Pretreatment of D-101 macroporous adsorption resin
- VernacularTitle:D-101型大孔吸附树脂预处理方法的研究
- Author:
Cunqin JIA
- Publication Type:Journal Article
- Keywords:
D-101 macroporous adsorption resin(D-101 MAR);
pretreatment;
toluene;
naphthalene
- From:
Chinese Traditional and Herbal Drugs
1994;0(02):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To develop a method for the pretreatment of D-101 macroporous adsorption resin(MAR).Methods The influence factors of pretreatment conditions were studied by orthogonal test according to the content of toluene and naphthalene in the eluate and its UV absorbance(254 nm).Results Solvent and temperature were two key factors to the pretreatment process.The optimized method was established.D-101 MAR was eluted by 2% NaOH for 2 bed volumes(BV) of MAR and then by ethanol for only 3.5 BV at 2 BV/h at 60 ℃.At the end of elution,the UV absorbance of ethanol eluate was about 0.4.Conclusion The operation of D-101 MAR pretreatment is easy and the cycle is short.The process has little contamination to the environment and can be monitored by a on-line UV monitor.
