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Há 6 horas · A Novel Method for the Quality Control of Saffron through the Simultaneous Analysis of Authenticity and Adulteration Markers by Liquid Chromatography-(Quadrupole-Time of Flight)-Mass Spectrometry. Food Chem. 2017 , 228 , 403–410.
Há 6 horas · Advanced techniques such as time-of-flight secondary ion mass spectrometry (TOF-SIMS), with its molecular specificity and high sensitivity, offer promising solutions. Samples of pure saffron and saffron adulterated with safflower and turmeric at three inclusion levels (5%, 10%, and 20%) were analyzed without prior treatment.
Há 6 horas · Uses Recreational LSD is commonly used as a recreational drug. Spiritual LSD can catalyze intense spiritual experiences and is thus considered an entheogen. Some users have reported out of body experiences. In 1966, Timothy Leary established the League for Spiritual Discovery with LSD as its sacrament. Stanislav Grof has written that religious and mystical experiences observed during LSD ...
Há 6 horas · Recorded January 28, 1986. Other offices. 1968 [5] –1969: [6] Chair of the Republican Governors Association. Ronald Wilson Reagan ( / ˈreɪɡən / ⓘ RAY-gən; February 6, 1911 – June 5, 2004) was an American politician and actor who served as the 40th president of the United States from 1981 to 1989.
Há 1 dia · For example, chemistry studies properties, structures, and reactions of matter (chemistry's focus on the molecular and atomic scale distinguishes it from physics). Structures are formed because particles exert electrical forces on each other, properties include physical characteristics of given substances, and reactions are bound by laws of physics, like conservation of energy , mass , and ...
Há 1 dia · Thomas Jefferson. Thomas Jefferson (April 13, 1743 [b] – July 4, 1826) was an American statesman, diplomat, lawyer, architect, philosopher, and Founding Father who served as the third president of the United States from 1801 to 1809. [6] He was the primary author of the Declaration of Independence. Following the American Revolutionary War and ...
Há 6 horas · Africa. Africa is the world's second-largest and second-most populous continent after Asia. At about 30.3 million km 2 (11.7 million square miles) including adjacent islands, it covers 20% of Earth 's land area and 6% of its total surface area. [7] With 1.4 billion people [1] [2] as of 2021, it accounts for about 18% of the world's human ...
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