共查询到20条相似文献，搜索用时 15 毫秒
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Gemot Frenking 《Nachrichten aus der Chemie》2001,49(12):1442-1443
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H.-J. Drewitz 《Fresenius' Journal of Analytical Chemistry》1962,189(4):379-380
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H. Zellner 《Fresenius' Journal of Analytical Chemistry》1954,141(5):397-398
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Hildegard Pluskal H. Specker W. Dewald und H. Freytag 《Fresenius' Journal of Analytical Chemistry》1957,156(2):144-146
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Klaus Roth 《Chemie in Unserer Zeit》2015,49(5):336-344
In 2013 the consumer group Stiftung Warentest conducted tests on nut containing chocolates and detected piperonal (heliotropine) in Ritter‐Sport's “Voll‐Nuss” (whole hazelnut). Stiftung Warentest concluded that piperonal could not be obtained naturally and that Ritter‐Sport misled consumers by falsely labelling it as “natural flavor.” Ritter said the allegations were “baseless” and went to court. During the court case, Ritter's flavor supplier Symrise AG guaranteed that the “natural” piperonal was manufactured “naturally” according to the European flavor regulations. Ritter‐Sport had “won” the “German chocolate battle.” Although the full manufacturing process has not been revealed during the court case, there are many hints in the scientific and patent literature that piperonal can be indeed produced naturally in accordance with the European flavor regulations. 相似文献
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Frank Vogt 《Journal of Chemometrics》2014,28(11):785-788
Assessing current trends in chemometric publications reveals that most projects utilize known methodologies and fall into the category “application.” There seems to be worrying little of true innovation unless one counts “fashions” assimilated from other fields. The field may have reached a crossroad: One path leads to chemometrics becoming a fully mature but stagnant tool for analytical chemists; the other path, that is, maintaining chemometrics as an active and widely recognized research field, requires opening new research areas for chemometricians. It is argued that hard modeling as opposed to the ubiquitous soft modeling may become such a new direction. Hard modeling would focus on investigating chemical mechanisms that give raise to measured data as opposed to empirically analyzing data.Furthermore, chemometricians in academia are responsible for preparing the next generation of chemometricians. Despite the need for chemometricians in the workforce, the number of young chemometricians is low and will remain low unless changes in chemistry curricula happen. This remains a challenge because there are fundamental issues that need to be overcome. Copyright © 2014 John Wiley & Sons, Ltd. 相似文献
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F. Rosendahl 《Fresenius' Journal of Analytical Chemistry》1958,161(3):209-210
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