Simultaneous kinetic spectrophotometric determination of five phenolic compounds by reaction with p-aminophenol, using partial least squares data treatment

被引:21
作者
delaGuardia, M [1 ]
Khalaf, KD [1 ]
Hasan, BA [1 ]
MoralesRubio, A [1 ]
Arias, JJ [1 ]
GarciaFraga, JM [1 ]
Jimenez, AI [1 ]
Jemenez, F [1 ]
机构
[1] UNIV LA LAGUNA, DEPT ANALYT CHEM, TENERIFE, SPAIN
关键词
resorcinol; m-aminophenol; o-cresol; phenol; m-cresol; stopped flow analysis; partial least squares; spectrophotometry;
D O I
10.1039/an9962101321
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
A fast and accurate procedure has been developed for the simultaneous determination of resorcinol, m-aminophenol, o-cresol, phenol and m-cresol in waters, The method is based on the reaction between the aforementioned phenolic compounds, at concentration levels of ppm, and 300 ppm of p-aminophenol in 0.05 mol I-1 NaOH and in the presence of 0.004 mol l(-1) KIO4. The treatment of absorbance data, between 400 and 700 nm, obtained at interval times of 20 s between 40 and 120 s and 40 s between 120 and 600 s, by means of the use of Partial Least Squares 2 (PLS-2), using the UNSCRAMBLER program, suggested that the use of 7 factors can explain more than 99.5% of the residual variance, The method has been applied to the analysis of synthetic samples, not employed for calibration, and average errors lower than 4% were found.
引用
收藏
页码:1321 / 1326
页数:6
相关论文
共 20 条
[1]  
*AM IND HYG ASS, 1991, VAL LIM IND BIOL EXP
[2]   INDIRECT FLUORESCENCE DETECTION IN MICELLAR ELECTROKINETIC CHROMATOGRAPHY [J].
AMANKWA, LN ;
KUHR, WG .
ANALYTICAL CHEMISTRY, 1991, 63 (17) :1733-1737
[3]   KINETIC SPECTROPHOTOMETRIC DETERMINATION OF GA(III)-AL(III) MIXTURES BY STOPPED-FLOW INJECTION-ANALYSIS USING PRINCIPAL COMPONENT REGRESSION [J].
BLANCO, M ;
COELLO, J ;
ITURRIAGA, H ;
MASPOCH, S ;
RIBA, J ;
ROVIRA, E .
TALANTA, 1993, 40 (02) :261-267
[4]   DETERMINATION OF PHENOL, M-CRESOL, O-CRESOL AND P-CRESOL, P-AMINOPHENOL AND P-NITROPHENOL IN URINE BY HIGH-PERFORMANCE LIQUID-CHROMATOGRAPHY [J].
BREGA, A ;
PRANDINI, P ;
AMAGLIO, C ;
PAFUMI, E .
JOURNAL OF CHROMATOGRAPHY, 1990, 535 (1-2) :311-316
[5]   COMPUTER METHOD FOR THE SIMULTANEOUS KINETIC DETERMINATION OF COMPOUNDS IN MIXTURES BASED ON THE USE OF DIODE-ARRAY SPECTROPHOTOMETRY [J].
CLADERA, A ;
GOMEZ, E ;
ESTELA, JM ;
CERDA, V ;
CERDA, JL .
ANALYTICA CHIMICA ACTA, 1993, 272 (02) :339-344
[6]  
*COMP AID MOD, 1993, UNSCR EX V 5 0
[7]   DETERMINATION OF PHENOLS AND CRESOLS IN ALUMINUM-BACKED PAPER BY HIGH-PERFORMANCE LIQUID-CHROMATOGRAPHY [J].
DINUNZIO, C ;
PARISI, G ;
SANTORO, P ;
RICCI, PA .
JOURNAL OF CHROMATOGRAPHY, 1987, 392 :454-459
[8]   APPLICATION OF THE PARTIAL LEAST-SQUARES CALIBRATION METHOD TO THE SIMULTANEOUS KINETIC DETERMINATION OF PROPOXUR, CARBARYL, ETHIOFENCARB AND FORMETANATE [J].
GARCIA, JM ;
JIMENEZ, AI ;
ARIAS, JJ ;
KHALAF, KD ;
MORALESRUBIO, A ;
DELAGUARDIA, M .
ANALYST, 1995, 120 (02) :313-317
[9]   EVALUATION OF MULTICOMPONENT KINETIC-ANALYSIS DATA BY A PARTIAL LEAST-SQUARES CALIBRATION METHOD [J].
HAVEL, J ;
JIMENEZ, F ;
BAUTISTA, RD ;
LEON, JJA .
ANALYST, 1993, 118 (11) :1355-1360
[10]   SIMULTANEOUS GAS-CHROMATOGRAPHIC ANALYSIS OF LOWER FATTY-ACIDS, PHENOLS AND INDOLES IN FECES AND SALIVA USING A FUSED-SILICA GLASS-CAPILLARY COLUMN [J].
HOSHIKA, Y ;
MURAYAMA, N .
ANALYST, 1983, 108 (1289) :984-990