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6 Newest Publications about the topic photometers

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Study of the influence of substrate and spectrophotometer characteristics on the in vitro measurement of sunscreens efficiency

03-Jun-2018 | Author(s): C. Couteau, A. Philippe, M.-A. Vibet, E. Paparis, L. Coiffard, European Journal of Pharmaceutical Science, 2018

Publication date: 30 August 2018 Source:European Journal of Pharmaceutical Sciences, Volume 121 Author(s): C. Couteau, A. Philippe, M.-A. Vibet, E. Paparis, L. Coiffard All the methods used for the in vitro measurement of the SPF, the universal indicator of sunscreens efficiency, ...

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Physiological processes associated with salinity tolerance in an alfalfa half‐sib family

21-Jun-2017 | M. Rokebul Anower, M. D. Peel, I. W. Mott, Y. Wu, Journal of Agronomy and Crop Science, 2017

Abstract We previously reported an alfalfa half‐sib family, HS‐B, with improved salt tolerance, compared to parental plants, P‐B. In this study, we conducted additional experiments to address potential physiological mechanisms that may contribute to salt tolerance in HS‐B. Vegetatively ...

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Diffuse Reflectance Spectroscopy Versus Mexameter® MX18 Measurements of Melanin and Erythema in an African Population

08-Jun-2016 | Caradee Y Wright, Aletta E Karsten, Marcus Wilkes, Ann Singh, Johan du Plessis, Patricia N Albers, Petrus A Karsten, Photochemistry and Photobiology, 2016

Abstract Melanin provides protection against excess exposure to solar ultraviolet radiation (UVR) and related adverse health effects. Diffuse Reflectance Spectroscopy (DRS) can be used to calculate cutaneous melanin and erythema, but this is complex and has been mostly used for light‐to‐medium ...

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Antimicrobial effect of 4‐hydroxybenzoic acid ester with glycerol

25-May-2015 | M. Kosová, I. Hrádková, V. Mátlová, D. Kadlec, J. Šmidrkal, V. Filip, Journal of Clinical Pharmacy and Therapeutics, 2015

Summary What is known and objectives Parabens have been commonly used as preservatives in pharmaceutical and cosmetics industries for almost 50years. These compounds are thermostable, pH‐stable and inexpensive and have a wide antimicrobial effect. The antimicrobial activity of parabens in ...

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Ultraviolet spectroscopy as a tool in therapeutic protein development

24-Nov-2010 | Henryk Mach; C. Russell Middaugh, Journal of Pharmaceutical Sciences, 2010

Abstract Ubiquitous ultraviolet absorption spectroscopy, despite the availability of more sophisticated techniques, remains an indispensable tool that can give an initial insight into the concentration and aggregation state of protein samples. The high degree of reproducibility afforded by ...

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Chromaligner: a web server for chromatogram alignment

15-Sep-2010 | Wang, San-Yuan; Ho, Tsung-Jung; Kuo, Ching-Hua; Tseng, Yufeng J., Bioinformatics, 2010

Summary: Chromaligner is a tool for chromatogram alignment to align retention time for chromatographic methods coupled to spectrophotometers such as high performance liquid chromatography and capillary electrophoresis for metabolomics works. Chromaligner resolves peak shifts by a constrained ...

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