饑餓素(GHRL)等多因子檢測試劑盒(流式熒光發(fā)光法)
Multiplex Assay Kit for Ghrelin (GHRL) ,etc. by FLIA (Flow Luminescence Immunoassay)
MTLRP; Growth Hormone-Releasing Peptide
(注:單次混測多因子不超過8個指標 )
- 編號LMA991Rb
- 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1.5h
- 檢測范圍9.77-10000pg/mL
- 靈敏度最小可檢測劑量小于等于3.257 pg/mL.
- 樣本類型Serum, plasma, tissue homogenates, cell lysates, cell culture supernates and other biological fluids.
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特異性
本試劑盒用于檢測饑餓素(GHRL)等多因子檢測試劑盒(流式熒光發(fā)光法),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饑餓素(GHRL)等多因子檢測試劑盒(流式熒光發(fā)光法)(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) | 98-105 | 101 |
EDTA plasma(n=5) | 83-92 | 87 |
heparin plasma(n=5) | 81-96 | 85 |
sodium citrate plasma(n=5) | 96-103 | 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饑餓素(GHRL)等多因子檢測試劑盒(流式熒光發(fā)光法),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饑餓素(GHRL)等多因子檢測試劑盒(流式熒光發(fā)光法)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) | 86-101% | 79-94% | 78-90% | 95-105% |
EDTA plasma(n=5) | 86-95% | 96-105% | 86-95% | 95-103% |
heparin plasma(n=5) | 80-89% | 81-95% | 78-104% | 80-101% |
sodium citrate plasma(n=5) | 98-105% | 92-101% | 80-95% | 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、試劑及樣本準備;
2. 加樣(標準品、樣本、磁珠、檢測溶液A)標準品或樣本50μL及磁珠10μL,加檢測溶液A50μL,
37°C酶標板振蕩器孵育60分鐘;
3. 磁吸洗板3次;
4. 加檢測溶液B100μL,37°C振動孵育30分鐘;
5. 磁吸洗板3次;
6. 加鞘液100μL,旋渦震蕩2分鐘后讀數(shù)。
實驗原理
將饑餓素(GHRL)等多因子檢測試劑盒(流式熒光發(fā)光法)抗體包被于磁珠,制成固相載體,向微孔中分別加入標準品或標本以及磁珠、標記VEGFA,標記的饑餓素(GHRL)等多因子檢測試劑盒(流式熒光發(fā)光法)和未標記的饑餓素(GHRL)等多因子檢測試劑盒(流式熒光發(fā)光法)與連接于固相載體上的抗體競爭結合,然后將未結合物洗凈后,加入PE標記的親和素,再次徹底洗滌后即可上機讀數(shù)。MFI值和樣品中的饑餓素(GHRL)等多因子檢測試劑盒(流式熒光發(fā)光法)呈負相關。
贈品
增值服務
相關產(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!) |
CEA991Rb | 饑餓素(GHRL)檢測試劑盒(酶聯(lián)免疫吸附試驗法) | Enzyme-linked immunosorbent assay for Antigen Detection. |
LMA991Rb | 饑餓素(GHRL)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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