Data for: DATUVINK pilot study: A potential non-invasive methodology for dating ballpoint pen inks using multivariate chemometrics based on their UV-vis-NIR reflectance spectra

Raw dat file: Raw data of diffuse reflectance measurements of all ink samples. The spectra were registered from 200 to 2500 nm with a resolution of 0.1 nm (600 nm min-1 scan speed). Each ink sample column gives the reflectance data measured (R %) at each registered wavelength.

SIMCA file: Information and data used for chemometric analysis. All the spectra registered were smoothed (1:50) and transformed to absorbance. Each column gives the absorbance measured at each registered wavelength for each ink sample. Accelerated aging time of each ink sample is expressed in logarithmic function. This information was treated with SIMCA software in order to carry out the chemometric analysis.

原始数据文件（Raw dat file）：所有油墨样品的漫反射测量原始数据。光谱的采集区间为200 nm至2500 nm，分辨率为0.1 nm，扫描速度为600 nm·min⁻¹。每一列油墨样品的数据均对应其在各采集波长下测得的反射率（R %）。
SIMCA文件：用于化学计量学分析的信息与数据集。所有采集得到的光谱均经过平滑处理（比例1:50）并转换为吸光度。每一列数据对应各油墨样品在各采集波长下测得的吸光度。各油墨样品的加速老化时间以对数函数形式表示。该数据集已通过SIMCA软件进行处理，以开展化学计量学分析。