The phrase "a reference spectrum of" is correct and usable in written English.
It can be used in scientific or technical contexts, particularly in fields like chemistry, physics, or spectroscopy, to describe a spectrum that serves as a standard or comparison.
Example: "The analysis was conducted using a reference spectrum of the known compound to identify the unknown sample."
Alternatives: "a standard spectrum of" or "a benchmark spectrum of".
To compare, a reference spectrum of bulk Si is also shown.
b Raman spectrum of the blue pigment (red) in comparison with a reference spectrum of indigo (black).
108r of Codex Millenarius Maior performed with Raman and XRF. a Raman spectrum of the black ink (red) and a reference spectrum of iron gall ink (black).
It should be noted that the popular Infrared and Raman Users Group (IRUG) spectral database does not contain a reference spectrum of aniline black [14], which may have contributed to the lack of observed occurrences for this historically important pigment.
(b) Normalized EXAFS and corresponding radial structure functions (uncorrected for phase shift of backscattering atoms) for zinc in sediment samples from core SC4 (at 1.5 and 34.5 cm) and core C3-9 (55 comparedared to a reference spectrum of crystalline sphalerite (ZnS s)).
Carbon (A) and oxygen (B) NEXAFS spectra of a Talens PY3 yellow paint film after swabbing with water showed features similar to a reference spectrum of Triton™ X-405 providing evidence for early stages of aqueous surfactant extraction from the bulk of the paint film.
The retention times of the components are summarized in Table 2. Anisole - the product of phenol O-alkylation was not included as a reference spectrum for the method of FTIR analysis, because preliminary tests with the GC-MS analyzer showed that it does not occur in the reaction products on the TZC-3/1 catalyst.
As a reference spectrum, the XPS C 1s spectrum of the pristine MWCNTs was recorded and is shown in Fig. 4. Based on the previous studies [19, 25], the spectra are deconvoluted into five Gaussian peaks centered at 284.5, 285.1, 286.2, 287.2, and 288.9 eV.
Each spectrum was aligned to a reference spectrum representing the average of components detected in urine samples from all 45 mice.
The energy resolution of our measured absorption spectrum, which is controlled by several parameters29,30, is obtained to be 0.89 eV through a convolution calculation of a reference spectrum with known energy resolution, and the detailed calculations are described in the caption of Figure S6 in SI.
The integrity of the SiC shell (no crack within the shell) can be assessed by the ultrasonic vibration spectrum of the HTR particle, which is significantly changed, compared to the reference spectrum of a defect-free particle.
