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人防御素β103A(DEFb103A)酶联免疫吸附检测试剂盒
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ELK4237
规格: 价格:
48T ¥1820.00
96T ¥2600.00
96T*5 ¥11050.00

Overview

产品名称: Human DEFb103A(Defensin Beta 103A) ELISA Kit
反应性: Human
别名: DEFB103; DEFB3; HBD-3; HBD3; HBP-3; HBP3; Beta-defensin 3; Defensin-like protein
反应类型: Sandwich
灵敏度: 19.59 pg/mL
标准品: 3000 pg/mL
检测范围: 46.88-3000 pg/mL
样本类型: serum, plasma and other biological fluids
反应时长: 3.5h
研究领域: Infection immunity;
Uniprot ID: P81534
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 DEFb103A. Standards or samples are added to the appropriate microtiter plate wells then with a biotin-conjugated antibody specific to Human DEFb103A. 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 DEFb103A, 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 DEFb103A 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
3000.00 2.204 2.105
1500.00 1.702 1.603
750.00 1.282 1.183
375.00 0.897 0.798
187.50 0.582 0.483
93.75 0.365 0.266
46.88 0.265 0.166
0.00 0.099 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DEFb103A, 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) 78-93% 85%
EDTA 血浆(n=5) 82-95% 88%
Heparin 血浆(n=5) 89-103% 96%

线性

将添加有DEFb103A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) 87-103% 97-105% 79-90% 87-96%
EDTA 血浆(n=5) 93-99% 87-101% 85-95% 85-96%
Heparin 血浆(n=5) 88-100% 95-103% 89-97% 85-94%
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