中文字幕永久有效,综合AV,成人在线免费视频,韩漫歪歪漫画,欧美精品福利视频,精品黄色片,好叼操视频,tai9.tvcom亂伦

<button id="eiezk"><video id="eiezk"></video></button>

產(chǎn)品名稱

Free Estriol ELISA Kit from DRG INTERNATIONAL INC.

產(chǎn)品貨號

EIA1612

產(chǎn)品價格

現(xiàn)貨詢價，電話：010-67529703

產(chǎn)品規(guī)格

96 wells

產(chǎn)品品牌

DRG INTERNATIONAL INC.

產(chǎn)品概述

產(chǎn)品詳情

Edit	&nbsp
Product Name	Free Estriol ELISA Kit
Description	The DRG Free Estriol ELISA is an enzyme immunoassay for the quantitative measurement of free estriol (unconjugated estriol) in serum during the second half of pregnancy. Estriol (E3) is the major estrogen formed by the fetoplacental unit during pregnancy. Unconjugated E3 passes through the placenta into the maternal circulation, where it is rapidly converted into glucuronide and sulfate derivatives to facilitate its excretion. The half-life of estriol in the maternal bloodstream is only 20-30 minutes. Its measurement, therefore offers a convenient and quick evaluation of current fetal status. Plasma estriol levels increase steadily throughout pregnancy and most rapidly during the third trimester (28-40 weeks). A sudden decrease in fetoplacental E3 production will result in a rapid fall in unconjugated E3 in the maternal serum. There are several potential advantages to measuring unconjugated E3 rather than total serum or urinary E3. Unconjugated estriol levels are free from effects related to maternal renal or hepatic disease, and are not altered by the administration of certain antibiotics. Unconjugated E3 more accurately reflects fetal outcome in diabetic pregnancies - and since no hydrolysis of unconjugated E3 is required, a more rapid tumaround for the test result is possible. The DRG Free Estriol ELISA Kit is a solid phase enzyme-linked immunosorbent assay (ELISA), based on the principle of competitive binding. The microtiter wells are coated with a polyclonal [rabbit] antibody directed towards an antigenic site on the Estriol molecule. Endogenous Estriol of a sample competes with an Estriol-horseradish peroxidase conjugate for binding to the coated antibody. After incubation the unbound conjugate is washed off. The amount of bound peroxidase conjugate is inversely proportional to the concentration of Estriol in the sample. After addition of the substrate solution, the intensity of color developed is inversely proportional to the concentration of Estriol in the sample.
Size	96 wells
Concentration	n/a
Applications	n/a
Other Names	EIA, enzyme immunoassay, assay
Gene, Accession, CAS #	n/a
Catalog #	EIA1612
Price
Order / More Info	Free Estriol ELISA Kit from DRG INTERNATIONAL INC.
Product Specific References	n/a
產(chǎn)品資料

<button id="eiezk"><video id="eiezk"></video></button>