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Immediate detection of Co2+ by a phthalazine-based colorimetric chemosensor / J. S. Heo in COLORATION TECHNOLOGY, Vol. 138, N° 2 (04/2022)
[article]
Titre : Immediate detection of Co2+ by a phthalazine-based colorimetric chemosensor Type de document : texte imprimé Auteurs : J. S. Heo, Auteur ; Cheal Kim, Auteur Année de publication : 2022 Article en page(s) : p. 168-175 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Capteurs chimiques
Colorimétrie
Composés organiques -- Synthèse
Dioxyde de carbone
PhtalazineLa phtalazine, aussi appelée benzo-orthodiazine ou benzopyridazine, est un composé organique hétérocyclique de formule brute C8H6N2. C'est avec notamment la quinoxaline, la cinnoline et la quinazoline, un diazanaphtalène, c'est-à-dire un composé bicyclique de squelette identique au naphtalène (deux benzènes accolés), mais dans lequel deux atomes de carbone sont remplacés par deux atomes d'azote. Dans le cas de la phtalazine, ce sont les atomes 2 et 3 qui ont été remplacés par des atomes d'azote, ce qui fait que sa structure est celle d'un cycle de pyridazine fusionné avec un cycle de benzène. (Wikipedia)Index. décimale : 535.6 Couleur Résumé : We designed a colorimetric chemosensor based on phthalazine ((E)-9-((2-(phthalazin-1-yl)hydrazono)methyl)-2,3,6,7-tetrahydro-1H,5H-pyrido[3,2,1-ij]quinoline-8-ol), denoted HPJ, for detecting Co2+. In the presence of Co2+, HPJ undergoes a colour variation from yellow to dark pink. Analysis of a Job plot and electrospray ionisation-mass spectra enabled the binding mode of HPJ to Co2+ to be determined as a 1:1 ratio. The detection limit of Co2+ with HPJ was 1.74 μM. In addition, the feasibility of using HPJ in the form of a test strip was confirmed. The sensing process of Co2+ by HPJ was monitored by using a Job plot, proton nuclear magnetic resonance titration, electrospray ionisation-mass spectrometry and ultraviolet-visible titration. Note de contenu : - EXPERIMENTAL : Materials and equipment - Synthesis of HPJ - UV-vis titrations - Job plot - 1H NMR titration - Inhibition experiments - Test strip
- RESULTS AND DISCUSSION : Spectroscopic test of the reaction of HPJ with Co2+DOI : https://doi.org/10.1111/cote.12580 En ligne : https://onlinelibrary.wiley.com/doi/epdf/10.1111/cote.12580 Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=37847
in COLORATION TECHNOLOGY > Vol. 138, N° 2 (04/2022) . - p. 168-175[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 23518 - Périodique Bibliothèque principale Documentaires Disponible
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Titre : Is CIELAB one space or many ? Type de document : texte imprimé Auteurs : Michael H. Brill, Auteur Année de publication : 2021 Article en page(s) : p. 83-85 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 535.6 Couleur Résumé : Models in colour engineering can have implicit customary usage, outside of whose parameters one is not supposed to venture. CIELAB is one such model : although able to accommodate a prediction of asymmetric matches, CIELAB is used in practice to compare colours only for a given illuminant/observer condition. Should we therefore deem CIELAB to be an infinity of spaces, one for each illuminant/observer combination ? This question has its roots in an oddity of CIELAB’s chromatic-adaptation model. A chromatic-adaptation oddity also entered CIE models that emerged after CIELAB, and leads to a similarly perplexing question. Note de contenu : - CIELAB : Customary use
- CIELAB : Non-customary usesDOI : 10.1111/cote.12486 En ligne : https://onlinelibrary.wiley.com/doi/epdf/10.1111/cote.12486 Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=35594
in COLORATION TECHNOLOGY > Vol. 137, N° 1 (02/2021) . - p. 83-85[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 22843 - Périodique Bibliothèque principale Documentaires Disponible Is it really possible to compensate for colour blindness with a filter ? / Eva M. Valero in COLORATION TECHNOLOGY, Vol. 137, N° 1 (02/2021)
