SPECTROFLUORIMETRIC DETERMINATION OF SULFATE IN WATERS IN NORMAL AND OPEN CLOSED FLOW-INJECTION CONFIGURATIONS

被引：12

作者：

FERNANDEZBAND, B ^{[1
]}

LINARES, P ^{[1
]}

DECASTRO, MDL ^{[1
]}

VALCARCEL, M ^{[1
]}

机构：

[1] UNIV CORDOBA,FAC SCI,DEPT ANALYT CHEM,E-14004 CORDOBA,SPAIN

来源：

ANALYST | 1991年 / 116卷 / 03期

关键词：

SULFATE; SPECTROFLUORIMETRY; FLOW INJECTION; OPEN CLOSED SYSTEM; TERNARY COMPLEX;

D O I：

10.1039/an9911600305

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A spectrofluorimetric method for the determination of sulphate, based on the formation of a ternary complex with biacetyl monoxime nicotinylhydrazone and zirconium is described. Two flow injection manifolds [normal (nFl) and open/closed] were optimized and used for the determination of sulphate in various water samples with good selectivity. The repeatability and linear range of the calibration graphs was better for the open/closed than for the nFl system (relative standard deviation 2.33% versus 3.51%, and linearity 1.5-150 mu-g ml-1 versus two linear portions of 2-30 and 30-150-mu-g ml-1), but the sampling rate using the nFl configuration (30 samples h-1) was at least twice that of the open/closed system.

引用

页码：305 / 307

页数：3

共 23 条

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