癌胚抗原(CEA)檢測試劑盒(酶聯(lián)免疫吸附試驗法)
ELISA Kit for Carcinoembryonic Antigen (CEA)
CD66E; CD66; CEACAM5; Carcinoembryonic Antigen-related Cell Adhesion Molecule 5; Carcinoembryonic Antigen
- 編號USEA150Si
- 物種Rhesus monkey (Simian，恒河猴) 相同的名稱，不同的物種。
- 實驗方法雙抗夾心
- 反應時長3h
- 檢測范圍23.44-1,500pg/mL
- 靈敏度最小可檢測劑量小于等于7.97pg/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
- 價格 ¥ 1512 ¥ 2160 ¥ 9720 ¥ 18360 ¥ 151200
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產(chǎn)品包裝(模擬)
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產(chǎn)品包裝(模擬)
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實驗結(jié)果圖
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標準曲線圖
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通過ISO 9001、ISO 13485質(zhì)量體系認證
特異性
本試劑盒用于檢測癌胚抗原(CEA)，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癌胚抗原(CEA)（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) | 87-97 | 93 |
| EDTA plasma(n=5) | 82-104 | 90 |
| heparin plasma(n=5) | 78-105 | 81 |
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)加入適量的癌胚抗原(CEA)，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癌胚抗原(CEA)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) | 89-96% | 83-91% | 92-101% | 92-99% |
| EDTA plasma(n=5) | 89-96% | 83-96% | 89-97% | 95-104% |
| heparin plasma(n=5) | 78-94% | 98-105% | 78-102% | 93-105% |
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）100µL，37°C孵育1小時；
3. 吸棄，加檢測溶液A100µL，37°C孵育1小時；
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)。
實驗原理
將癌胚抗原(CEA)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準品或標本，其中的癌胚抗原(CEA)與連接于固相載體上的抗體結(jié)合，然后加入生物素化的癌胚抗原(CEA)抗體，將未結(jié)合的生物素化抗體洗凈后，加入HRP標記的親和素，再次徹底洗滌后加入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癌胚抗原(CEA)呈正相關。用酶標儀在450nm波長下測定吸光度(O.D.值)，計算樣品濃度。
增值服務
相關產(chǎn)品
| 編號 | 適用物種：Rhesus monkey (Simian，恒河猴) | 應用(僅供研究使用，不用于臨床診斷！) |
| USEA150Si | 癌胚抗原(CEA)檢測試劑盒(酶聯(lián)免疫吸附試驗法) | Enzyme-linked immunosorbent assay for Antigen Detection. |
| ULMA150Si | 癌胚抗原(CEA)等多因子檢測試劑盒(流式熒光發(fā)光法) | FLIA Kit for Antigen Detection. |
參考文獻
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