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人NK2同源框蛋白5(NKX2-5)酶联免疫吸附检测试剂盒
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ELK0416
规格: 价格:
48T ¥1960.00
96T ¥2800.00
96T*5 ¥11900.00

Overview

产品名称: Human NKX2-5(NK2 Homeobox 5) ELISA Kit
反应性: Human
别名: Cardiac-specific homeobox; Homeobox protein CSX; Homeobox protein NK-2 homolog E; CSX; NKX2.5; NKX2E
反应类型: Sandwich
灵敏度: 21.4 pg/mL
标准品: 5000 pg/mL
检测范围: 78.13-5000 pg/mL
样本类型: serum, plasma, tissue homogenates, cell lysates, cell culture supernates and other biological fluids
反应时长: 3.5h
研究领域: Signal transduction
Uniprot ID: P52952
检测原理: The test principle applied in this kit is Sandwich enzyme immunoassay. The microtiter plate provided in this kit has been pre-coated with an antibody specific to Human NKX2-5. Standards or samples are added to the appropriate microtiter plate wells then with a biotin-conjugated antibody specific to Human NKX2-5. Next, Avidin conjugated to Horseradish Peroxidase (HRP) is added to each microplate well and incubated. After TMB substrate solution is added, only those wells that contain Human NKX2-5, biotin-conjugated antibody and enzyme-conjugated Avidin will exhibit a change in color. The enzyme-substrate reaction is terminated by the addition of sulphuric acid solution and the color change is measured spectrophotometrically at a wavelength of 450nm ± 10nm. The concentration of Human NKX2-5 in the samples is then determined by comparing the OD of the samples to the standard curve.

标准曲线

Concentration (pg/mL) OD Corrected OD
5000.00 1.954 1.873
2500.00 1.597 1.516
1250.00 1.121 1.040
625.00 0.882 0.801
312.50 0.595 0.514
156.25 0.315 0.234
78.13 0.215 0.134
0.00 0.081 0.000

精密度

板内精密度(测定内的精密度):CV%<8%

三个已知浓度的样品分别在1个酶标板上测试20次,以评估分析板内精密度。

板间精密度(测定板间间精密度):CV%<10%

三个已知浓度的样品分别在3个不同的酶标板上测试40次,以评估分析板间的精密度。

回收率

分别往不同样本中添加已知浓度的NKX2-5, 做回收率实验,得出回收率范围和平均回收率
样本类型 回收率范围 平均回收率
血清(n=5) 90-105% 97%
EDTA 血浆(n=5) 86-99% 92%
Heparin 血浆(n=5) 80-95% 87%

线性

将添加有NKX2-5的样本分别稀释2倍,4倍,8倍,16倍做回收实验,得出回收率范围
样本类型 1:2 1:4 1:8 1:16
血清(n=5) 92-101% 82-98% 89-97% 85-93%
EDTA 血浆(n=5) 85-97% 87-96% 82-95% 92-105%
Heparin 血浆(n=5) 85-92% 79-96% 89-100% 85-96%
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