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大鼠食欲素A(OXA)酶聯(lián)免疫吸附檢測試劑盒
ELK1663
規(guī)格: 價格:
48T ¥1960.00
96T ¥2800.00

Overview 文獻(xiàn)

Product name: Rat OXA(Orexin A) ELISA Kit
Reactivity: Rat
Alternative Names: Hypocretin-1
Assay Type: Competitive Inhibition
Sensitivity: 4.59 pg/mL
Standard: 1000 pg/mL
Detection Range: 15.63-1000 pg/mL
Sample Type: Serum, plasma, tissue homogenates, cell lysates, cell culture supernates and other biological fluids
Assay Length: 2h
Research Area: Neuro science;Gastroenterology;Hormone metabolism;
Test principle: This assay employs the competitive inhibition enzyme immunoassay technique. The microtiter plate provided in this kit has been pre-coated with Rat OXA protein. Standards or samples are added to the appropriate microtiter plate wells then with a biotin-conjugated antibody specific to Rat OXA. 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 Rat OXA in the samples is then determined by comparing the OD of the samples to the standard curve.

標(biāo)準(zhǔn)曲線

Concentration (pg/mL) OD Corrected OD
1000.00 0.195
500.00 0.467
250.00 0.793
125.00 0.997
62.50 1.258
31.25 1.596
15.63 1.887
0.00 2.219

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 OXA and the recovery rates were calculated by comparing the measured value to the expected amount of OXA in samples.
Matrix Recovery range Average
serum(n=5) 87-95% 91%
EDTA plasma(n=5) 78-92% 85%
Heparin plasma(n=5) 92-106% 99%

線性

The linearity of the kit was assayed by testing samples spiked with appropriate concentration of OXA and their serial dilutions. The results were demonstrated by the percentage of calculated concentration to the expected.
Matrix 1:2 1:4 1:8 1:16
serum(n=5) 89-103% 85-93% 89-97% 95-102%
EDTA plasma(n=5) 85-94% 93-101% 87-98% 89-102%
Heparin plasma(n=5) 88-97% 85-101% 86-98% 96-107%
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