ROOM-TEMPERATURE PHOSPHORESCENCE OF BIOGENIC INDOLES IN LOW-BACKGROUND PAPER ENHANCED BY HEAVY-ATOM SALTS AND SODIUM DODECYL-SULFATE

被引：19

作者：

GIOIA, SMC ^{[1
]}

CAMPIGLIA, AD ^{[1
]}

机构：

[1] UNIV BRASILIA,DEPT QUIM,BR-70910 BRASILIA,DF,BRAZIL

来源：

ANALYTICA CHIMICA ACTA | 1994年 / 287卷 / 1-2期

关键词：

PHOSPHORIMETRY; BIOGENIC INDOLES; MATRIX MODIFIED SUBSTRATES;

D O I：

10.1016/0003-2670(94)85105-0

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Room temperature phosphorescence of eight biogenic indoles was studied on matrix modified substrates. Whatman chromatography paper previously treated for background reduction was used as a solid substrate. The phosphorescence characteristics of the studied compounds were observed in the presence of sodium iodide, thallium(I) nitrate, silver(I) nitrate and lead(II) acetate. The heavy atom efficiency was increased by using sodium dodecyl sulfate in the matrix of the phosphor. The analytical figures of merit were obtained for each compound under the best experimental conditions for maximum phosphorescence emission. Limits of detection ranging from 0.9 ng (indole-2-carboxylic acid and indole-3-acetic acid) to 11.4 ng (3-methylindole) were estimated.

引用

页码：89 / 94

页数：6

共 37 条

[1] THE EFFECTS OF ION-EXCHANGE FILTER PAPERS AND OF HEAVY-ATOMS ON ROOM-TEMPERATURE PHOSPHORESCENCE OF SEVERAL INDOLES [J].