CAJ | 학술논문

建立了用分光光度法测定丁烷四羧酸中催化剂钨的含量的方法.以KSCN为显色剂,盐酸溶液为pH调节剂,用TiCl3作为还原剂条件下进行显色测定.实验结果表明,钨的浓度在100~500ppm间与吸光度呈良好的线性关系(R2=0.9999).实验表明该法准确,快捷,操作简便,应用于丁烷四羧酸合成工艺中催化剂钨的含量的测定,取得了很好的结果.
건립료용분광광도법측정정완사최산중최화제오적함량적방법.이KSCN위현색제,염산용액위pH조절제,용TiCl3작위환원제조건하진행현색측정.실험결과표명,오적농도재100~500ppm간여흡광도정량호적선성관계(R2=0.9999).실험표명해법준학,쾌첩,조작간편,응용우정완사최산합성공예중최화제오적함량적측정,취득료흔호적결과.
A method for determining the content of tungsten in the four carboxylic acid with a spectrophotometer was established. KSCN was used as the color reagent, hydrochloric acid solution was used as pH adjusting agent, and the color was determined by TiCl3 as the reducing agent. The experimental results show that the concentra-tion of tungsten in the 100~500ppm is linear with the absorbance (R2=0.9999). Experiments show that thismethod is accurate, fast and easy to operate. It has been applied to the determination of the content of catalyst- tungsten inthe process of synthesizing four carboxylic acid, which has achieved good effects.