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  • 1
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Spectrochimica Acta Part B: Atomic Spectroscopy 46 (1991), S. 155-163 
    ISSN: 0584-8547
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    International Journal of Mass Spectrometry and Ion Processes 71 (1986), S. 183-197 
    ISSN: 0168-1176
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    European food research and technology 129 (1966), S. 273-277 
    ISSN: 1438-2385
    Source: Springer Online Journal Archives 1860-2000
    Topics: Process Engineering, Biotechnology, Nutrition Technology
    Notes: Zusammenfassung Es wird eine quantitative Bestimmungsmethode für Schwefelwasserstoff in Most, Jungwein und Wein beschrieben. Nach dieser Methode können die bei der Gärung entstehenden Schwefelwasserstoffgehalte sowie die beim „Schwefelwasserstoffböckser” bestimmt werden, In Traubenmost mit stürmischer Gärung wird maximal 1,5 mg Schwefelwasserstoff pro Liter, bei mäßiger Gärung etwa 0,4 mg Schwefelwasserstoff pro Liter festgestellt. Vergorene Jungweine, abgestochene Weine und ausgebaute gesunde Weine enthalten erwartungsgemäß keinen Schwefelwasserstoff. Weine mit „Schwefelwasserstoffböckser” enthalten Schwefelwasserstoff bis zu einigen mg pro Liter.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Fresenius' journal of analytical chemistry 357 (1997), S. 1013-1019 
    ISSN: 1432-1130
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract  Since the introduction of the catalytic cleaning of vehicle exhaust gases, platinum is discussed as environmentally relevant element. Results of such investigations are compared with “natural” platinum background concentrations, which were determined in selected environmental and biological samples. Wine serves as an example for the following the path of platinum, beginning with the uptake during the plant growth, continuing with the fermentation process of grape juice and resulting in the final product.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    International archives of occupational and environmental health 58 (1986), S. 27-34 
    ISSN: 1432-1246
    Keywords: Trace analysis ; Heavy metal load ; Lung tissue ; Occupational hazards
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary A routine method to determine the presence of partly environmentally relevant trace elements Al, Be, Cd, Co, Cr, Cu, Fe, Mn, Ni and Pb in lung tissue is described. The stages of process are preparation of samples conforming to the analysis material, decomposition, and subsequent trace determination by atomic absorption spectrometry. The results obtained from 125 samples show that chemical analysis is an effective aid in identifying and substantiating occupational risks.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    International archives of occupational and environmental health 59 (1987), S. 403-411 
    ISSN: 1432-1246
    Keywords: Total reflection X-ray fluorescence spectrometry (TXRF) ; Trace analysis ; Lung tissue ; Microtome cuts ; Occupational dust risks
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary A special X-ray fluorescence spectrometric method has been used for the analyses of thin layers of tissue samples. This method [called Total-Reflection X-ray Fluorescence (TXRF)] gives qualitative information about numerous trace elements of physiological and environmental interest. Microtome cuts of frozen lung tissue samples are placed on quartz glass targets and excited to X-ray fluorescence by the primary beam of a molybdenum tube. This method is of interest due to the very short time needed for sampling, sample preparation and simultaneous measurement. It could be a helpful procedure in pathological and occupational medicine if a decision has to be made as to whether or not a tissue sample is extremely dust loaden.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    Archives of toxicology 45 (1980), S. 81-92 
    ISSN: 1432-0738
    Keywords: Beryllium ; Blood analyses ; Immunology ; Human ; Animals
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Zur Frage der Dosis-Wirkungs-Relation der Berylliose wurde sowohl der Verlauf der Be-Konzentration in Blut und Urin, als auch das immunologische Verhalten der T-Lymphozyten bei einer Gruppe beruflich exponierter Menschen (〈 8 ng Be/m3, 4–6 h täglich) und einer nichtexponierten Kontrollgruppe geprüft. Mit Hilfe der optimierten flammenlosen Atomabsorptionsspektrometrie wurden als Normalwerte l,0 ± 0,4 ng Be/g (n = 10) in Blut und 0,9 ± 0,5 ng Be/g (n = 10) in Urin gefunden. Die exponierte Gruppe (n = 8) wies einen mittleren Anstieg um das 4fache auf. Die bevorzugte Anreicherung des Berylliums im Präalbumin- undγ-Globulinbereich wurde mit einer speziell entwickelten präparativen Isotachophoresesäule mit physiologischen Trenn-pH-Bedingungen nachgewiesen. Die Prüfung der spezifischen Stimulation der T-Lymphozyten ergab gegenüber der Kontrollgruppe eine signifikant erhöhte Transformationsrate. Die Untersuchung von Blut- und Urinproben Be exponierter Wistarratten und Meerschweinchen (2–40 mg Be/m3 als Be(NO3)2-Aerosol) ergab Be-Werte im Serum bis 36 ng Be/g, in Urin bis 300 ng Be/g. Die Menge der isotachophoretisch getrennten Fraktion derγ-Globuline von Meerschweinchen war nach der Exposition erhöht und nicht mit erhöhten Be-Gehalten in dieser Fraktion korrelierbar. Wie bei der in vitro-Zugabe von Be zu Vollblut befand sich das Be (10–100 ng/g Serum) zu 70% in der Präalbuminfraktion und nur zu etwa 1% imγ-Globulin. Die Lymphozytentransformationsrate war bei exponierten Tiergruppen erhöht, die zusätzlich durchgeführten Hautteste waren bei Ratten zu 70% und bei Meerschweinchen zu 50–70% positiv.
    Notes: Abstract The question of dose-effect relations of berylliosis was examined by measuring the Be-concentration in blood and urine, as well as the immunological behaviour of T-lymphocytes for a group of occupationally exposed men (〈 8 ng Be/m3,4–6 h daily) and a non-exposed control group. Normal values 1.0 ± 0.4 ng Be/g(n = 10) in blood and 0.9 ± 0.5 ng Be/g(n = 10)in urine were found by an optimized flameless atomic absorption spectrometry method. The corresponding values for the exposed group (n = 8) showed a mean increase of a factor of 4. The preferential enrichment of Be in the prealbumin and in theγ-globulin fractions was determined by a preparative isotachophoretic column with physiological pH conditions, especially developed for this application. The Be-specific stimulation of the T-lymphocytes of the exposed group was increased significantly. In blood and urine samples of exposed (2–40 mg Be/m3 as Be(NO3)2)Wistarrats and guinea pigs Be values up to 36 ng Be/g in serum and up to 300 ng Be/g in urine were determined. After Be exposure, guinea pig serum showed a significant increase in theγ-globulins after the isotachophoretical separation of the serum proteins, which could not be correlated with increased Be-levels in this fraction. 70% of the total Be (10–100 ng/g serum) were detected in the prealbumin, only about 1% in theγ-globulin fraction. The same results were found in serum samples with in vitro addition of He. The lymphocyte transformation rates for the exposed animals were increased. Skin tests were found to be positive in 70% for exposed rats and in 50–70% for guinea pigs.
    Type of Medium: Electronic Resource
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  • 8
    ISSN: 1432-1904
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Natural Sciences in General
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Springer
    Naturwissenschaften 68 (1981), S. 629-630 
    ISSN: 1432-1904
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Natural Sciences in General
    Type of Medium: Electronic Resource
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  • 10
    ISSN: 1432-1904
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Natural Sciences in General
    Type of Medium: Electronic Resource
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