O`zbekiston respublikasi sog`liqni saqlash vazirligi toshkent farmasevtika instituti
Детектор — устройство для регистрации концентрации компонентов смеси на выходе из колонки. 47. Хроматограф
Download 3,09 Mb. Pdf ko'rish
|
- Bu sahifa navigatsiya:
- 48. Значение R f
- Фотометрический анализ
- Toxicity
- Toxicant
- Toximeter
- Maximum Permissible Concentration (MPC)
- Approximate Safety Level of Exposure (TSEL)
- Drug addiction
- Hashishism
- Ekstrakt
Детектор
— устройство для регистрации концентрации компонентов смеси на выходе из колонки. 47. Хроматограф — прибор для проведения хроматографии 48. Значение R f -величина подъема пятна , не зависит от размера пластинки, времени разделения и (при достаточно малой массе пробы) от концентрации компонента в пробе и присутствия других компонентов, то есть это идентификационная характеристика. 49. Ультрафиолетовая спектроскопия - (УФ спектроскопия ), раздел оптич. спектроскопии , включающий получение, исследование и применение спектров испускания, поглощения и отражения в ультрафиолетовой области, т. е. в диапазоне длин волн 10-400 нм. 50. Фотометрический анализ (ФА), совокупность методов мол.- абсорбционного спектрального анализа , основанных на избират. поглощении электромагн. излучения в видимой, ИК и УФ областях молекулами определяемого компонента или его соед. с подходящим реагентом . 51. Оптическая плотность- (D), мера непрозрачности слоя вещества толщиной l для световых лучей; характеризует ослабление оптического излучения в слоях различных веществ. 364 1. Toxicological chemistry is the science which studies toxic and potent substances, their physical and chemical characteristics and prepares samples for analysis as well as methods of isolation and quantitative determination of these substances. 2. Toxicology is the science that deals with the study of the mechanism of chemicals‘ toxic actions, diagnostics and prevention of poisoning cases as well as treatment of poisoned patients. 3. Toxicology - (in Greek toxikon - poison, logos - study) - the science which studies the toxic characteristics of chemical substances and their impact on living organisms and ecosystems. 4. Toxicity- is the ability of chemicals substances to affect biological objects by causing damages 5. Toxic substances – in toxicology, any chemical substance which causes disease or death (such as intoxication, poisoning, etc.) in contact with the body called harmful substance (poison). 6. Toxicant - substances which cause not only the toxicity but also provoke other forms of toxic processes 7. Xenobiotics - is an alien chemicals to the body that have negative impact on the body despite its amount. 8. Poisoning - a pathological condition or dysfunction of biological systems occurring when the toxicant interacts with an organism (it is also called substance intoxication). 9. Toximeter - a set of methods and techniques to conduct quantitative assessment for the toxicity and danger of harmful substances. 10. Cumulation - Harmful substances may gradually accumulate in the body with repeated interactions. This phenomenon is called cumulation or cumulation material occurring when proceeding substance in an organism exceeds the removing poison from it. 11. Maximum Permissible Concentration (MPC) - hygienic classification is based on quantitative assessment of danger of chemical compounds obtained on the basis of experimental data on the determination of their maximum permissible concentration. 12. Approximate Safety Level of Exposure (TSEL) - preliminary MPC value, obtained by using calculation methods 13. LD 50 - values of the statistical average lethal doses or concentrations which are chosen because these values corresponds to 50% death of the experimented objects 14. Drug addiction - The World Health Organization defined drug addiction as a state of episodic or chronic poisoning caused by repeated introduction of the drug. 15. Morphinism – is type of addiction triggered by the usage of opium, morphine, codeine and other alkaloids containing in milky juice of the poppy. 16. Cocainism - caused by cocaine, which belongs to the group of the oldest psychoactive agents. It leads to irresistible desire to repeat the drug consumption. 365 17. Hashishism – is the type of drug addiction caused by consumption of Indian or southern hemp (marijuana, hashish). 18. Extraction (lat extraho -. Recoverable) - method of extracting a substance from a solution or a dry mixture with a suitable solvent (extractant). To extract from a mixture of solvents are immiscible with this mixture. 19. Extractant - Solvent extraction involves the transfer of one (or more) of soluble substances contained in the feed solution, in another immiscible liquid (extractant). 20. Ekstrakt- extractant enriched with soluble substances called extract 21. Metabolism - The sum of the physical and chemical changes in living cells by which energy is provided for vital processes and growth in cell mass. Download 3,09 Mb. Do'stlaringiz bilan baham: |
Ma'lumotlar bazasi mualliflik huquqi bilan himoyalangan ©fayllar.org 2025
ma'muriyatiga murojaat qiling
ma'muriyatiga murojaat qiling