For the quantitative determination of human Vascular Endothelial Growth Factor (VEGF) concentrations in cell culture supernates, serum, and plasma.
This analysis calculates concentrations using a Four Parameter Logistic fit in accordance with the kit instructions.
The average of the zero measurements is subtracted from the average of each sample. The standard data points (concentration vs. measurement) are plotted on semi-log axes and a 4PL curve is fitted through the average of the replicated standards. The concentrations of the samples are determined from the fit with any specified dilution factors applied.
The %CV, Standard Deviation and Standard Error are calculated for each replicated sample. Samples outside the range of the standards or the fit (greater than the upper asymptote or below the lower asymptote) are highlighted in yellow.
If the entire plate was read then supply the measured value for each well. Alternatively, if only specific parts of the plate were read then list only those measured values. In this case an additional step is required: under the Microplate section below, select or create a layout which defines which wells were read and which were not. More...
A zero concentration value has been specified with a logarithmic x axis.
This is valid but means that you will not see the zero standard on the chart, also in certain cases it may result in a skewed fit. One alternative is to use a suitably low value, such as 0.01 instead of zero. More...
Quantikine and R&D Systems logo are registered trade marks of R&D Systems, Inc.
Only members can access this function.
Please log in or join now (it's free to join).