Tea geographical origin explained by LIBS elemental profile combined to isotopic information
نویسندگان
چکیده
منابع مشابه
Stable Isotope Ratio and Elemental Profile Combined with Support Vector Machine for Provenance Discrimination of Oolong Tea (Wuyi-Rock Tea)
This paper focused on an effective method to discriminate the geographical origin of Wuyi-Rock tea by the stable isotope ratio (SIR) and metallic element profiling (MEP) combined with support vector machine (SVM) analysis. Wuyi-Rock tea (n = 99) collected from nine producing areas and non-Wuyi-Rock tea (n = 33) from eleven nonproducing areas were analysed for SIR and MEP by established methods....
متن کاملA New Model for Lunar Origin: Elemental and Isotopic Constraints
Introduction: The widely accepted model for the origin of the Earth-Moon system as the result of a Mars-sized giant impactor colliding with proto-Earth is inconsistent with a variety of new isotopic data. Generally, it is thought that the Earth and the Mars-sized Moon-forming impactor were isotopically different (for mass independent isotopic variations). Therefore, according to the “canonical”...
متن کاملElemental Abundance Measurement Using Micro-libs for Space Exploration
Introduction: As LIBS has been applied to a wider and more useful range of samples, it has been realized that signals generated with the laser plasma are highly dependent upon the matrix from which they have been ablated. In this case, analytical results dependence on physical properties of the sample. This at times leads to the paradoxical situation where precisely matrix matched calibration s...
متن کاملGeographical Estimates are Explained by Perceptual Simulation and Language Statistics
Several studies have demonstrated that language encodes geographical information. That is, the relative longitude and latitude of city locations can be extracted from language. Whether people actually rely on these linguistic features is less clear. Recent studies have suggested that language statistics plays a role in geographical estimates, but these studies rely on map drawings, a fundamenta...
متن کاملProfile of Elemental Composition of Oroxylum indicum L.(Vent.) Collected from Different Geographical Regions of India
Mineral content was quantified in Oroxylum indicum L.(Vent.) collected from two different geographic regions of India viz. Western Ghats (Maharashtra) and Northern Uttar Pradesh. The main aim of this study was determination of elemental composition in different parts of the plant Oroxylum indicum L.(Vent.), which is extensively used in Ayurvedic preparations. Specific parts (leaves, stem and ro...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Talanta
سال: 2020
ISSN: 0039-9140
DOI: 10.1016/j.talanta.2019.120674