INVESTIGATIONS ON SAMPLE PRETREATMENT FOR THE DETERMINATION OF SELECTED METALS AND ORGANOCHLORINE COMPOUNDS IN SUSPENDED PARTICULATE MATTER OF THE RIVER ELBE

被引:20
作者
STACHEL, B [1 ]
ELSHOLZ, O [1 ]
REINCKE, H [1 ]
机构
[1] FACHHSCH HAMBURG,FACHBEREICH BIOINGENIEURWESEN PROD TECH & VERFAHR,D-21033 HAMBURG,GERMANY
来源
FRESENIUS JOURNAL OF ANALYTICAL CHEMISTRY | 1995年 / 353卷 / 01期
关键词
D O I
10.1007/BF00322885
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
The River Elbe and some of its tributaries are transporting polluted suspended particulate matter (SPM). Due to the property of SPM to accumulate anthropogenic and nonanthropogenic substances, this matrix is of interest from an analytical point of view. SPM has been collected in 13 sampling devices, placed in monitoring stations along the River Elbe from the Czech border to the North Sea and the embouchures of its tributaries Schwarze Elster, Mulde and Saale. Characterization of the SPM has been carried out by sieving and determining the content of total carbon. Comparative studies with different digestion procedures are presented for the determination of heavy metals and arsenic in the fine grain particle size < 20 mu m of freeze-dried SPM. In a first test the highest concentrations have been found for microwave heating in a closed system when using an acid mixture of HNO3/HF 3:1. Results of an interlaboratory test show the good practicability of the microwave heating digestion method, The determination of organochlorine compounds in a freeze-dried sample by three different extraction methods including supercritical fluid extraction (SFE) with CO2 shows that the highest extraction efficiency is found for the conventional Soxhlet method.
引用
收藏
页码:21 / 27
页数:7
相关论文
共 10 条
[1]   EXTRACTION OF METALS FROM SOILS AND SEWAGE SLUDGES BY REFLUXING WITH AQUA REGIA [J].
BERROW, ML ;
STEIN, WM .
ANALYST, 1983, 108 (1283) :277-285
[2]  
CHESTER TL, 1992, ANAL CHEM, V64, P153
[3]   OFF-LINE SUPERCRITICAL FLUID EXTRACTION-CAPILLARY GC APPLICATIONS IN ENVIRONMENTAL-ANALYSIS [J].
DAVID, F ;
VERSCHUERE, M ;
SANDRA, P .
FRESENIUS JOURNAL OF ANALYTICAL CHEMISTRY, 1992, 344 (10-11) :479-485
[4]  
GUHR H, 1994, ELBE SPANNNUNGSFELD, P94
[5]  
KNOOP G, 1994, KORRESPONDENZ ABWASS, V10, P1836
[6]  
MULLER G, 1994, NATURWISSENSCHAFTEN, V81, P401
[7]  
RUDOLPH A, 1992, AUFBEREITUNGSTECHNIK, V7, P384
[8]   DETERMINATION OF THE ORIGIN OF SUSPENDED MATTER AND SEDIMENTS IN THE ELBE ESTUARY USING NATURAL TRACERS [J].
SCHOER, JH .
ESTUARIES, 1990, 13 (02) :161-172
[9]  
STOEPPLER M, 1994, PROBENAHME AUFSCHLUS, P139
[10]  
1992, BUNDESGESETZBLATT 1, P919