The generation and separation principle of PT acid in PTA products is elaborated, and the main impact factors for PT acid content are also analyzed.
阐述了精对苯二甲酸产品中对甲基苯甲酸的产生与分离原理，分析了影响对甲基苯甲酸含量的主要因素；
2
The modified method can be applied to the analysis of Pt in the solution after the separation by extraction or ion-exchange process in the above mentioned media.
经过改进的方法应用于上述介质中萃取或离子交换分离后的溶液中铂的分析。
3
The present paper describes the optimum conditions of separation and preconcentration of Au, Pd and Pt in geological samples with gold orange G chelate-forming resin.