Problems and trends in extreme trace analysis for the elements

Tölg, G.

doi:10.1016/0003-2670(93)85206-y

Cited by 26 publications

(6 citation statements)

References 91 publications

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“…This means that the gills, which are the primary organs for ion and gas exchange, consisting of a thin epithelium with a large area in contact with water, are the main target organ for aluminum toxicity in these fish. There (Tölg 1993). Karlsson-Norrgren et al (1986a), however, determined the concentrations of aluminum in various organs (gills, kidney, liver, intestine, muscle, and bone) of brown trout in acidified farms.…”

Section: Resultsmentioning

confidence: 99%

Aluminum in lake water and organs of a fish Tribolodon hakonensis in strongly acidic lakes with a high aluminum concentration

Takatsu¹,

Ezoe²,

Eyama

et al. 2000

Limnology

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Aluminum in lake water and in the organs of the fish Tribolodon hakonensis was investigated in Lake Usoriko (pH 3.6), Lake Inawashiroko (pH 5.0), and the Tenryu River (pH 7.7). The concentration of total soluble aluminum in the water was 0.51 mg l Ϫ1 in Usoriko, 0.05 mg l Ϫ1 in Inawashiroko, and less than 0.01 mg l Ϫ1 in the Tenryu. The chemical forms of soluble aluminum in the acid water were characterized as Al 3ϩ , AlL 2ϩ , and AlL Ϲ1ϩ . More than 90% of soluble aluminum in the water of Usoriko was Al 3ϩ , whereas AlL 2ϩ was dominant in the water of Inawashiroko. The aluminum concentration in the organs of T. hakonensis in Usoriko was 42 µg g Ϫ1 wet weight in gills, 4.2 µg g Ϫ1 in muscle, 6.9 µg g Ϫ1 in bone, 12.7 µg g Ϫ1 in liver, 6.0 µg g Ϫ1 in kidney, and 6.0 µg g Ϫ1 in intestine, indicating accumulation of aluminum in the gills. The aluminum concentration in the organs of T. hakonensis living in Inawashiroko was approximately the same, in spite of the difference in water chemistry of the two acid lakes, especially for pH and aluminum. This suggests that aluminum accumulation might be controlled in the fish living in the acid lakes. In contrast, the aluminum concentration in the gills of T. hakonensis from the Tenryu was 2 µg g Ϫ1 .

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Section: Resultsmentioning

confidence: 99%

Aluminum in lake water and organs of a fish Tribolodon hakonensis in strongly acidic lakes with a high aluminum concentration

Takatsu¹,

Ezoe²,

Eyama

et al. 2000

Limnology

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“…There have appeared comprehensive overviews devoted to these issues [7][8][9][10] . They deal primarily with inorganic trace analysis.…”

Section: Main Sources Of Error In Trace Analysismentioning

confidence: 99%

Trace Analysis — Challenges and Problems

Namieśnik¹

2002

Critical Reviews in Analytical Chemistry

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“…The future aim is now to characterize also compact Garten components of sintered ceramic materials. This purpose concerns first the bulk analysis, but soon also the microdistributional analysis, 28,33,163,171,173,181 because the trace distribution strongly influences the micromechanics, as well as all properties that are important for the technological application of functional purpose ceramic materials. For such microdistnbutions, the advancement of probe methods is very important; the analysis of non-conductive matter is particularly important from the ceramics point-of-view.…”

Section: Wet-chemical Proceduresmentioning

confidence: 99%

Topical Problems in Elemental Analysis of Advanced Ceramic Materials

Garten

1994

J Chinese Chemical Soc

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Selected prominent problems in the analysis of advanced ceramic materials are surveyed. The importance of reliability of results is discussed 10 the Held of elemental trace-and microanalysis in view of its interaction with economy, power of detection, local resolution and speciation selectivity. Particular probJems in U1e analysis of major constituents, trace components and microlocal distributions are based on the striking properties of ceramics; they are exemplified. Analytical assistance must start from the beginning of the production processing, in the preparation of the powdered base materials. Determination of the stoichiometry requires high accuracy and differentiation of chemical species in bulk and surface analysis of ceramic base powders. Element trace determination by direct instrumental methods requires standard reference materials for calibration; these are currently inavailable in a sufficient variety. For optimum reliability and power of detection, element traces must be prepared in isolated form in a small excitation volume for analysis.A review on the state-of-the-art of wet-chemical combined procedures is presented. Decomposition position procedures are emphasized, due to their risk of contributing severe systematic error. Combustion in elementary fluorine is presented for decomposition of refractory materials. The performance or some direct procedures is discussed. Very efficient methods are available for element trace determinations in ceramic materials, offering high detection power. Several approaches for high-resolution local microanalysis in non-conductive ceramic materials are identified as the most promising development in the analysis or sintered compact ceramic products and devices.

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Problems and trends in extreme trace analysis for the elements

Cited by 26 publications

References 91 publications

Aluminum in lake water and organs of a fish Tribolodon hakonensis in strongly acidic lakes with a high aluminum concentration

Aluminum in lake water and organs of a fish Tribolodon hakonensis in strongly acidic lakes with a high aluminum concentration

Trace Analysis — Challenges and Problems

Topical Problems in Elemental Analysis of Advanced Ceramic Materials

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