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人神经肽S(NPS)酶联免疫吸附检测试剂盒
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ELK1061
规格: 价格:
48T ¥1680.00
96T ¥2400.00
96T*5 ¥10200.00

Overview

产品名称: Human NPS(Neuropeptide S) ELISA Kit
反应性: Human
别名: NP-S
反应类型: Competitive Inhibition
灵敏度: 4.32 pg/mL
标准品: 1000 pg/mL
检测范围: 15.63-1000 pg/mL
样本类型: Serum, plasma and other biological fluids
反应时长: 2h
研究领域: Neuro science;Hormone metabolism;
Uniprot ID: P0C0P6
检测原理: This assay employs the competitive inhibition enzyme immunoassay technique. The microtiter plate provided in this kit has been pre-coated with Human NPS. Standards or samples are added to the appropriate microtiter plate wells then with a biotin-conjugated antibody specific to Human NPS. Next, Avidin conjugated to Horseradish Peroxidase (HRP) is added to each microplate well and incubated. After TMB substrate solution is added. 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 NPS 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
1000.00 0.108
500.00 0.214
250.00 0.318
125.00 0.527
62.50 0.824
31.25 1.109
15.63 1.724
0.00 2.167

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NPS, 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) 96-104% 100%
EDTA 血浆(n=5) 98-104% 102%
Heparin 血浆(n=5) 95-107% 101%

线性

将添加有NPS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) 82-94% 95-102% 87-103% 88-95%
EDTA 血浆(n=5) 87-95% 78-91% 97-103% 95-101%
Heparin 血浆(n=5) 85-94% 87-99% 85-101% 79-90%
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