摘要
利用赤霉素作为显色剂，实验测定煤中磷的含量．结果表明，在1．0mol／L盐酸介质中，将磷钼杂多酸还原成磷钼杂多蓝，其最大吸收波长为670nm，表观摩尔吸光系数为1．39×10^4L·mol^-1·cm^-1，线性范围为0～0．1mg／50mL．该法准确、可靠．
The experimental study was conducted on the use of gibberellin as a new color reagent for the phosphorus in coal. The absorption of the resulted heteropoly acid of phosphorus was reduced to heteropoly blues by gibberellin in the media with 1.0mol/L of hydrochloric acid. The heteropoly blues was observed at 670nm with molar absorptivity of 1.39 × 10^4L · mol^-1 · cm^-1. The liner ranges obtained between 0-0. 1mg/50mL. The proposed procedure was accurate and reliable.
出处
《西安工程科技学院学报》
2006年第6期741-744,共4页
Journal of Xi an University of Engineering Science and Technology
关键词
煤
磷
赤霉素
钼蓝法
coal
phosphorus
gibberellin
molybdenum blue method
