It is mainly used to quantitatively detect the content of follicle stimulating hormone (FSH) in human serum, plasma and whole blood in vitro.

【Product Name】 Triiodothyronine (T3) Test Kit (Immunofluorescence) 【Package specifications】 25 Tests /Box 【Intended use】 Triiodothyronine (T3) Test Kit (Immunoflurescence) is mainly for the in vitro quantitative determination of Total triiodothyronine content in human serum.Triiodothyronine (T3) is a thyroid hormone that is directly synthesized and secreted by the thyroid and converted from peripheral Thyroxine (T4). Its secretion is regulated by a negative feedback mechanism involving thyroid-pituitary-hypothalamus. For healthy people, the concentration of Triiodothyronine (T3) in the blood is 1/50 of T4, and 99.7% of Triiodothyronine (T3) is combined with Thyroxine-Binding Globulin (TBG) and albumin Such as protein binding exists. Compared withTetraiodothyronine (T4), Triiodothyronine (T3) is quick-acting, and its physiological effect is also several times more than that of T4[1], [2].Thyroid dysfunction can  cause excessive or insufficient T3 secretion. In addition, because thyroid function is directly affected by Thyroid Stimulating Hormone (TSH), the dysfunction of the pituitary gland or hypothalamus will affect the secretion of Triiodothyronine (T3).concentration changes are more sensitive than T4 in certain thyroid diseases, and the blood T3 concentration is more conducive to the identification of hyperthyroidism. Under the conditions of strong thyroid stimulation, T3 levels can also be a good assessment of the body's thyroid hormone reserves [3]. However, when the changes of pregnant women, estrogen and androgens affect the level of TBG, the level of Triiodothyronine (T3) cannot reflect the actual status of the thyroid [4], [5] . At present, the commonly used detection methods in laboratories include enzyme-linked immunoassay, immunofluorescence, colloidal gold and chemiluminescence. 【Accessories required but not provided】 ♢ Immunofluorescence quantitative analyzer ♢ Reagent strip incubator 【Storage and stability】 Sealed: The kit must be stored at 4-30℃, valid for 24 months. The sample diluent must be stored at 4-30℃, valid for 24 months. Opened: The cartridge must be used within 1 hour once its foil pouch is opened. The sample diluent is valid for 1 month once it is opened.

【Product Name】 Thyroxine (T4) Test Kit (Immunofluorescence) 【Package specifications】 25 Tests /Box 【Intended use】 This Thyroxine (T4) Test Kit is manly used for in vitro quantitative determination of total thyroxine (TT4) content in human serum. Thyroxine (T4) is a hormone synthesized and secreted by the thyroid gland, which plays an important role in the regulation mechanism. Thyroxine (T4) is combined with thyroglobulin and stored in the remnant cavity of thyroid follicles, secreted and released under the regulation of thyroid stimulating hormone (TSH), and participates in the circulation [1] . More than 99% of thyroxine (T4) in the serum is in the form of binding to thyroxine-binding globulin (TBG), albumin and other proteins.The concentration of transport protein in the serum is easily affected by exogenous and endogenous effects. Ignoring changes in the concentration of bound protein (such as pregnancy, taking estrogen or suffering from nephrotic syndrome, etc.) will lead to errors in the detection of thyroid metabolism. Results [2], [3]. Diseases in any part of the thyroid-pituitary hypothalamic system can cause excessive (hyperthyroidism) or insufficient (hypothyroidism) secretion of T4 or T3, Therefore, the determination of total thyroxine (T4) can be used for the diagnosis of primary and secondary hypothyroidism and the monitoring of thyroid stimulating hormone (TSH) suppression therapy [4] . At present, the commonly used detection methods in laboratories include enzyme-linked immunoassay, immunofluorescence, colloidal gold and chemiluminescence. 【Accessories required but not provided】 ♢ Immunofluorescence quantitative analyzer ♢ Reagent strip incubator 【Storage and stability】 Sealed: The kit must be stored at 4-30℃, valid for 24 months. The sample diluent must be stored at 4-30℃, valid for 24 months. Opened: The cartridge must be used within 1 hour once its foil pouch is opened. The sample diluent is valid for 1 month once it is opened.