激活素A(ACVA)等多因子檢測試劑盒(流式熒光發(fā)光法)
Multiplex Assay Kit for Activin A (ACVA) ,etc. by FLIA (Flow Luminescence Immunoassay)
ACV-A; Activin Beta A Beta A Homodimer
(注:單次混測多因子不超過8個指標 )
- 編號LMA001Mu
- 物種Mus musculus (Mouse,小鼠)相同的名稱,不同的物種。
- 實驗方法競爭抑制
- 反應時長3h
- 檢測范圍0.98-1000pg/mL
- 靈敏度最小可檢測劑量小于等于0.327 pg/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
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特異性
本試劑盒用于檢測激活素A(ACVA),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激活素A(ACVA)(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) | 97-105 | 101 |
| EDTA plasma(n=5) | 86-102 | 91 |
| heparin plasma(n=5) | 94-103 | 98 |
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激活素A(ACVA),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激活素A(ACVA)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) | 84-97% | 93-104% | 97-105% | 96-104% |
| EDTA plasma(n=5) | 96-103% | 90-104% | 88-97% | 99-105% |
| heparin plasma(n=5) | 88-104% | 84-96% | 96-105% | 79-104% |
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、向實驗板每孔內加入200μL分析緩沖液以預濕;
2、實驗前標準品、試劑及樣本準備;
3、加樣(標準品、樣本、磁珠、檢測溶液A),標準品或樣本50μL,加檢測溶液A 50μL,及磁珠10μL,25°C酶標板振蕩器孵育90分鐘;
4、磁吸甩干,加檢測溶液B 100μL,25°C振動孵育30分鐘;
5、磁吸洗板1次;
6、加鞘液100μL,旋渦震蕩10分鐘后讀數(shù)。
實驗原理
將激活素A(ACVA)抗體包被于磁性微球表面,制成固相載體。在微孔中同時加入待測抗原(標準品或樣本)、生物素標記的抗原和微球。待測抗原與生物素標記抗原對特異性抗體進行競爭結合。加入PE標記的鏈霉親和素,上機讀數(shù)。MFI值(Median Fluorescence Intensity)和樣品中的激活素A(ACVA)濃度呈負相關。
贈品
相關產(chǎn)品
| 編號 | 適用物種:Mus musculus (Mouse,小鼠) | 應用(僅供研究使用,不用于臨床診斷!) |
| CEA001Mu | 激活素A(ACVA)檢測試劑盒(酶聯(lián)免疫吸附試驗法) | Enzyme-linked immunosorbent assay for Antigen Detection. |
| LMA001Mu | 激活素A(ACVA)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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