大鼠嗜铬蛋白A(CHGA)微量上样酶联免疫吸附检测试剂盒-科鹿（武汉）生物科技有限责任公司

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大鼠嗜铬蛋白A(CHGA)微量上样酶联免疫吸附检测试剂盒

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ELK5769MS

规格：	价格：
48T	￥2240.00
96T	￥3200.00
96T*5	￥13600.00

下载说明 ①

Overview

Product name:	Rat CHGA(Chromogranin A) Microsample ELISA Kit
Reactivity:	Rat
Alternative Names:	CGA; SP-I; Parathyroid Secretory Protein 1; Vasostatin; Pancreastatin; Parastatin; Pituitary secretory protein I
Assay Type:	Sandwich
Sensitivity:	34 pg/mL
Standard:	5000 pg/mL
Detection Range:	78.13-5000 pg/mL
Sample Type:	Serum, plasma and other biological fluids.
Assay Length:	3.5h
Research Area:	Tumor immunity;Neuro science;
Uniprot ID:	P10354
Test principle:	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 Rat CHGA. Standards or samples are added to the appropriate microtiter plate wells then with a biotin-conjugated antibody specific to Rat CHGA. 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 Rat CHGA, 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 Rat CHGA 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
5000.00	2.163	2.077
2500.00	1.625	1.539
1250.00	1.066	0.980
625.00	0.816	0.730
312.50	0.524	0.438
156.25	0.399	0.313
78.13	0.221	0.135
0.00	0.086	0.000

精密度

Intra-assay Precision (Precision within an assay)：CV%<8%

Three samples of known concentration were tested twenty times on one plate to assess intra-assay precision.

Inter-assay Precision (Precision between assays)：CV%<10%

Three samples of known concentration were tested in forty separate assays to assess inter-assay precision.

回收率

Matrices listed below were spiked with certain level of recombinant CHGA and the recovery rates were calculated by comparing the measured value to the expected amount of CHGA in samples.

Matrix	Recovery range	Average
serum(n=5)	87-93%	90%
EDTA plasma(n=5)	95-102%	99%
Heparin plasma(n=5)	91-98%	95%

线性

The linearity of the kit was assayed by testing samples spiked with appropriate concentration of CHGA and their serial dilutions. The results were demonstrated by the percentage of calculated concentration to the expected.