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Titlebook: Organische Chemie; Ludwig Maier,O.A. Reutov,I. Eigen Conference proceedings 1967 Springer-Verlag Berlin Heidelberg 1967 Bindungen.Chemie.E

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發(fā)表于 2025-3-23 12:56:03 | 只看該作者
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發(fā)表于 2025-3-23 14:19:30 | 只看該作者
https://doi.org/10.1007/BFb0051715Bindungen; Chemie; Elektrophil; Reaktionen; organische Chemie
13#
發(fā)表于 2025-3-23 21:31:28 | 只看該作者
Gas Chromatography of Estriol in Pregnancy Urinethis determination up to 1963 in a mongraph. Most chemical methods are modifications of the method of Brown (2). This laboratory has used a chemical procedure involving alumina column chromatography followed by colorimetry (3). The present report describes how the method was modified for use with a gas chromatograph.
14#
發(fā)表于 2025-3-24 01:09:07 | 只看該作者
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發(fā)表于 2025-3-24 04:34:20 | 只看該作者
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發(fā)表于 2025-3-24 08:43:45 | 只看該作者
Kamran Ahrar MD, FSIR,Sanaz Javadi MDconsuming sector. Approximately, forty percent of the world’s food is produced by irrigation that highly depends on the resources of groundwater. Seventy-six groundwater samples were collected from the Quaternary aquifer, Eastern Nile Delta region, Egypt. Irrigation water quality parameters: pH, TDS
17#
發(fā)表于 2025-3-24 12:37:21 | 只看該作者
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發(fā)表于 2025-3-24 15:58:39 | 只看該作者
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發(fā)表于 2025-3-24 19:05:31 | 只看該作者
nd of borders, the use of temporary detention centers as part of the toughening of asylum policy, the criminalization of migration, and the marginalization resulting from discrimination against migrants all lead to conflict. This can be explained by the fact that the illegal status afforded migrants
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發(fā)表于 2025-3-25 01:04:41 | 只看該作者
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