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Titre : Is it really possible to compensate for colour blindness with a filter ? Type de document : texte imprimé Auteurs : Eva M. Valero, Auteur ; Rafael Huertas, Auteur ; Miguel Ángel Martínez-Domingo, Auteur ; Luis Gómez-Robledo, Auteur ; Javier Hernández-Andrés, Auteur ; Juan Luis Nieves, Auteur ; Javier Romero, Auteur Année de publication : 2021 Article en page(s) : p. 64-67 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 535.6 Couleur Résumé : In the last 2 decades, there has been a resurgence of the idea that passive aids such as colour filters can be an effective solution to compensate colour vision deficiency (CVD) or improve colour vision for subjects with CVD. We examine briefly the scientific evidence that has to date been gathered to study the reliability of these aids. In the light of our experience working in this field, we reflect on several related issues : why this question has not been elucidated before, how a filter would have to be designed for a specific task, and the importance of developing a personalised colour space for subjects with CVD to gain some insight into the effect of aids. Note de contenu : - Why is it an open question
- A personalised colorimetry for subjects with CVD
- The ultimate filter solution ? What the perfect filter should doDOI : 10.1111/cote.12505 En ligne : https://onlinelibrary.wiley.com/doi/epdf/10.1111/cote.12505 Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=35590
in COLORATION TECHNOLOGY > Vol. 137, N° 1 (02/2021) . - p. 64-67[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 22843 - Périodique Bibliothèque principale Documentaires Disponible
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Titre : Let there be light ! Type de document : texte imprimé Année de publication : 2019 Article en page(s) : p. 18-19 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Eclairage
Lumière artificielle
Lumière du jour
Métamérisme
vision des couleursIndex. décimale : 535.6 Couleur Résumé : The author reports on how to master the challenge of bringing true daylight into the laboratory.
Uniform colour is directly associated with high quality and influences our purchasing decision. This is especially true for multi-component products consisting of different materials and/or being produced by different suppliers. The human eye is often the final judge for approving a new design. Therefore, the visual inspection conditions need to be standardised to guarantee repeatable visual results.
The most important colour match is under naturel daylight. The CIE defined several standard D illuminants with D65 being the most important one. The lames used in a light booth must simulate D65 as close as possible. Until now, fluorescent tubes were used to simulate D65. A new unique lighting setup is now able to achieve class A quality by simulating CIE D65 with a smart combination of filtered halogen lamps and LEDs.Note de contenu : - CIE metamerism index-MI
- Standard illuminant D65
- Best in class daylight with Byko-spectra pro
- Table 1 : Categorisation of MIvis and MIuv depending on colour difference formula
- Fig. 1 : Daylight simulation with fluorescent tube
- Fig. 2 : Daylight simulation with combination of filtered halogen lamps with and without LEDsEn ligne : https://drive.google.com/file/d/1alVLylxoXHyHUX6syiBh9g1W1glwcGDD/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=33123
in POLYMERS PAINT COLOUR JOURNAL - PPCJ > Vol. 209, N° 4655 (10/2019) . - p. 18-19[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 21239 - Périodique Bibliothèque principale Documentaires Disponible
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Titre : Liquid color measurement : A new approach for color testing Type de document : texte imprimé Auteurs : Ralph Jan Wörheide, Auteur Année de publication : 2020 Article en page(s) : p. 41-48 Langues : Américain (ame) Catégories : Colorimétrie
Essais (technologie)
liquides
Pigments
Revêtements:Peinture
