Results 61 to 70 of about 5,701,527 (195)

INFLUENCE OF ADDITIVES ON SPECTROSCOPIC CHARACTERISTICS OF THE CARMINIC ACID

open access: yesApplied Researches in Technics, Technologies and Education, 2018
Foods must have attractive color, flavor and texture to be acceptable to consumers. Carminic acid (C.I. (1956) 75470; C.I. Natural Red 4; EEC No. E120) is a natural red dye extracted from cochineal, the desiccated bodies of female Dactylopius coccus Costa insects.
Violeta Rakić   +3 more
openaire   +1 more source

Mineralogical and Spectroscopic Characteristics of Turquoise from Duancengshan, Qinghai Province

open access: yesYankuang ceshi
The Duancengshan turquoise mine in Qinghai is an ancient mining site discovered in the northwestern region. Situated in the central distribution zone of Chinese turquoise resources and adjacent to the Tang–Xizang Ancient Road, this mining area holds ...
Xueli WANG   +4 more
doaj   +1 more source

Spectroscopy: Developments in instrumentation and analysis

open access: yesGrasas y Aceites, 2002
This review presents the characteristics, advantages, limits and potential of three spectroscopic techniques: near-infrared spectroscopy (NIR), mid-infrared spectroscopy (MIR) and Raman spectroscopy. The theoretical aspects related with these techniques,
Vincent Baeten, Pierre Dardenne
doaj   +1 more source

Isotopic probe for spectroscopic studies of heme [PDF]

open access: yes, 2009
Cytochrome P450 enzymes (P450s) are heme containing monooxygenases with great potential in applications focused in biotechnological areas. An understanding of the precise chemical process behind this enzyme is essential in research in the areas of ...
Manjunath, Sandhya C.   +1 more
core  

Raman Spectroscopic Analysis of Geological and Biogeological Specimens of Relevance to the ExoMars Mission [PDF]

open access: yes, 2013
H.G.M.E., I.H., and R.I. acknowledge the support of the STFC Research Council in the UK ExoMars programme. J.J. and P.V. acknowledge the support of the Grant Agency of the Czech Republic (210/10/0467) and of the Ministry of Education of the Czech ...
Hutchinson, Ian B.   +5 more
core   +1 more source

Mineralogical Characterization Studies of Ancient Potteries of Tamilnadu, India by FT-IR Spectroscopic Technique

open access: yesE-Journal of Chemistry, 2010
We report the spectroscopic investigation of ancient potteries excavated in Tamilnadu. Qualitative analyses were carried out to determine the major and minor constituent minerals present in the samples from the band position or location of the peaks ...
R. Ravisankar   +4 more
doaj   +1 more source

New dimeric supramolecular structure of mixed (phthalocyaninato)(porphyrinato)-europium(III) sandwiches : preparation and spectroscopic characteristics

open access: yes, 2003
The mixed double-decker Eu\[Pc(15C5)4](TPP) (1) was obtained by base-catalysed tetramerisation of 4,5-dicyanobenzo-15-crown-5 using the half-sandwich complex Eu(TPP)(acac) (acac = acetylacetonate), generated in situ, as the template.
Jiang, Jianzhuang   +6 more
core   +1 more source

The spectroscopic detection of drugs of abuse in fingerprints after development with powders and recovery with adhesive lifters [PDF]

open access: yes, 2009
The application of powders to fingerprints has long been established as an effective and reliable method for developing latent fingerprints. Fingerprints developed in situ at a crime scene routinely undergo lifting with specialist tapes and are then ...
West, M.J., Went, Michael J.
core   +1 more source

Sorption-spectroscopic of Rhenium ion production of detection methods [PDF]

open access: yesE3S Web of Conferences
In this research article, the sorption-spectroscopic of Rhenium ion production detection methods is presented. Various sorbent types were ascertained by the vismutol-2 reagent’s immobilization levels and ideal operating conditions.
Mirzakhmedov Rustamjon   +6 more
doaj   +1 more source

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