This information can be very useful in optimizing the separation of a mixture of known compounds.
The gas analysis system was calibrated using a gas mixture of known O2 and CO2 concentrations before each test.
A calibration mixture of known peptides/proteins in a mass range of 1,000∼25,000 Da was set for mass calibration.
Complete external calibration using a mixture of known peptides.
To develop and validate the method, we first used a simple synthetic mixture of known compounds.
External calibrations were completed using a mixture of known peptides.Samples were analysed using a two-layer preparation method (19).
Each measurement was preceded by calibration with a gas mixture of known composition according to the manufacturer's instructions.
Conversely, large clusters such as Cluster 2, which contains a mixture of known myeloid/granulocyte-enriched genes and general anabolic genes, may reveal greater information content if a higher threshold is chosen.
Using an artificial mixture of known pea and Sclerotinia ESTs, we found the error rate using the BLAST method was significantly lower than the triplet nucleotide frequencies method (Table 7).
Gas analyzers were calibrated using a certified gas mixture of known O2 and CO2 concentrations, and the flowmeter was calibrated using a 3 L syringe, 4 times daily (07:00h, 11 00h, 15:00h, and 18 00h).