Stabilité chimiqueIndex. décimale : 535.6 Couleur Résumé : When it comes to color testing, there are many precise instruments, color correction software packages, automated spray machines, etc., in the marketplace. Colorimetry is a science of great importance to the paint industry, especially in meeting the high-quality standards of customers. However, the high scientific level and the precision of the instruments cannot compensate for the challenges presented, because conventional color testing takes place at the very end of the paint production process and requires a great deal of time due to the drying process. In addition, it has become state-of-the-art to correct colors instead of producing them in the required quality in the first run. Note de contenu : - Liquid color measurement : an approach for color measurement for color measurement of liquid paint and pigment preparations
- Color metrics : Correlation between liquid and dry measurements - Repeatability and reproducibility - Color strength - Effect pigments and their preparation - Black and dark colors - Stability test
- Process
- Prospect
- Fig. 1 : Basic setups of LCM ; three angle and on angle
- Fig. 2 : Liquid/dry correlation on L*, a*, b* and dE*
- Fig. 3 : Results for dry measurements of expected and measured color strength
- Fig. 4 : Results for liquid measurements of expected and measured color strength
- Fig. 5 : Comparison of different aluminum slurry batches
- Fig. 6 : Spectral data with and without black booster
- Fig. 7 : Stability test on pigment paste samples
- Fig. 8 : Use of LCM in different steps of the supply chainEn ligne : https://drive.google.com/file/d/1IX3bkLO8tRI1f_TfMOAZdADp_Al2kdtK/view?usp=share [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=33604
in COATINGS TECH > Vol. 17, N° 2 (02/2020) . - p. 41-48[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 21580 - Périodique Bibliothèque principale Documentaires Disponible Machine colour constancy : a work in progress / Michela Lecca in COLORATION TECHNOLOGY, Vol. 137, N° 1 (02/2021)
PermalinkManaging colour coatings accurately and affordably / Le Vin Chin in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 202, N° 4577 (10/2012)
PermalinkA matter of precision / Peter W. Gabel in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 194, N° 4463 (04/2003)
PermalinkLa mesure de la couleur / Alain Trouvé / Saint-Denis La Plaine : Association Française de Normalisation (AFNOR) (1991)
PermalinkMesure des couleurs dans l'industrie textile / Anni Berger
PermalinkMetamerism and its management / Filippo Busolo in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 205, N° 4614 (11/2015)
PermalinkMondial couleur 85 / International Color Association / Paris : Centre Français de la Couleur (1985)
PermalinkMondial couleur 85 / International Color Association / Paris : Centre Français de la Couleur (1985)
PermalinkNano structured surfaces for non-fading color effects / Amol Mulaijkar in PAINTINDIA, Vol. LXVII, N° 4 (04/2017)
PermalinkNotions techniques de reproduction des couleurs / Paul Kowaliski / Editions Estienne (1964)
PermalinkPermalinkOn the issue of linearity in chromatic induction by a uniform background / Edoardo Provenzi in COLORATION TECHNOLOGY, Vol. 137, N° 1 (02/2021)
PermalinkL'origine des couleurs dans les premières photographies couleur d'Edmond Becquerel / Bertrand Lavédrine in L'ACTUALITE CHIMIQUE, N° 444-445 (10-11/2019)
PermalinkPhysique de la couleur / Robert Sève / Paris : Masson (1996)
PermalinkPourquoi la couleur bleue est-elle rare dans nos assiettes et nos verres ? / Bernard Valeur in L'ACTUALITE CHIMIQUE, N° 481 (02/2023)
PermalinkPsychology and perception of colour and shape relevance to the world of coloured coatings and plastics, to choice and to selection / James Thomas Guthrie in SURFACE COATINGS INTERNATIONAL, Vol. 92, 4 (07/2009)
PermalinkResearch directions in color movie restoration / Alice Plutino in COLORATION TECHNOLOGY, Vol. 137, N° 1 (02/2021)
PermalinkRevisiting the Optical Society of America Uniform Color Scales system : past, present and future challenges / Manuel Melgosa in COLORATION TECHNOLOGY, Vol. 137, N° 1 (02/2021)
PermalinkRevisiting the weighting function for lightness in the CIEDE2000 colour-difference formula / Manuel Melgosa in COLORATION TECHNOLOGY, Vol. 133, N° 4 (08/2017)
PermalinkA rhodamine B-based colorimetric chemosensor for sensitive and selective detection of Cu2+ : Test strip analysis and density functional theory / Jae Sung Heo in COLORATION TECHNOLOGY, Vol. 139, N° 1 (02/2023)
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