E選擇素檢測試劑盒(酶聯(lián)免疫吸附試驗(yàn)法)
編號SEA029Hu
物種Homo sapiens (Human,人) 相同的名稱,不同的物種。
實(shí)驗(yàn)方法雙抗夾心
反應(yīng)時(shí)長3h
檢測范圍39-2,500pg/mL
靈敏度最小可檢測劑量小于等于15pg/mL.
樣本類型Serum, plasma, tissue homogenates, cell lysates, cell culture supernates and other biological fluids
下載英文說明書 中文說明書
規(guī)格48T96T 96T*5 96T*10 96T*100
價(jià)格¥ 2808
特異性
本試劑盒用于檢測E選擇素,經(jīng)檢測與其它相似物質(zhì)無明顯交叉反應(yīng)。
由于受到技術(shù)及樣本來源的限制,不可能完成對所有相關(guān)或相似物質(zhì)交叉反應(yīng)檢測,因此本試劑盒有可能與未經(jīng)檢測的其它物質(zhì)有交叉反應(yīng)。
回收率
分別于定值血清及血漿樣本中加入一定量的E選擇素(加標(biāo)樣品),重復(fù)測定并計(jì)算其均值,回收率為測定值與理論值的比率。
樣本 | 回收率范圍(%) | 平均回收率(%) |
serum(n=5) | 83-93 | 87 |
EDTA plasma(n=5) | 81-98 | 92 |
heparin plasma(n=5) | 81-96 | 89 |
精密度
精密度用樣品測定值的變異系數(shù)CV表示。CV(%) = SD/mean×100
批內(nèi)差:取同批次試劑盒對低、中、高值定值樣本進(jìn)行定量檢測,每份樣本連續(xù)測定20 次,分別計(jì)算不同濃度樣本的平均值及SD值。
批間差:選取3個(gè)不同批次的試劑盒分別對低、中、高值定值樣本進(jìn)行定量測定,每個(gè)樣本使用同一試劑盒重復(fù)測定8次,分別計(jì)算不同濃度樣本的平均值及SD值。
批內(nèi)差: CV<10%
批間差: CV<12%
線性
在定值血清及血漿樣本內(nèi)加入適量的E選擇素,并倍比稀釋成1:2,1:4,1:8,1:16的待測樣本,線性范圍即為稀釋后樣本中E選擇素含量的測定值與理論值的比率。
樣本 | 1:2 | 1:4 | 1:8 | 1:16 |
serum(n=5) | 85-93% | 78-96% | 98-105% | 80-93% |
EDTA plasma(n=5) | 97-104% | 89-96% | 80-95% | 81-101% |
heparin plasma(n=5) | 80-99% | 87-103% | 78-103% | 88-104% |
穩(wěn)定性
經(jīng)測定,試劑盒在有效期內(nèi)按推薦溫度保存,其活性降低率小于5%。
為減小外部因素對試劑盒破壞前后檢測值的影響,實(shí)驗(yàn)室的環(huán)境條件需盡量保持一致,尤其是實(shí)驗(yàn)室內(nèi)溫度、濕度及溫育條件。其次由同一實(shí)驗(yàn)員來進(jìn)行操作可減少人為誤差。
實(shí)驗(yàn)流程
1. 實(shí)驗(yàn)前標(biāo)準(zhǔn)品、試劑及樣本的準(zhǔn)備;
2. 加樣(標(biāo)準(zhǔn)品及樣本)100µL,37°C孵育1小時(shí);
3. 吸棄,加檢測溶液A100µL,37°C孵育1小時(shí);
4. 洗板3次;
5. 加檢測溶液B100µL,37°C孵育30分鐘;
6. 洗板5次;
7. 加TMB底物90µL,37°C孵育10-20分鐘;
8. 加終止液50µL,立即450nm讀數(shù)。
實(shí)驗(yàn)原理
將E選擇素抗體包被于96孔微孔板中,制成固相載體,向微孔中分別加入標(biāo)準(zhǔn)品或標(biāo)本,其中的E選擇素與連接于固相載體上的抗體結(jié)合,然后加入生物su化的E選擇素抗體,將未結(jié)合的生物su化抗體洗凈后,加入HRP標(biāo)記的親和素,再次洗滌后加入TMB底物顯色。TMB在過氧化物酶的催化下轉(zhuǎn)化成藍(lán)色,并在酸的作用下轉(zhuǎn)化成最終的黃色。顏色的深淺和樣品中的E選擇素呈正相關(guān)。用酶標(biāo)儀在450nm波長下測定吸光度(O.D.值),計(jì)算樣品濃度。
參考文獻(xiàn)
雜志 | 參考文獻(xiàn) |
Shock | Systemic involvement of high-mobility group box 1 protein and therapeutic effect of anti-high-mobility group box 1 protein antibody in a rat model of crush injury. [PubMed: 22392147] |
BioMed research international | Endothelial gene expression and molecular changes in response to radiosurgery in in vitro and in vivo models of cerebral arteriovenous malformations [Pubmed: 24199192] |
Journal of Neuroimmunology | Evaluation of the effects of Eserine and JWH-133 on brain dysfunction associated with experimental endotoxemia [PubMed: 25867462] |
International Journal of Food Sciences and Nutrition | Serum lipid profile and inflammatory markers in the aorta of cholesterol-fed rats supplemented with extra virgin olive oil, sunflower oils and oil-products [PubMed: 26401576] |
Experimental Parasitology | Adhesion molecules, chemokines and matrix metallo-proteinases response after albendazole and albendazole plus steroid therapy in swine neurocysticercosis [pubmed:28821422] |
journal of thoracic and cardiovascular surgery | Evaluating Platelet Activation Related to the Degradation of Biomaterials Using Molecular Markers [Pubmed: 32812629] |
BMC Endocrine Disorders | The role of the adipocytokines vaspin and visfatin in vascular endothelial function and insulin resistance in obese children [Pubmed: 31771561] |
Scientific Reports | Association between Upper-airway Surgery and Ameliorative Risk Markers of endothelial function in obstructive Sleep Apnea [Pubmed: 31882827] |
Frontiers in Pharmacology | Hyperoside Protects Human Umbilical Vein Endothelial Cells Against Anticardiolipin Antibody-Induced Injury by Activating Autophagy [Pubmed: 32508661] |
Microvasc Res | Effect of liraglutide on microcirculation in rat model with absolute insulin deficiency [34119534] |
Anim Sci J | Effect of dipeptide on intestinal peptide transporter 1 gene expression: An evaluation using primary cultured chicken intestinal epithelial cells [34309968] |
注:產(chǎn)品僅用于科研