1 Use this equation to calculate the concentration of the protein sample based on the measured absorbance. 2  Note: If the absorbance of the test sample is outside of the absorbance range for the standards, then the assay must be repeated with a more appropriate dilution, if any.
Click to see more answers to your questions. Simply put Japanese Knotweed is not poisonous, and isnât harmful to humans like other invasive species. In fact the knotweed can be used as a food source with a taste and texture likened to rhubarb.Apparently it can also be brewed into a type of beer.Now we are not suggesting you rush out and cook up a nice pie.lick to see more answers to your questions. Simply put Japanese Knotweed is not poisonous, and isnât harmful to humans like other invasive species. In fact the knotweed can be used as a food source with a taste and texture likened to rhubarb.
The sap, flowers, seeds, stems, roots and leaves of the foxglove plant are all toxic if ingested. The largest concentration of the toxin that makes foxglove poisonous occurs in vigorously growing shoots. Even if the plant parts are dried or boiled, the toxic ingredients remain active.oxglove flowers bloom from May to June in shades of pink, purple or white. Foxglove plants freely self-seed under favorable conditions, which means it can establish itself in your garden and persist for years like a perennial plant. Although it is native to Europe, foxglove is widely cultivated in the United States.