β-內(nèi)啡肽(bEP)檢測試劑盒(酶聯(lián)免疫吸附試驗法)
ELISA Kit for Beta-Endorphin (bEP)
b-EP
- 編號CEA806Rb
 - 物種Oryctolagus cuniculus (Rabbit,兔)相同的名稱,不同的物種。
 - 實驗方法競爭抑制
 - 反應時長2h
 - 檢測范圍12.35-1,000pg/mL
 - 靈敏度最小可檢測劑量小于等于5.25pg/mL.
 - 樣本類型Serum, plasma, cerebrospinal fluid and other biological fluids
 - 下載英文說明書 中文說明書
 - 規(guī)格48T96T96T*596T*1096T*100
 - 價格¥ 2873¥ 4104¥ 18468¥ 34884¥ 287280
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特異性
                        本試劑盒用于檢測β-內(nèi)啡肽(bEP),經(jīng)檢測與其它相似物質(zhì)無明顯交叉反應。
                        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。
                    
回收率
分別于定值血清及血漿樣本中加入一定量的β-內(nèi)啡肽(bEP)(加標樣品),重復測定并計算其均值,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) | 82-104 | 86 | 
| EDTA plasma(n=5) | 79-92 | 85 | 
| heparin plasma(n=5) | 78-101 | 86 | 
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、高值定值樣本進行定量檢測,每份樣本連續(xù)測定20 次,分別計算不同濃度樣本的平均值及SD值。
                    批間差:選取3個不同批次的試劑盒分別對低、中、高值定值樣本進行定量測定,每個樣本使用同一試劑盒重復測定8次,分別計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β-內(nèi)啡肽(bEP),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β-內(nèi)啡肽(bEP)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) | 81-88% | 85-93% | 89-102% | 93-105% | 
| EDTA plasma(n=5) | 87-94% | 80-97% | 94-105% | 94-101% | 
| heparin plasma(n=5) | 79-90% | 80-94% | 82-93% | 78-97% | 
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,實驗室的環(huán)境條件需盡量保持一致,尤其是實驗室內(nèi)溫度、濕度及溫育條件。其次由同一實驗員來進行操作可減少人為誤差。
                
實驗流程
1. 實驗前標準品、試劑及樣本的準備;
                            2. 加樣(標準品及樣本)50µL,
                                加入50µL檢測液A(臨用前配制);
                                37°C溫育1小時。
                            3. 洗板3次;
                            4. 加檢測溶液B100µL,37°C孵育30分鐘;
                            5. 洗板5次;
                            6. 加TMB底物90µL,37°C孵育10-20分鐘;
                            7. 加終止液50µL,立即450nm讀數(shù)。
實驗原理
本試劑盒應用競爭抑制酶聯(lián)免疫分析法測定標本中待測物質(zhì)水平。將β-內(nèi)啡肽(bEP)單克隆抗體包被微孔板,制成固相載體,往包被抗體的微孔中同時加入生物素標記的抗原和待測抗原(標準品或樣本),待測抗原與生物素標記抗原對特異性抗體進行競爭結(jié)合。溫育后經(jīng)洗滌去掉未結(jié)合物,然后加入HRP標記的親和素,經(jīng)過溫育和徹底洗滌后加入底物TMB顯色。TMB在過氧化物酶的催化下轉(zhuǎn)化成藍色,并在酸的作用下轉(zhuǎn)化成最終的黃色。待測標本濃度越高,標記抗原和抗體的結(jié)合就越受到抑制,顯色愈淺。顯色的深淺與酶量呈正相關(guān),而與樣品中待測物質(zhì)含量呈負相關(guān)。用酶標儀在450nm波長下測定吸光度(O.D.值),計算樣品濃度。
相關(guān)產(chǎn)品
| 編號 | 適用物種:Oryctolagus cuniculus (Rabbit,兔) | 應用(僅供研究使用,不用于臨床診斷!) | 
| CEA806Rb | β-內(nèi)啡肽(bEP)檢測試劑盒(酶聯(lián)免疫吸附試驗法) | Enzyme-linked immunosorbent assay for Antigen Detection. | 
| LMA806Rb | β-內(nèi)啡肽(bEP)等多因子檢測試劑盒(流式熒光發(fā)光法) | FLIA Kit for Antigen Detection. | 
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