DETERMINATION OF DIDEALKYLATRAZINE IN WATER BY GRAPHITIZED CARBON-BLACK EXTRACTION FOLLOWED BY GAS-CHROMATOGRAPHY HIGH-RESOLUTION MASS-SPECTROMETRY

被引:22
作者
CAI, ZW
GROSS, ML
SPALDING, RF
机构
[1] UNIV NEBRASKA,DEPT CHEM,MIDWEST CTR MASS SPECTROMETRY,LINCOLN,NE 68588
[2] UNIV NEBRASKA,CTR WATER,LINCOLN,NE 68588
基金
美国国家科学基金会;
关键词
GAS CHROMATOGRAPHY; MASS SPECTROMETRY; DIDEALKYLATRAZINE; GRAPHITIZED CARBON BLACK EXTRACTION; WATERS;
D O I
10.1016/0003-2670(94)00508-J
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
A highly specific and sensitive method has been developed for determining trace levels of didealkylatrazine (DDA), one of the dealkylated products of atrazine degradation occurring in ground and surface waters. The analyte was isolated efficiently from deionized water and ground water by liquid-solid extraction via a graphitized carbon black cartridge, and the recoveries are greater than 80%. These recoveries are an order of magnitude greater than those achieved by liquid-liquid extraction (dichloromethane) and solid-phase extraction with a C-18 bonded silica cartridge. Analysis was performed by gas chromatography-high resolution mass spectrometry; mass profiles were acquired in the selected ion monitoring mode. A precision of < 20% (relative standard deviation) was obtained for six deionized water samples fortified with DDA at the 500 ppt level. The average accuracy is 85% of the true amount for the deionized water samples. The detection limit for a 200-ml sample is 2 ppt. The method has been successfully applied to determine DDA in ground water.
引用
收藏
页码:67 / 73
页数:7
相关论文
共 18 条
[1]   SOLID-PHASE EXTRACTION AND CAPILLARY GAS-CHROMATOGRAPHIC DETERMINATION OF TRIAZINE HERBICIDES IN WATER [J].
BARDALAYE, PC ;
WHEELER, WB .
INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY, 1986, 25 (1-3) :105-113
[2]   EXTRACTION AND ISOLATION OF TRIAZINE HERBICIDES FROM WATER AND VEGETABLES BY A DOUBLE TRAP TANDEM SYSTEM [J].
BATTISTA, M ;
DICORCIA, A ;
MARCHETTI, M .
ANALYTICAL CHEMISTRY, 1989, 61 (09) :935-939
[3]  
CAI Z, 1994, 42ND ASMS C MASS SPE
[4]   LIQUID-SOLID EXTRACTION AND FAST-ATOM-BOMBARDMENT HIGH-RESOLUTION MASS-SPECTROMETRY FOR THE DETERMINATION OF HYDROXYATRAZINE IN WATER AT LOW-PPT LEVELS [J].
CAI, ZW ;
RAMANUJAM, VMS ;
GROSS, ML ;
MONSON, SJ ;
CASSADA, DA ;
SPALDING, RF .
ANALYTICAL CHEMISTRY, 1994, 66 (23) :4202-4209
[5]   DETERMINATION OF ATRAZINE IN WATER AT LOW-PARTS-PER-TRILLION AND SUB-PARTS-PER-TRILLION LEVELS BY USING SOLID-PHASE EXTRACTION AND GAS-CHROMATOGRAPHY HIGH-RESOLUTION MASS-SPECTROMETRY [J].
CAI, ZW ;
RAMANUJAM, VMS ;
GIBLIN, DE ;
GROSS, ML ;
SPALDING, RF .
ANALYTICAL CHEMISTRY, 1993, 65 (01) :21-26
[6]   DETERMINATION OF ATRAZINE, DEETHYLATRAZINE AND DEISOPROPYLATRAZINE IN WATER AND SEDIMENT BY ISOTOPE-DILUTION GAS-CHROMATOGRAPHY MASS-SPECTROMETRY [J].
CASSADA, DA ;
SPALDING, RF ;
CAI, Z ;
GROSS, ML .
ANALYTICA CHIMICA ACTA, 1994, 287 (1-2) :7-15
[7]   MULTIRESIDUE METHOD FOR PESTICIDES IN DRINKING-WATER USING A GRAPHITIZED CARBON-BLACK CARTRIDGE EXTRACTION AND LIQUID-CHROMATOGRAPHIC ANALYSIS [J].
DICORCIA, A ;
MARCHETTI, M .
ANALYTICAL CHEMISTRY, 1991, 63 (06) :580-585
[8]   GRAPHITIZED CARBON-BLACK EXTRACTION CARTRIDGES FOR MONITORING POLAR PESTICIDES IN WATER [J].
DICORCIA, A ;
SAMPERI, R ;
MARCOMINI, A ;
STELLUTO, S .
ANALYTICAL CHEMISTRY, 1993, 65 (07) :907-912
[9]  
CORCIA AD, 1987, J CHROMATOGR, V405, P357
[10]   CONFIRMATION OF CHLOROTRIAZINE PESTICIDES, THEIR DEGRADATION PRODUCTS AND ORGANOPHOSPHORUS PESTICIDES IN SOIL SAMPLES USING GAS-CHROMATOGRAPHY MASS-SPECTROMETRY WITH ELECTRON-IMPACT AND POSITIVE-ION AND NEGATIVE-ION CHEMICAL IONIZATION [J].
DURAND, G ;
BARCELO, D .
ANALYTICA CHIMICA ACTA, 1991, 243 (02) :259-271