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人前胰淀粉样蛋白(ProIAPP)酶联免疫吸附检测试剂盒
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ELK2664
规格: 价格:
48T ¥1820.00
96T ¥2600.00
96T*5 ¥11050.00

Overview

产品名称: Human ProIAPP(Proislet Amyloid Polypeptide) ELISA Kit
反应性: Human
别名: Pro-IAPP; Pro-Amylin; Pro-Islet Amyloid Polypeptide
反应类型: Competitive Inhibition
灵敏度: 8.9 pg/mL
标准品: 2000 pg/mL
检测范围: 31.25-2000 pg/mL
样本类型: Serum, plasma and other biological fluids
反应时长: 2h
研究领域: Apoptosis;Infection immunity;Hepatology;Gastroenterology;
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 ProIAPP. Standards or samples are added to the appropriate microtiter plate wells then with a biotin-conjugated antibody specific to Human ProIAPP. 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 ProIAPP 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 0.183
1000.00 0.375
500.00 0.596
250.00 0.842
125.00 1.139
62.50 1.585
31.25 1.796
0.00 2.256

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ProIAPP, 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) 87-99% 93%
EDTA 血浆(n=5) 80-95% 87%
Heparin 血浆(n=5) 87-99% 93%

线性

将添加有ProIAPP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) 81-94% 85-97% 91-102% 81-90%
EDTA 血浆(n=5) 83-97% 92-103% 86-97% 93-101%
Heparin 血浆(n=5) 83-95% 87-96% 79-91% 95-103%
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