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白蛋白(ALB)檢測試劑盒(酶聯(lián)免疫吸附試驗法)

ELISA Kit for Albumin (ALB)

Serum albumin

  • 白蛋白(ALB)檢測試劑盒(酶聯(lián)免疫吸附試驗法) 產(chǎn)品包裝(模擬)
  • 白蛋白(ALB)檢測試劑盒(酶聯(lián)免疫吸附試驗法) 產(chǎn)品包裝(模擬)
  • 白蛋白(ALB)檢測試劑盒(酶聯(lián)免疫吸附試驗法) 實驗結果圖
  • CEB028Bo.jpg 標準曲線圖
  • Certificate 通過ISO 9001、ISO 13485質量體系認證

特異性

本試劑盒用于檢測白蛋白(ALB),經(jīng)檢測與其它相似物質無明顯交叉反應。
由于受到技術及樣本來源的限制,不可能完成對所有相關或相似物質交叉反應檢測,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白蛋白(ALB)(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) 91-105 97
EDTA plasma(n=5) 90-98 95
heparin plasma(n=5) 97-104 101

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。
批內差: CV<10%
批間差: CV<12%

線性

在定值血清及血漿樣本內加入適量的白蛋白(ALB),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白蛋白(ALB)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) 90-98% 86-101% 79-97% 86-104%
EDTA plasma(n=5) 83-92% 93-101% 98-105% 94-102%
heparin plasma(n=5) 84-103% 97-105% 79-102% 98-105%

穩(wěn)定性

經(jīng)測定,試劑盒在有效期內按推薦溫度保存,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水平。將白蛋白(ALB)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合。溫育后經(jīng)洗滌去掉未結合物,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化成藍色,并在酸的作用下轉化成最終的黃色。待測標本濃度越高,標記抗原和抗體的結合就越受到抑制,顯色愈淺。顯色的深淺與酶量呈正相關,而與樣品中待測物質含量呈負相關。用酶標儀在450nm波長下測定吸光度(O.D.值),計算樣品濃度。

相關產(chǎn)品

編號 適用物種:Bos taurus; Bovine (Cattle,牛) 應用(僅供研究使用,不用于臨床診斷!)
NPB028Bo01 白蛋白(ALB)天然蛋白 Positive Control; Immunogen; SDS-PAGE; WB.
PAB028Bo01 白蛋白(ALB)多克隆抗體 WB; IHC; ICC; IP.
LAB028Bo71 白蛋白(ALB)多克隆抗體(生物素標記) WB; IHC; ICC.
CEB028Bo 白蛋白(ALB)檢測試劑盒(酶聯(lián)免疫吸附試驗法) Enzyme-linked immunosorbent assay for Antigen Detection.
KSB028Bo11 白蛋白(ALB)檢測試劑盒DIY材料(酶聯(lián)免疫吸附試驗法) Main materials for "Do It (ELISA Kit) Yourself".

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