The paper reports a basic method to extract natural pigment from sugarcane skin and carries out the determination of pigment by the ultraviolet and visible light spectrum and infrared spectrum.
研究了以紫色甘蔗皮为原料提取色素的基本方法，并进行了紫外可见光谱、红外光谱的测定。
2
Our main products include basic Inorganic and Organic chemicals, Pigment &Dyestuff and feedstuff, which have enjoyed great popularity in the world market, with good quality and reasonable prices.
我们的主要产品包括基本有机或无机化工、色素及饲料很受欢迎，在世界市场上，以优良的品质，合理的价格…
3
The production technology of basic lead carbonate pearlescent pigment by pushing process, glycol methoxymethane method and inversing phase method were introduced.