COMPARISON OF THE EFFICIENCIES OF ONLINE AND HIGH-PRESSURE CLOSED VESSEL APPROACHES TO MICROWAVE HEATED SAMPLE DECOMPOSITION

被引：23

作者：

MATUSIEWICZ, H ^{[1
]}

STURGEON, RE ^{[1
]}

机构：

[1] NATL RES COUNCIL CANADA,INST ENVIRONM CHEM,OTTAWA K1A 0R6,ONTARIO,CANADA

来源：

FRESENIUS JOURNAL OF ANALYTICAL CHEMISTRY | 1994年 / 349卷 / 06期

关键词：

D O I：

10.1007/BF00322927

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Two microwave heated digestion techniques have been tested with a view to the evaluation of the effectiveness of wet decomposition procedures: a high-pressure/temperature focused microwave heated and an on-line microwave heated system. The efficiency of decomposition was studied using a number of biological reference materials as well as urine and sewage plant effluent. Oxidation reagents included mixtures of nitric acid, nitric acid/hydrogen peroxide and peroxodisulphate (''Oxi-solv''). The residual carbon content of the digestate was determined coulometrically. Pressurised decomposition of a TFM-Teflon vessel is the most effective procedure (organic material is totally oxidised with nitric acid in a single-step procedure), whereas urine and sewage plant effluent are incompletely decomposed with on-line microwave heated digestion.

引用

页码：428 / 433

页数：6

共 44 条

[1] CHEMICAL OXYGEN-DEMAND DETERMINATION IN WELL AND RIVER WATERS BY FLOW-INJECTION ANALYSIS USING A MICROWAVE-OVEN DURING THE OXIDATION STEP [J].

BALCONI, ML ;

BORGARELLO, M ;

FERRAROLI, R ;

REALINI, F .

ANALYTICA CHIMICA ACTA, 1992, 261 (1-2) :295-299

[2]

BURGUERA JL, 1993, ATOM SPECTROSC, V14, P90

[3] DETERMINATION OF LEAD IN BIOLOGICAL-MATERIALS BY MICROWAVE-ASSISTED MINERALIZATION AND FLOW-INJECTION ELECTROTHERMAL ATOMIC-ABSORPTION SPECTROMETRY [J].

BURGUERA, JL ;

BURGUERA, M .

JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY, 1993, 8 (02) :235-241

[4] DETERMINATION OF ZINC AND CADMIUM IN SMALL AMOUNTS OF BIOLOGICAL TISSUES BY MICROWAVE-ASSISTED DIGESTION AND FLOW-INJECTION ATOMIC-ABSORPTION SPECTROMETRY [J].

BURGUERA, M ;

BURGUERA, JL ;

ALARCON, OM .

ANALYTICA CHIMICA ACTA, 1988, 214 (1-2) :421-427

[5] FLOW-INJECTION AND MICROWAVE-OVEN SAMPLE DECOMPOSITION FOR DETERMINATION OF COPPER, ZINC AND IRON IN WHOLE-BLOOD BY ATOMIC-ABSORPTION SPECTROMETRY [J].

BURGUERA, M ;

BURGUERA, JL ;

ALARCON, OM .

ANALYTICA CHIMICA ACTA, 1986, 179 :351-357

[6] ATOMIC-ABSORPTION SPECTROMETRIC ANALYSIS OF SOLIDS WITH ONLINE MICROWAVE-ASSISTED DIGESTION [J].

CARBONELL, V ;

MORALESRUBIO, A ;

SALVADOR, A ;

DELAGUARDIA, M ;

BURGUERA, JL ;

BURGUERA, M .

JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY, 1992, 7 (07) :1085-1089

[7] ONLINE MICROWAVE-OVEN DIGESTION FLAME ATOMIC-ABSORPTION ANALYSIS OF SOLID SAMPLES [J].

CARBONELL, V ;

DELAGUARDIA, M ;

SALVADOR, A ;

BURGUERA, JL ;

BURGUERA, M .

ANALYTICA CHIMICA ACTA, 1990, 238 (02) :417-421

[8] ONLINE MICROWAVE-ASSISTED DIGESTION OF SOLID SAMPLES FOR THEIR FLAME ATOMIC SPECTROMETRIC ANALYSIS [J].

DELAGUARDIA, M ;

CARBONELL, V ;

MORALESRUBIO, A ;

SALVADOR, A .

TALANTA, 1993, 40 (11) :1609-1617

[9] COMPARISON OF DIFFERENT MICROWAVE-BASED DIGESTION TECHNIQUES IN VIEW OF THEIR APPLICATION TO FAT-RICH FOODS [J].

DUNEMANN, L ;

MEINERLING, M .

FRESENIUS JOURNAL OF ANALYTICAL CHEMISTRY, 1992, 342 (09) :714-718

[10] ANALYSIS OF BIOLOGICAL REFERENCE MATERIALS, PREPARED BY MICROWAVE DISSOLUTION, USING INDUCTIVELY COUPLED PLASMA MASS-SPECTROMETRY [J].

FRIEL, JK ;

SKINNER, CS ;

JACKSON, SE ;

LONGERICH, HP .

ANALYST, 1990, 115 (03) :269-273

← 1 2 3 4 5 →