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Cattle VIP(Vasoactive Intestinal Peptide) ELISA Kit

Cattle VIP(Vasoactive Intestinal Peptide) ELISA Kit

 
Catalog #
EKEL22359BV
Species
Cattle
Sensitivity
2.59 pg/mL
Assay Range
7.82-500 pg/mL
Sample type(s)
Serum, plasma, tissue homogenates, cell lysates, cell culture supernates and other biological fluids
 
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 Catalog #AvailabilitySizeQuantityUnit Price Save For Later Wish List
EKEL22359BV-96 2 weeks 96T $735.00
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EKEL22359BV-48 2 weeks 48T $515.00
EKEL22359BV-96x5 2 weeks 96T*5 $3,125.00
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Product Overview

NameCattle VIP(Vasoactive Intestinal Peptide) ELISA Kit
Reaction Duration3.5h
Target SpeciesCattle
ReactivityCattle
Sensitivity2.59 pg/mL
Assay Range7.82-500 pg/mL
Assay typeSandwich
Sample type(s)Serum, plasma, tissue homogenates, cell lysates, cell culture supernates and other biological fluids
Other Names
PHM27; Intestinal peptide PHV-42; Peptide histidine valine 42; Peptide histidine methioninamide 27
Principle of the Assay
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 Cattle VIP. Standards or samples are added to the appropriate microtiter plate wells then with a biotin-conjugated antibody specific to Cattle VIP. 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 Cattle VIP, 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 Cattle VIP in the samples is then determined by comparing the OD of the samples to the standard curve.
Standard Curve
Concentration (pg/mL)ODCorrected OD
500.002.1662.072
250.001.5071.413
125.001.1851.091
62.500.8570.763
31.250.4730.379
15.630.3130.219
7.820.2120.118
0.000.0940.000
Standard curve: The concentration of VIP (pg/mL) plotted against Corrected OD.
Precision
AssayCVMethod
Intra-assay (precision within an assay)< 8%Three samples of known concentration were tested twenty times on one plate to assess intra-assay precision.
Inter-assay (precision between assays)< 10%Three samples of known concentration were tested in forty separate assays to assess inter-assay precision.
Recovery

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

MatrixRecovery rangeAverage
Serum (n=5)80-96%88%
EDTA plasma (n=5)80-92%86%
Heparin plasma (n=5)78-95%86%
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