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It provides very less probability for instrumental error and does not require a series of standards for calculation of an unknown and also do not require expensive equipment.
A mixture of targeted standards for calculation and three deuterated PAHs as the surrogate standards, D10- acenaphthene (Ace-d10), D10- phenanthrene (Phe-d10), and D12- benzo[a]pyrene(BaP-d12) (Sigma), were used in this study.
In addition, China can expand bond financial types and strategies, set the size of reclamation bonds at the level of a third-party reclamation cost, and set unified standards for calculation.
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Some wells on each plate were coated instead with purified human immunoglobulin G (IgG) or IgE (Abcam, Cambridge, MA) at known concentrations for 1 100, 1 1,000, and 1 10,000 dilutions, which served as standards for calculations of human donor anti-SGS antibody concentrations.
ACT1 gene was used as the standard for calculation of rDNA copy number.
Surgical pathology was considered the gold standard for calculation of sensitivities of CT and US.
(PDF 203 KB) 12284_2012_48_MOESM2_ESM.pdf Additional file 2: Standard curve obtained from reference material (Phytic acid standard) for calculation of phytic acid concentration of seeds.
Positive predictive value (PPV) and negative predictive value (NPV) were determined for each service or medication type and time point, treating administrative records as the gold standard for calculation purposes.
The rpoB gene was used as an internal standard for calculation of expression levels and normalization.
The direct Fick principle remains the gold standard for calculation of hemodynamic indices in which oxygen consumption (V o2) must be known.
While there is no gold standard for calculation of sample sizes for qualitative studies, subject factors, number of items, and application of the questionnaire are important considerations (Sirken et al. 1999, Willis 2005, Blair and Srinath 2008).
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