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Goa, India

Goren A.C.,Chemistry Group
Records of Natural Products | Year: 2014

Stachys genus is one of the largest genera of the Labiatae (Lamiaceae) family and is widely distributed across Europe and East Asia, as well as in America. In this study the essential oil composition and consumption pattern of Stachys species as food are discussed. A survey of the literature found that the genus was consumed primarily as teas and that this was due to their essential oil and phenolics contents. Some species of the genus are also consumed in Europe and China as a carbohydrate source. © 2014 ACG Publications. All rights reserved.

Biswas S.,Bhabha Atomic Research Center | Prabhu R.K.,Chemistry Group | Hussain K.J.,Bhabha Atomic Research Center | Selvanayagam M.,Loyola College | Satpathy K.K.,Bhabha Atomic Research Center
Environmental Monitoring and Assessment | Year: 2012

Concentrations of Cu, Mn, Zn, Fe, Cr, and Pb were estimated using ICP-MS in nine commercially important and locally consumed fish species (Sarda orientalis, Scomberomorus commerson, Rastrelliger kanagurta, Sardinella longiceps, Paraplagusia bili-neata, Cynoglossus lida, Cynoglossus macrostomus, Lepturacanthus savala, and Siganus javus) collected from coastal waters of Kalpakkam, eastern part of India. Their concentration (μg g -1) in the examined fish species ranged as follows: Cu (0.8-6.5), Zn (14.3- 27.9), Mn (0.5-8.8), Fe (17.6-117.0), Cr (0.24-1.78), and Pb (0.18-2.29). Concentrations of most of the metals in the fish species studied were found to be safe for human consumption barring Mn. © Springer Science+Business Media B.V. 2011.

van der Veen A.M.H.,Chemistry Group
Accreditation and Quality Assurance | Year: 2015

ISO/REMCO, the Committee on Reference Materials of the International Organisation for Standardisation, has revised ISO Guide 33. In doing so, the document now provides a more comprehensive coverage of the mainstream applications of reference materials (RMs) and certified reference materials (CRMs). Unlike its predecessor, the new ISO Guide 33 now also covers calibration as one of the uses and aspects of preparing calibration RMs from pure materials, as done in many testing laboratories. These aspects were felt to be missing in guidance to laboratories. The Guide is now well aligned with the Guide to the Expression of Uncertainty in Measurement and its supplements. Many applications of RMs and CRMs in particular require the evaluation of measurement uncertainty or have an impact on it. Last but not least, the Guide also contains a specific clause dealing with the various aspects of selecting an RM for a particular purpose. © 2015 Springer-Verlag Berlin Heidelberg

Wang Y.,Hebei University of Technology | Yue Y.,Chemistry Group | Li H.,Hebei University of Technology | Zhao Q.,Hebei University of Technology | And 2 more authors.
Photochemical and Photobiological Sciences | Year: 2011

Novel core-shell composites have been developed by immobilization of non-luminescent europium(iii) complexes onto the surface of silica shells that are coated on the surface of luminescent dye-loaded zeolite L nano-crystals. The obtained core-shell composites were used for the ratiometric detection of dipicolinic acid (DPA) molecules. The dyes located in the channels of the zeolite L host are protected from any interaction with the environment of the particles and therefore provide a stable reference signal which can eliminate the need for instrument-specific calibration curves for DPA quantification in an analyte. © The Royal Society of Chemistry and Owner Societies 2011.

Prasath R.,Chemistry Group | Bhavana P.,Chemistry Group | Butcher R.J.,Howard University | Jasinski J.P.,Keene State College
Acta Crystallographica Section E: Structure Reports Online | Year: 2011

The crystal structure of the title compound, C 25H 18ClNO, shows that the molecules are isolated and not involved in intermolecular C - H⋯O or C - H⋯Cl interactions. However, the phenyl and quinoline rings are involved in π-π interactions [centroid-centroid distance = 3.8829 (9) Å].

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