To quantitatively detect the concentration of Soluble fms-like tyrosine kinase-1 in humanserumin vitro. Major components: Reagent 1, Reagent 3, Reagent 4, quality control products, calibrator, ID card, control card, calibrator card ( for Shine i1910 use only). Storage conditions and expiration period: Do not freeze and thaw repeatedly, only freeze and thaw once. Applipable instrument: iMAGIN 1800, Shine i1910chemiluminescence immunoassayanalyzer from Aucheer.