摘要
以酸性品红染料和坚木栲胶为实验材料,采用双波长光度法测定染料和植物鞣剂混合液中各组分浓度,为研究染料与植物鞣剂共基质降解性能提供表征方法。酸性品红染料和坚木栲胶溶液标准曲线回归方程分别为ΔA_(458nm-430nm)=0.00491×C_dye(R^2=0.99992)和ΔA_(280nm-462nm)=0.01254×C_tannin(R^2=0.9995)。用双波长光度法测定其精密度、重现性和加样回收率,酸性品红染料和坚木栲胶的RSD分别在0.73%~4.02%和0.60%~4.36%范围内。与利用贡献因子的CODCr测定方法相比较,双波长光度法测定共基质中有色组分的浓度具有简便、快速、准确可靠的特点。
Acid fuchsin dye and Quebracho tannin extract as the experimental materials, dual-wavelength spectrophotometry was used to determine the concentrations of dye and vegetable tanning agent in a mixture solution, and a quantitative method was established to assay the degradability of the two materials in a study of cosubstrate degradation. The regression equations of standard curves to describe Acid fuchsin dye and Quebracho tannin extract respectively was △A（458nm-430nm）=0.00491xCdye（R2=0.99992）and△A（280nm-462nm）=0.01254xCtannin（R2=0.9995）. The precision, reproducibility and recovery rate were determined, and the relative standard deviation （RSD） of Acid fuehsin dye and Quebracho tannin extract was 0.73%-4.02% and 0.60%-4.36% （RSD） respectively. Dual-wavelength spectrophotometry is convenient, rapid, accurate and reliable for the determination of the concentration of colored compounds in the cosubstrate, compared with the CODc determination by analyzing the contribute factor.
出处
《西部皮革》
2012年第16期34-38,42,共6页
West Leather
关键词
双波长光度法
共基质降解
染料
植物鞣剂
dual-wavelength spectrophotometry
co-substrate degradation
dye
vegetable tanning agent
作者简介
郑力文（1985-），男，四川人，硕士研究生在读。电话：13256414017邮箱：zhengliwen516@163．com
