FLOW-INJECTION DETERMINATION OF WATER IN ORGANIC-SOLVENTS BY NEAR-INFRARED SPECTROMETRY

被引：26

作者：

GARRIGUES, S ^{[1
]}

GALLIGNANI, M ^{[1
]}

DELAGUARDIA, M ^{[1
]}

机构：

[1] UNIV VALENCIA,DEPT ANALYT CHEM,50 DR MOLINER ST,E-46100 BURJASSOT,SPAIN

来源：

ANALYTICA CHIMICA ACTA | 1993年 / 281卷 / 02期

关键词：

FLOW INJECTION; INFRARED SPECTROMETRY; DICHLOROMETHANE; ISOBUTYL METHYL KETONE; ORGANIC SOLVENTS; WATERS;

D O I：

10.1016/0003-2670(93)85180-R

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A flow-injection (FI) procedure was developed for the direct determination Of Water in organic solvents by using the O-H stretch absorbance band of water in the near-infrared (NIR) region. Dichloromethane was employed as a test solvent to study the influence of the flow parameters (carrier flow and sample injection volume) and time interval on the sensitivity and repeatability of the FI-NIR measurements. The developed procedure permits the determination of water in dichloromethane and isobutyl methyl ketone samples with limits of detection of 0.01 and 0.005% (v/v), respectively. Real and spiked samples of solvents were analysed by FI-NIR and accurate results were found. The method is rapid, it does not require any pretreatment of samples and it is free from contamination of samples by atmospheric humidity .

引用

页码：259 / 264

页数：6

共 28 条

[21] ONLINE DETERMINATION OF FUEL QUALITY PARAMETERS USING NEAR-INFRARED SPECTROMETRY WITH FIBER OPTICS AND MULTIVARIATE CALIBRATION [J].

PARISI, AF ;

NOGUEIRAS, L ;

PRIETO, H .

ANALYTICA CHIMICA ACTA, 1990, 238 (01) :95-100

[22]

PILIPENKO AT, 1989, ZH ANAL KHIM, V44, P51

[23]

PILIPENKO AT, 1985, OTKRYTIYA IZOBRET, V26, P176

[24]

PILIPENKO AT, 1986, ZH ANAL KHIM, V41, P94

[25] DETERMINATION OF WATER IN 1,1-DIMETHYLHYDRAZINE, DIETHYLENETRIAMINE, AND MIXTURES [J].

STREIM, HG ;

SMITH, JR ;

BOYCE, EA .

ANALYTICAL CHEMISTRY, 1961, 33 (01) :85-&

[26] DETERMINATION OF MICROGRAM QUANTITIES OF WATER IN ORGANIC SOLVENTS AND ELECTROLYTES BY LEAD TETRAACETATE METHOD [J].

THOMPSON, CD ;

BOGAR, FD ;

FOLEY, RT .

ANALYTICAL CHEMISTRY, 1970, 42 (13) :1474-&

[27]

1984, METROHM KF PROCESSOR, P64

[28]

1988, OTKRYTIYA IZOBRET, V43, P184

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