CAJ | 학술논문

将多波长薄层扫描和化学计量学相结合，应用斜投影法对混合染料中阳离子黄X-5GL和X-8GL进行分析.斜投影法利用投影将被测向量光谱信号从混合光谱信号中分离出来，对分离的信号进行计算分析以获得被测组分的含量.结果表明：2种染料点样量在0.5~2.5μg时，点样量与吸光度积分值具有良好的线性关系，相关系数R分别为0.9994、0.9995；所测得的混合染液中阳离子黄X-5GL和X-8GL的RSD较多波长薄层展开定量法小.
장다파장박층소묘화화학계량학상결합，응용사투영법대혼합염료중양리자황X-5GL화X-8GL진행분석.사투영법이용투영장피측향량광보신호종혼합광보신호중분리출래，대분리적신호진행계산분석이획득피측조분적함량.결과표명：2충염료점양량재0.5~2.5μg시，점양량여흡광도적분치구유량호적선성관계，상관계수R분별위0.9994、0.9995；소측득적혼합염액중양리자황X-5GL화X-8GL적RSD교다파장박층전개정량법소.
Cationic yel ow X-5GL and X-8GL mixed dye was analyzed using the multi-wavelength thin layer scanning and chemometrics through oblique projection method. Oblique projection method could sepa-rate quantity spectral signal from mixed spectrum signal using projection, and calculate and analyze the sepa-rated signal to obtain the content of measured component. The results showed that when two kinds of dye sample quantity range was 0.5~2.5 μg, the sample quantity and absorbance integral value had a good linear re-lationship, and the correlation coefficient R were 0.999 4 and 0.999 5, respectively. The measured RSD of cat-ionic yel ow X-5GL and X-8GL in the mixed dye solution were lower than the traditional TLC method.