Near-infrared spectroscopy combined with principal components analysis and a back propagation neural network identified Huanglongbing-infected Gannan navel orange leaves with an overall accuracy of 98.75%, outperforming LDA, KNN, and SVM models.
|Articles|August 28, 2009
VWR, PerkinElmer Expand Chromatography, Spectroscopy Products Deal
PerkinElmer announced that it has signed a new distribution agreement with VWR International.
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PerkinElmer (Wlatham, Massachusetts) announced that it has signed a new distribution agreement with life science and analytical products distributor VWR International (West Chester, Pennsylvania), under which VWR will offer broader and more streamlined ordering options for PerkinElmer's chromatography and spectroscopy products.
The distribution deal includes PerkinElmer's inorganic, chromatography, and materials characterization consumables, as well as FT-IR and UV/Vis spectroscopy solutions.
Andrea Beccari, vice president of consumables for PerkinElmer, said in a statement that the agreement will offer more convenience and options for its customers, who currently buy PerkinElmer's products through its own sales and service channels.
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