摘要
本文讨论了反相离子对液相色谱法分离和检测稀土-4-(2-吡啶偶氮)间苯二酚螯合物的各种条件,在12 min内完成了9种稀土螫合物的分离,校正曲线的线性范围是(ppm):La(0.01～3.20),Ce(0.03～2.8),Pr(0.06～3.5),Nd(0.05～3.8),Sm(0.01～3.0),Eu(0.05～3.4),Tb(0.02～3.0),Ho(0.01～3.4),Er(0.06～4.0).变异系数小于1.2％.
A method for separation and determination of nine lanthanides chelates in 12 min by using reversed phase ion pair high performance liquid chromatography with 4- (2-pyridylazo) resercinol (PAR) as the chromophoric reagent has been studied. The optimum condition of separation and determination are also described in this paper. The calibration curve is a linear function of concentration in the range of 0. 01 -3. 0 ppm for La, 0. 03-2. 8 ppm for Ce, 0. 06-3. 50 ppm for Nd, 0. 05-3. 8 ppm for Pr, 0. 01 -3. 0 ppm for Sm, 0. 05-3. 40 ppm for Eu, 0. 02-3. 0 ppm for Tb, 0. 01 -3. 4 ppm for Ho and 0. 02- 4. 00 ppm for Er. The variational coefficient is found to be less than
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
1991年第2期169-172,共4页
Chemical Journal of Chinese Universities
基金
甘肃省自然科学基金
甘肃省教委资助课题
关键词
稀土元素
PAR
螯合物
高效液相色谱
Separation and determination of rare earths, Reversed phase ion pair high performance liquid chromatography, 4-(2-pyridylazo) resercinol
