AAP logoAAP logo
Browse

Water, Energy, And The Environment

  • Agri and food Scholar
    Agriculture is the science and art of cultivating plants and livestock.[1] Agriculture was the key development in the rise of sedentary human civilization, whereby farming of domesticated species created food surpluses that enabled people to live in cities. The history of agriculture began thousands of years ago. After gathering wild grains beginning at least 105,000 years ago, nascent farmers began to plant them around 11,500 years ago. Pigs, sheep and cattle were domesticated over 10,000 years ago. Plants were independently cultivated in at least 11 regions of the world. Industrial agriculture based on large-scale monoculture in the twentieth century came to dominate agricultural output, though about 2 billion people still depended on subsistence agriculture into the twenty-first.
    By: Ameliya
    Wednesday, May 12, 2021
    AGRI-FOOD SYSTEMS
    +4
    post image
  • venture capital :
    Agriculture is the science and art of cultivating plants and livestock.[1] Agriculture was the key development in the rise of sedentary human civilization, whereby farming of domesticated species created food surpluses that enabled people to live in cities. The history of agriculture began thousands of years ago. After gathering wild grains beginning at least 105,000 years ago, nascent farmers began to plant them around 11,500 years ago. Pigs, sheep and cattle were domesticated over 10,000 years ago. Plants were independently cultivated in at least 11 regions of the world. Industrial agriculture based on large-scale monoculture in the twentieth century came to dominate agricultural output, though about 2 billion people still depended on subsistence agriculture into the twenty-first.
    By: Ameliya
    Wednesday, May 12, 2021
    AGRI-FOOD SYSTEMS
    +4
    post image
  • Nature
    isotope labeling agents Agriculture is the science and art of cultivating plants and livestock.[1] Agriculture was the key development in the rise of sedentary human civilization, whereby farming of domesticated species created food surpluses that enabled people to live in cities. The history of agriculture began thousands of years ago. After gathering wild grains beginning at least 105,000 years ago, nascent farmers began to plant them around 11,500 years ago. Pigs, sheep and cattle were domesticated over 10,000 years ago. Plants were independently cultivated in at least 11 regions of the world. Industrial agriculture based on large-scale monoculture in the twentieth century came to dominate agricultural output, though about 2 billion people still depended on subsistence agriculture into the twenty-first.
    By: Ameliya
    Wednesday, May 12, 2021
    CULTURE AND SOCIETY
    +2
    poster image
  • Permanently positively charged stable isotope labeling
    Permanently positively charged stable isotope labeling   Permanently positively charged stable isotope labeling agents and its application in the accurate quantitation of alkylphenols migrated from plastics to edible oils Chong Ma, Shijuan Zhang *, Xia Wu, Jinmao You ** Shandong Province Key Laboratory of Life - Organic Analysis, key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine, Qufu Normal University, Qufu , PR China
    By: Ameliya
    Wednesday, May 12, 2021
    CULTURE AND SOCIETY
    +3
    poster image
  • venture capital :
    A new permanently positively charged stable isotope labeling (SIL) agent pair, 4-(((2,5-dioxopyrrolidin-1-yl)oxy)carbonyl)-N,N,N-trimethylbenzenaminium iodide(DPTBA) and its deuterated counterpart d3-DPTBA, 
    By: Ameliya
    Wednesday, May 12, 2021
    AGRI-FOOD SYSTEMS
    +6
    post image
  • venture capital :
    A new permanently positively charged stable isotope labeling (SIL) agent pair, 4-(((2,5-dioxopyrrolidin-1-yl)oxy)carbonyl)-N,N,N-trimethylbenzenaminium iodide(DPTBA) and its deuterated counterpart d3-DPTBA, 
    By: Ameliya
    Wednesday, May 12, 2021
    AGRI-FOOD SYSTEMS
    +5
    post image
  • Agri and food Scholar
    A new permanently positively charged stable isotope labeling (SIL) agent pair, 4-(((2,5-dioxopyrrolidin-1-yl)oxy)carbonyl)-N,N,N-trimethylbenzenaminium iodide(DPTBA) and its deuterated counterpart d3-DPTBA,   
    By: Ameliya
    Wednesday, May 12, 2021
    CULTURE AND SOCIETY
    +2
    poster image
  • venture capital
    A new permanently positively charged stable isotope labeling (SIL) agent pair, 4-(((2,5-dioxopyrrolidin-1-yl)oxy)carbonyl)-N,N,N-trimethylbenzenaminium iodide(DPTBA) and its deuterated counterpart d3-DPTBA, 
    By: Ameliya
    Wednesday, May 12, 2021
    CULTURE AND SOCIETY
    +3
    poster image
  • Nature
    A new permanently positively charged stable isotope labeling (SIL) agent pair, 4-(((2,5-dioxopyrrolidin-1-yl)oxy)carbonyl)-N,N,N-trimethylbenzenaminium iodide(DPTBA) and its deuterated counterpart d3-DPTBA, 
    By: Ameliya
    Wednesday, May 12, 2021
    HEALTH AND NUTRITION
    +2
    post image
  • venture capital :
    A new permanently positively charged stable isotope labeling (SIL) agent pair, 4-(((2,5-dioxopyrrolidin-1-yl)oxy)carbonyl)-N,N,N-trimethylbenzenaminium iodide(DPTBA) and its deuterated counterpart d3-DPTBA, 
    By: Ameliya
    Wednesday, May 12, 2021
    HEALTH AND NUTRITION
    +2
    poster image
  • chemistry grants
    Abstract A new permanently positively charged stable isotope labeling (SIL) agent pair, 4-(((2,5-dioxopyrrolidin-1-yl)oxy)carbonyl)-N,N,N-trimethylbenzenaminium iodide(DPTBA) and its deuterated counterpart d3-DPTBA, was designed and synthesized. The SIL agents were applied to the liquid chromatography–tandem mass spectrometry analysis of alkylphenols. Light labeled standards and heavy labeled samples were mixed and analyzed simultaneously. Matrix effect which mainly occurred during the ionization process was minimized because of the identical ionization processes between samples and standards. Meanwhile, derivatization made alkylphenols be positively charged, and thus the sensitivity was enhanced. The limits of detection were in the range of 1.5–1.8 ng/L, and the limits of quantitation were in the range of 4.8–6.1 ng/L. The developed method was applied to analyze alkylphenols migrated from plastics to edible oils. The recoveries for all analytes were in the range of 88.6–95.3%, while the matrix effects for all analytes were in the range of 96.2–99.6%.
    By: Ameliya
    Wednesday, May 12, 2021
    HEALTH AND NUTRITION
    +2
    poster image
  • Nature
    The onion, known as the bulb onion or common onion, is not only a key ingredient in many tasty and healthy vegetarian meals but also many traditional medicines. Nine new flavonoids [cepaflavas A, B (5, 6), cepadials A–D (7–9 and 14), and cepabiflas A–C (10–12)] and six known compounds (1–4, 13, 15) were obtained from the outer skins of Allium cepa L. Among them, compounds 5, 6, and 9 might be artificial products formed during extraction and isolation. New compounds were structurally elucidated using various spectroscopy/spectrometry techniques, including NMR and HRMS, and computational methods. T
    By: Ameliya
    Wednesday, May 12, 2021
    AGRI-FOOD SYSTEMS
    +6
    poster image
    • loading category
    loading