Sentence examples for using an internal standard from inspiring English sources

Samples were prepared volumetrically using an internal standard solution in 2% nitric acid.

Using an internal standard and Rietveld refinement, we calculated the lattice parameters of the samples.

The detection wavelength was 254 nm and the retention time of ATP was 16.3 min. ATP was calculated using an internal standard method.

Using an internal standard at 1101 cm−1 (νsC-O-C, ρCH3), a model for calculation of the 3HV content was developed.

What is more, taking DHB/N-MA as an example, quantitative analysis of fructo-oligosaccharide mixtures extracted and identified from rice noodles has been accomplished sensitively using an internal standard method.

In Figure 2, the presence of diacylglycerol (DG) with higher retention times, 40 to 60 min, can also be seen, which do not allow its integration into the GC chromatogram, so that it is necessary to determine DG together and TG by using an internal standard such as cetane here employed.

DIGE studies use an internal standard to help eliminate gel-to-gel variation [39].

Quantification was performed using an internal cDNA standard curve.

Scandium was used as an internal standard and analysed by using the 424.683-nm emission line.

Dodecane was used as an internal standard.

Solifenacin-d5 (SFD5) used as an internal standard.