The concentration of proline was determined by reference to a standard concentration curve.
Primers and a probe for sequences of the surface gene of HBV were designed and quantification achieved by reference to standards containing known concentrations of the target sequence.
Kinetic measurements of the formation of a coloured formazan derivative was used after nutrient broth addition to estimate initial cell concentrations by reference to Escherichia coli added as internal standard.
Absorbance readings were extrapolated to absolute nitrite concentrations by reference to a nitrite standard curve (ranging from 12.5 to 100 uM).
Absorbance readings were extrapolated to absolute nitrite concentrations by reference to a nitrite standard curve (ranging from 12.5 to 100 μM).
All the samples were run in duplicate and the measured values of light emission at 420 nm were converted into absolute TGF β1 concentrations by reference to the standard curve.
Platinium concentrations were derived by reference to a standard solution calibration curve using the mean concentration from the three Pt isotopes.
Polymer concentration in solution was determined by reference to a standard curve consisting of known concentrations of functionalised γ-PGA in TRIS buffer solution.
Below we interpret the metabolite clusters by reference to metabolites with >10-fold concentration changes across DPA in both Gh and Gb fiber.
Thrombin concentrations were determined by reference to a standard curve and the level of thrombin generated used as a relative measurement of prothrombinase concentration compared to measurements with intact FVa.
