PDF(3622 KB)
Study on the Variation of Three Solvents in Black Gel Pen Handwriting with Writing Time Based on Gas Chromatography Technology
HE Haiyang, ZHAO Pengcheng, HE Ning, NI Yunchang, LI Zehan
Physical Testing and Chemical Analysis Part B:Chemical Analgsis ›› 2021, Vol. 57 ›› Issue (9) : 769-775.
PDF(3622 KB)
PDF(3622 KB)
Study on the Variation of Three Solvents in Black Gel Pen Handwriting with Writing Time Based on Gas Chromatography Technology
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