The phrase "as reference standards" is correct and usable in written English.
It can be used when discussing benchmarks or criteria that are used for comparison or evaluation in a specific context.
Example: "The results of the experiment were compared to the data collected from previous studies, using those studies as reference standards."
Alternatives: "as benchmark criteria" or "as comparison metrics".
Olssøn et al. [ 37] used self-report measures as reference standards; the other studies used (standardized) psychiatric interviews.
100 μL of standards was mixed with 100 μL of the internal standard solution and used as reference standards.
Using in vitro transcribed RNA as reference standards, we demonstrated that the assay is highly specific, with cross-reactivity less than 0.2%.
Research suggests that clinical examination of the lumbar spine and pelvis is unable to predict the results of diagnostic injections used as reference standards.
These are now available for use in hybridoma selection and as reference standards for evaluating the specificity of currently available anti-swine IgG antibodies.
Thick continuous sequences of limestones in which they occur have been especially studied in North America, Europe, and Morocco, and the succession of conodonts there serve as reference standards.
Then, the calculated efficiency of the URFC system at each operation mode was compared with that of specialized devices of PEM electrolyzer and PEM fuel cell as reference standards.
Compared with classical molecular biology protocols and cytogenetic analyses used as reference standards, results of the 26-plex RT-PCR method were concordant in all 204 (100%) cases of adult AML tested.
AA and gallic acid (GA) were used as reference standards.
As specified in the European pharmacopeia 8, FDOPA, L-DOPA, 6-hydroxy-DOPA were used as reference standards.
Reference samples of IAEA OH-1, OH-2, OH-3 and OH-4 were used as reference standards, absolute values of which were calibrated on the VSMOW scale.
