SELECT a.id, a.cat_id, a.name, a.price, a.content, a.image, a.add_time, a.description, a.filepath, a.prd_type, b.click
FROM `dou_product` a
FORCE INDEX (idx_cat_id_order)
INNER JOIN `dou_product_click` b ON a.id = b.product_id
WHERE cat_id IN (147)
LIMIT 40, 20
This assay employs the competitive inhibition enzyme immunoassay technique. The microtiter plate provided in this kit has been pre-coated with Human dSIP. Standards or samples are added to the appropriate microtiter plate wells then with a biotin-conjugated antibody specific to Human dSIP. Next, Avidin conjugated to Horseradish Peroxidase (HRP) is added to each microplate well and incubated. After TMB substrate solution is added. The enzyme-substrate reaction is terminated by the addition of sulphuric acid solution and the color change is measured spectrophotometrically at a wavelength of 450nm ± 10nm. The concentration of Human dSIP in the samples is then determined by comparing the OD of the samples to the standard curve.