Semen Euphorbiae Lathyridis (English) Caper Euphorbia Seed Alias ​​small croton, followed by children. The source is the seed of Euphorbia lathyris L., the sequel of the Euphorbiaceae. Botanical form of biennial herb, with milk, the whole plant was white powder. Stems erect, cylindrical. The stems are densely denuded, linearly lanceolate, upper leaves opposite, broadly lanceolate, apex acuminate, base subcordate. The total inflorescences terminal, umbrella-shaped, umbrella stems 2 to 4, the base has 2 to 4 impellers born; each stem re-forked branches, with triangular-shaped oval sepals 2, each fork 1 cup-like umbrella Inflorescence; involucre cup-shaped, apex 4-to-5-lobed, glands 4, crescent-shaped. Capsule spherical. Flowering from June to July and fruiting from August. Born on sunny slopes; mostly cultivated. The main production Henan, Zhejiang. After harvesting mature seeds in autumn, the plants are cut, seeds are placed, impurities are removed, and dried. Traits are oval or oval, 3 to 4 mm long and 2 to 4 mm in diameter. The surface is gray-brown, with wrinkles on the mesh, and the wrinkles are dark gray and black, forming fine spots with a divergent ridge on one side, a rounded microprojection at the top, and a white ridge-like ridge at the base. Spicy. Chemical composition containing ingenol 3-hexadecanoate, 7-hydroxylathyrol, gamma-euphol, alpha-ammonium Alpha-euphorbol, aesculetin, aesculin, euphorbiasteroid, daphnetin, kaempferol, kaempferol -3-glucuronide) and so on. Taste is warm and spicy; there are small poisons. Indications of water swelling, blood stasis. For edema, phlegm stagnation fullness, two will not pass, blood stasis amenorrhea.
Fluorescence polarization immunoassay (FPIA) is a class of in vitro biochemical test used for rapid detection of antibody or antigen in sample. FPIA is a competitive homogenous assay, that consists of a simple prepare and read method, without the requirement of separation or washing steps.
The basis of the assay is fluorescence anisotropy, also known as fluorescence polarization. If a fluorescent molecule is stationary and exposed to plane-polarized light, it will become excited and consequently emit radiation back to the polarized-plane. However, if the excited fluorescent molecule is in motion (rotational or translational) during the fluorescent lifetime, it will emit light in a different direction than the excitation plane. The fluorescent lifetime is the amount of time between the absorption moment and the fluorescent emission moment.
Typically, the rate at which a molecule rotates is indicative of its size.[1] When a fluorescent-labelled molecule (tracer) binds to another molecule the rotational motion will change, resulting in an altered intensity of plane-polarized light, which results in altered fluorescence polarization.[2] Fluorescence polarization immunoassays employ a fluorophore bound antigen that when bound to the antibody of interest, will increase fluorescence polarization. The change in polarization is proportional to the amount of antigen in sample, and is measured by a fluorescence polarization analyzer.[3]
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