Application of Doehlert designs in the optimization of experimental variables associated with the simultaneous solvent extraction of several metals

被引:24
作者
Gazquez, D [1 ]
Sanchez-Vinas, M [1 ]
Bagur, MG [1 ]
Garcia, G [1 ]
机构
[1] Univ Granada, Fac Sci, Dept Analyt Chem, E-18071 Granada, Spain
关键词
Doehlert design; chemometrics; solvent extraction; metal;
D O I
10.1039/a706817d
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
An experimental design (Doehlert matrix design) has been carried out in this study to optimize the experimental variables for the simultaneous solvent extraction of Fe, V, Mo and Sn in isobutyl methyl ketone-tributyl phosphate with 5,5'-methylenedisalicylohydroxamic acid. Four variables were examined: pH and perchlorate, chelating reagent and synergistic agent concentrations. Two designs of tao factors were performed, giving two response surfaces, one for each two factors. The plots of the analytical signal versus the experimental variables selected give two response surfaces which allow the optimum conditions to be identified for the quantitative extraction of the four metal ions. This optimization strategy is simple and quick, compared with the traditional univariate methodology.
引用
收藏
页码:105 / 108
页数:4
相关论文
共 15 条
[1]   SYNERGISTIC EXTRACTION ATOMIC SPECTROPHOTOMETRIC DETERMINATION OF VANADIUM IN FOODS AND PETROLEUM CRUDES WITH 5,5'-METHYLENEDISALICYLOHYDROXAMIC ACID (MEDSHA) [J].
BAGUR, G ;
GAZQUEZ, D ;
SANCHEZ, M ;
MARTIN, AM .
ANALYTICAL LETTERS, 1993, 26 (01) :125-140
[3]  
BOX GEP, 1989, ESTADISTICA INVESTIG, P525
[4]   DETERMINATION OF IRON BY ATOMIC-ABSORPTION SPECTROMETRY AFTER SYNERGISTIC EXTRACTION OF THE IRON(III) - 5,5'-METHYLENEDISALICYLOHYDROXAMATE - TRIBUTYL-PHOSPHATE COMPLEX [J].
CAPITAN, F ;
GAZQUEZ, D ;
SANCHEZ, M ;
CAPITANVALLVEY, LF .
JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY, 1986, 1 (06) :457-459
[5]  
CAPITANVALLVEY LF, 1982, P INDIAN AS-CHEM SCI, V91, P399
[6]  
Doehlert D.H., 1970, Appl. Stat, V19, P231
[7]  
LO JM, 1982, ANAL CHEM, V54, P2537
[8]  
MARTIN AM, 1994, J AOAC INT, V77, P1627
[9]  
MASSART DL, 1988, CHEMOMETRICS TXB, P293
[10]  
MISHCHENKO VT, 1981, ZAVODSK LAB, V47, P22