产品货号Reference:              CAN-E-430
规格Kit Type:                       Competitive ELISA
检测方法Kit Size:                  96-well break-apart microplate
灵敏度Sensitivity:                10 pg/mL
检测样本Sample Type:         Human serum / 50 μL
校准范围Calibrator Range:  20–3200 pg/mL
检测时间Total Assay Time:  75 minutes

背景介绍：

雌二醇是天然雌激素的主要成分之一，是月经周期中分泌的主要雌激素。血清雌二醇水平在卵泡期处于低水平，逐渐升高，直到排卵前一天左右，雌二醇水平出现显着上升(排卵高峰)。雌二醇水平在排卵时或排卵后迅速下降，并再次处于卵泡期水平之内。雌二醇在周期的第21天(黄体峰)有第二次上升。然后在下一个月经周期开始时逐渐下降到*水平。
Estradiol is one of the main components of naturally occurring estrogens and is the major estrogen secreted during the menstrual cycle. The serum levels of estradiol are low during the follicular phase rising gradually until about one day before ovulation when a marked rise in the estradiol level occurs (Ovulatory Peak). The estradiol level falls rapidly at, or right after ovulation and is again within the levels of the follicular phase. There is a second rise of estradiol around day 21 of the cycle (Luteal Peak). The levels then decline gradually to the lowest level at the onset of the next menstrual cycle.