منابع مشابه
Photosynthetic pigments of oceanic Chlorophyta belonging to prasinophytes clade VII.
The ecological importance and diversity of pico/nanoplanktonic algae remains poorly studied in marine waters, in part because many are tiny and without distinctive morphological features. Amongst green algae, Mamiellophyceae such as Micromonas or Bathycoccus are dominant in coastal waters while prasinophytes clade VII, yet not formerly described, appear to be major players in open oceanic water...
متن کاملThe Accumulation of Electrolytes Vii. Organic Electrolytes
I t has been suggested that potassium may enter Valonia chiefly as KOH which reacts with an organic acid HA in the sap to form KA, after which A is exchanged for chloride so that potassium accumulates as'KC1. This is not contradicted by any known facts and it is supported by a variety of evidence; inasmuch as this has recently been discussed I it need not be cited here. Other cations may act si...
متن کاملCrystal structure prediction of organic pigments: quinacridone as an example
The structures of the alpha, beta and gamma polymorphs of quinacridone (Pigment Violet 19) were predicted using Polymorph Predictor software in combination with X-ray powder diffraction patterns of limited quality. After generation and energy minimization of the possible structures, their powder patterns were compared with the experimental ones. On this basis, candidate structures for the polym...
متن کاملThermodynamic Explanation for the Cosmic Ubiquity of Organic Pigments
There is solid evidence for the occurrence of large amounts of organic material in the cosmos, particularly in the form of aromatic compounds. These molecules can be found on the surface of Earth and Mars, in the atmospheres of the larger planets and on many of their satellites, on asteroids, comets, meteorites, the atmospheres of red giant stars, interstellar nebulae, and in the spiral arms of...
متن کاملIdentification of organic pigments in tattoo inks and permanent
Nowadays, about 12% of the European and 20% of the US population are tattooed. Rising concerns regarding consumer safety, led to legal restrictions on tattoo inks and permanent make-up (PMU) inks. Restrictions also include bans on certain hazardous colourants. Both ink types use organic pigments for colour-giving, plus inorganic pigments for white and black and colour tones. Pigments are only s...
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ژورنال
عنوان ژورنال: Journal of the Japan Society of Colour Material
سال: 1967
ISSN: 0010-180X
DOI: 10.4011/shikizai1937.40.608