低浓度高活性
English translation: high specific activity even at/when it is used at low(er) concentrations
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| 01:44 Feb 18, 2016 |
| Chinese to English translations [PRO] Science - Chemistry; Chem Sci/Eng | |||||||
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|  Selected response from: Erzsébet Czopyk Hungary Local time: 11:27 | ||||||
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| 4 +1 | high activity coefficient at low concentrations |
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| 5 | high specific activity even at/when it is used at low(er) concentrations |
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Answers
23 mins confidence: 
peer agreement (net): +1
peer agreement (net): +1high activity coefficient at low concentrations Explanation: See examples from Wikipedia: 1. "An activity coefficient is a factor used in thermodynamics to account for deviations from ideal behaviour in a mixture of chemical substances......Deviations from ideality are accommodated by modifying the concentration by an activity coefficient" 2. "Specific ion Interaction Theory (SIT theory) is a theory used to estimate single-ion activity coefficients in electrolyte solutions at relatively high concentrations" |
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24 mins confidence:
high specific activity even at/when it is used at low(er) concentrations Explanation: [PDF]Azeloyl-Glycine: a new active in skin disequilibrium www.iscd.it/.../AZELOYL-GLYCINE---A-NEW-ACTIVE-IN-SKIN-DIS.... by L Rigano - 2003 - Cited by 6 - Related articles Key words: Sebum contro/; Skin lighteners; Azelaic acid; ... However, its limits in topica! formulations are well known, even when it is used at lower ... exhibits very high water solubility, high specific activity at low concentration, low toxicity and ... Alernative to azelaic acid - Over-the-counter acne medications and ... www.acne.org › ... › Over-the-counter acne medications and products Sep 17, 2009 - Azeloyl Glycine is a new type azelaic acid derivative that is claimed to be superior ... The dermatological uses of Azelaic acid are related to its anti-sebhorreic, anti-mycotic and anti-acne properties. However, its limits in topical formulations are well known, even when it is used at lower concentrations than the pharmacological ones. Firstly, a high percentage amount is required to be effective. Secondly, being insoluble at high concentrations, it provides poor cosmetic properties to the formulations, which result to be thick and difficult to spread over the skin. Finally, its solubilisation by adequate chemical methods (e.g. neutralisation) brings to loss of Azelaic acid content during shelf life, as it decarboxylates. In order to overcome these problems a new molecule, Potassium Azeloyl di-Glycinate, has been produced. It exhibits very high water solubility, high specific activity at low concentration, low toxicity and adequate chemical stability and compatibility. Serial cosmetic efficacy essays have been carried out with informed volunteers. The preliminary results are very interesting. It proved very effective as skin whitening agent and sebum normalizer. In addition, other skin parameters like moisturization and some elastic properties show remarkable improvements. High activity even at low concentrations Study found that after the introduction of azelaic acid glycine... has a high water solubility, lhigh specific activity at low concentration, low toxicity and excellent chemical stability, making azelaic acid can be more widely used in the field of cosmetics industry. -------------------------------------------------- Note added at 25 mins (2016-02-18 02:10:39 GMT) -------------------------------------------------- I see you still fighting with your acne-related files. I would love to see the results if it is possible. I am very interested. -------------------------------------------------- Note added at 26 mins (2016-02-18 02:11:09 GMT) -------------------------------------------------- http://www.acne.org/messageboard/topic/248515-alernative-to-... -------------------------------------------------- Note added at 28 mins (2016-02-18 02:12:43 GMT) -------------------------------------------------- Garden of Wisdom - Delphi Forums Mobile m.delphiforums.com/gardenofwisdom/messages/3424/11 Whole combo as in mandelic acid + white daisy + lite N brite? ... even when used at lower concentrations than the pharmacological ones. ... It exhibits very high water solubility, amphyphily, high specific activity at low concentration, low toxicity and adequate ... Azeloyl Glycine is same as Azelaic acid right? -------------------------------------------------- Note added at 5 days (2016-02-23 04:29:55 GMT) Post-grading -------------------------------------------------- My pleasure :) 謝謝 |
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