiluminescent immunoassay), or RIA (radioimmunoassay).
- Principle: The assays measure the amount of free T3, which is independent of binding protein concentration changes (e.g., TBG, albumin).
- Application: Used for evaluating hyperthyroidism, hypothyroidism, and monitoring hormone replacement therapy.
- Components: Kits usually include labeled anti-T3 antibodies, biotinylated T3, and streptavidin-coated microparticles.
- Sample Type: Human serum or plasma.
Major Manufacturers & Systems
- Roche Diagnostics (Elecsys/cobas)
- Sysmex (HISCL)
- Cormay Diagnostics (AURYX)
- Epitope Diagnostics (CLIA Kit)
- Delta Ltd (CLIA)
- Poclight Biotechnology (POCT analyzer)
Performance Features
- Calibration: Often requires calibration once per reagent lot using specialized calibrators (e.g., CalSet).
- Stability: Kits generally offer 12 months stability in unopened, refrigerated conditions, with controls often needing to be run every 24 hours.
- Interference: High biotin levels can interfere with streptavidin-biotin technology, affecting results.
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IVD use FT3 assay reagent
Nanjing Poclight Biotechnology Co., Ltd
https://www.poclightbio.com › ivd-use-ft3-assay-reagent...
Nanjing Poclight Biotechnology Co., Ltd
https://www.poclightbio.com › ivd-use-ft3-assay-reagent...
Poclightbio.com sells IVD use FT3 assay reagent at the ex-factory price.We are the best IVD use FT3 assay reagent supplier.Welcome to buy poct analyzer and ...
Elecsys® FT3 III, FT3 - free triiodothyronine
Roche Diagnostics
https://diagnostics.roche.com › products › lab › elecsys-...
Roche Diagnostics
https://diagnostics.roche.com › products › lab › elecsys-...
IVD For in vitro diagnostic use. Elecsys ... This analyzer is designed for clinical immunological test analysis using water-soluble samples and reagents.Read more
FT3 (AURYX 90 FT3 Reagent Kit)
Cormay Diagnostics
https://cormaydiagnostics.com › products › reagents-1
Cormay Diagnostics
https://cormaydiagnostics.com › products › reagents-1
The AURYX 90 FT3 reagent is electrochemiluminescent immunoassay (ECLIA) for in vitro quantitative determination of free triiodothyronine in human serum and ...Read more
HISCLTM FT3 Assay Kit
Sysmex Asia Pacific
https://www.sysmex-ap.com › uploads › 2024/11
Sysmex Asia Pacific
https://www.sysmex-ap.com › uploads › 2024/11
PDF
Identification of the IVD reagent. HISCLTM FT3 Assay Kit. Intended use. For In Vitro Diagnostic Use. Measurement of free triiodothyronine in serum or plasma.Read more
2 pages
Assay of Thyroid Hormone and Related Substances - NCBI
National Institutes of Health (.gov)
https://www.ncbi.nlm.nih.gov › books › NBK279113
National Institutes of Health (.gov)
https://www.ncbi.nlm.nih.gov › books › NBK279113
by CA Spencer2025Cited by 127 — Currently, most free hormone testing is made using automated FT4 and FT3 immunoassays (62,131). These immunoassays are based on “one-step ...Read more
FT3 ELISA
DiaMetra
https://diametra.com › Products
DiaMetra
https://diametra.com › Products
Immunoenzymatic colorimetric method for the quantitative determination of free triiodothyronine (FT3) concentration in human serum and plasma.Read more
DRG Triiodothyronine (T-3) Free ELISA (EIA-2385) ...
セティ株式会社
https://www.sceti.co.jp › images › psearch › pdf
セティ株式会社
https://www.sceti.co.jp › images › psearch › pdf
PDF
Dec 14, 2009 — The prepared H2O2/TMB reagent should be made at least 15 minutes before use and is stable at room temperature in the dark for up to 3 hours.Read more
7 pages
Bioeast Biotech - One-stop Supplier of IVD Raw Materials
Bioeast Biotech
https://en.bioeast.com › newsdetail
Bioeast Biotech
https://en.bioeast.com › newsdetail
Jan 10, 2024 — It has been validated that Bioeast's T3 raw materials have good precision and correlation with the Reference Kit in FT3 project testing.Read more
fT3
CMC – Consultant Medical Company
https://cmcpal.com › site › 1678873796.54015.pdf
CMC – Consultant Medical Company
https://cmcpal.com › site › 1678873796.54015.pdf
PDF
P2: Do not use reagents that could be contaminated or look or smell different than usual. P3: Record [CAL], specimens and controls carefully on the spread sheet.Read more
Full article: Free thyroxine measurement in clinical practice
Taylor & Francis Online
https://www.tandfonline.com › ... › Volume 60, Issue 2
Taylor & Francis Online
https://www.tandfonline.com › ... › Volume 60, Issue 2
by F D’Aurizio2023Cited by 29 — FT4 measurement is integral in both the diagnosis and management of relevant central dysfunctions (central hypothyroidism and central hyperthyroidism)Read more