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人抗HLA II类组织相容性抗原γ链抗体(Anti-CD74)酶联免疫吸附检测试剂盒
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ELK11340
规格: 价格:
48T ¥1820.00
96T ¥2600.00
96T*5 ¥11050.00

Overview

产品名称: Human Anti-CD74(Anti-HLA class II histocompatibility antigen gamma chain Antibody) ELISA Kit
反应性: Human
别名: CD74 antibody;DHLAG antibody
反应类型: Sandwich
灵敏度: 0.63 ng/mL
标准品: 100 ng/mL
检测范围: 1.57-100 ng/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: Immunology
Uniprot ID: P04233
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 Anti-CD74. Standards or samples are added to the appropriate microtiter plate wells then with a biotin-conjugated antibody specific to Human Anti-CD74. 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 Anti-CD74, 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 Anti-CD74 in the samples is then determined by comparing the OD of the samples to the standard curve.

标准曲线

Concentration (ng/mL) OD Corrected OD
100.00 2.236 2.153
50.00 1.613 1.530
25.00 1.136 1.053
12.50 0.866 0.783
6.25 0.655 0.572
3.13 0.357 0.274
1.57 0.215 0.132
0.00 0.083 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Anti-CD74, 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) 86-99% 92%
EDTA 血浆(n=5) 80-95% 87%
Heparin 血浆(n=5) 90-105% 97%

线性

将添加有Anti-CD74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) 82-96% 85-96% 87-101% 89-97%
EDTA 血浆(n=5) 85-101% 84-98% 85-93% 86-98%
Heparin 血浆(n=5) 86-97% 93-102% 87-98% 83-97%
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