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Universidade Estadual Paulista (UNESP). Campus de Araraquara. Instituto de Química (IQ) (Institutional affiliation from the last research proposal) Birthplace: Brazil
José Anchieta Gomes Neto in research grants and scholarships supported by FAPESP.
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This project focuses on the development of spectroscopic methods for inorganic elemental analysis and explores two main research themes: sample preparation and analytical instrumentation. The first theme deals with the evaluation of the performance of the new commercial digester system with conductive heating in closed vessels for the preparation of animal feed samples (e.g. dogs, cats, f…
It is intended to critically evaluate new sample preparation strategies employing a Conductively Heating Digestion System (CHDS). This equipment will be studied for samples of environmental, energy and food interest. Considering the low relative sensitivity of laser-induced breakdown spectroscopy (LIBS), it is proposed to evaluate an electrical system to generate a spark in the plasma dur…
Elemental analyses by spectrometric techniques are commonly carried out employing direct introduction of liquid samples. Solid samples must then be converted into clear solutions. Conventional procedures based on wet and dry ashing are most commonly used for preparation of solid samples. Nevertheless, they are considered laborious, time consuming, susceptible to sample contamination and a…
Internal standardization in atomic spectrometric techniques became visible in analytical chemistry since 1929. Internal standardization studies have been published in the literature, more frequently in inductively coupled plasma optical emission spectrometry and mass spectrometry, but rarely in atomic absorption spectrometry. The thesis of this project involving internal standardization i…
(Only some records are available in English at this moment)
Lignocellulosic biomass plays an important role in the country's agricultural, energy and environmental sectors, energy and environmental sectors. As a source of renewable energy, it helps to reduce greenhouse gases - which contribute to global warming and climate change -, promote regional development and an energy transition to a circular, sustainable and low-carbon economy, which are p…
The use of lasers for analytical purposes is increasing as a function of the growing demand for sustainable procedures based on the principles of Green Chemistry. In this sense, Raman spectroscopy is one of the techniques has been standing out due to its interesting features for nondestructive direct analysis (no sample preparation is needed), high selectivity, and chemical and structural…
A new calibration method in analytical chemistry combining the standard addition and internal standardization methods is proposed in this Doctoral Thesis. The internal standard addition using gradient flow analysis is a novel method and benefits in the field of quantitative chemical analysis are: a) correct for matrix or transport effects, and fluctuations due to changes in sample size, i…
The development of a miniaturized convectively heated closed-vessel digestion system that can decompose a great number of botanical samples simultaneously at slightly increased pressure can be very useful in elemental analysis by atomic spectrometry. Preliminary studies revealed that when the digestion is performed in a closed vessel without an outer metal casing in a heating block, only …
(Only some records are available in English at this moment)
| 1 / 1 | Ongoing grants |
| 17 / 7 | Completed research grants |
| 1 / 1 | Ongoing scholarships in Brazil |
| 13 / 6 | Completed scholarships in Brazil |
| 32 / 15 | All research grants and scholarships |
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