共查询到20条相似文献，搜索用时 15 毫秒
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Dr. E. Hegewald Prof. Dr. E. Schnepf 《Aquatic Sciences - Research Across Boundaries》1978,40(2):320-343
A short review of the history of the taxonomy of the genusScenedesmus s.l. is given and some new results, including a new subdivision of the genus, are represented.
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Frau Dr. Draga Janković 《Aquatic Sciences - Research Across Boundaries》1971,33(1):354-362
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Ocean Dynamics - Der Vortrag bezweckt, die Rolle der regionalen Meeresschutzkooperationen im Gefüge der internationalen Zusammenarbeit zu beschreiben; es soll nachgewiesen werden, dass die... 相似文献
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A discussion is presented on the conditions required and limitations of the guaranteeing of quality in water analysis as the basis for the necessary standardization of analytical methods. The following concepts are of particular importance: principle of analysis, method of analysis, technique of analysis, specification for analysis, measured value, analytical value, result of measurement, result of analysis, precision, repeatability, reproducibility, detection limit, determination limit, sensitivity and rate of retrieval. Prequisite for the ensuring of quality proper are the standard addition method and the ring analysis. In the water analysis the guaranteeing of quality is of particular importance due to the multifarious matrix as well as for the interpretation of the analytical results as a basis for important decisions in the national economy. 相似文献
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B. Hanisch 《Aquatic Sciences - Research Across Boundaries》1964,26(2):559-568
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