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一步法人脑钠素(BNP)酶联免疫吸附检测试剂盒
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ELK007ES
规格: 价格:
64T ¥1960.00
112T ¥2800.00
112T*5 ¥11900.00

Overview

产品名称: EasyStep Human BNP(Brain Natriuretic Peptide) ELISA Kit
反应性: Human
别名: GC-B; B-Type Natriuretic Peptide; Ventricular Natriuretic Peptide; Gamma-brain natriuretic peptide; Brain natriuretic peptide 32
反应类型: Sandwich
灵敏度: 6.8 pg/mL
标准品: 2000 pg/mL
检测范围: 31.25-2000 pg/mL
样本类型: Serum, plasma
反应时长: 1.5h
研究领域: Cardiovascular biology;Neuro science;Hormone metabolism;
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 BNP, and the Human BNP standard plate wells that pre-coated using protein-related techniques are provided separately. Standard/Sample Diluent Buffer or samples are added to the appropriate microtiter plate wells ,then added a HRP-conjugated antibody specific to Human BNP. After TMB substrate solution is added, only those wells that contain Human BNP and HRP-conjugated antibody 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 BNP 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
2000.00 2.266 2.170
1000.00 1.633 1.537
500.00 1.088 0.992
250.00 0.826 0.730
125.00 0.539 0.443
62.50 0.313 0.217
31.25 0.235 0.139
0.00 0.096 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,以评估分析板件的精密度。

回收率

分别往不同样本中添加已知浓度的BNP, 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) 88-102% 95%
EDTA 血浆(n=5) 80-93% 86%
Heparin 血浆(n=5) 87-97% 90%

线性

将添加有BNP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) 87-98% 85-92% 79-96% 89-100%
EDTA 血浆(n=5) 86-102% 87-96% 89-98% 83-103%
Heparin 血浆(n=5) 98-105% 92-101% 85-105% 87-98%

产品成分表

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