Webinars
20
Set
15:00
Titulação Termométrica do Número de Acidez

Com base no novo padrão de número de acidez (AN) termométrico ASTM D8045, esse método de teste abrange a determinação dos componentes ácidos no petróleo bruto e derivados de petróleo como ceras, betume, óleos base e asfalto. Além disso, a Análise do Número de Acidez que atualmente leva 15 minutos, com a nova técnica e o novo Thermotrode, o procedimento levará menos de dois minutos.

Neste webinar, explicaremos termos importantes e

  • Apresentaremos o Número de Acidez e a Titulação Termométrica
  • Mostraremos a titulação termométrica do AN, conforme a ASTM D8045
  • Apresentaremos o METTLER TOLEDO Thermotrode™
  • Mostraremos o feedback dos testes beta de diferentes amostras
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21
Set
10:00
Installation Care and Maintenance of Capillary GC Columns
This free webinar will discuss proper column installation and storage techniques. We will also address the common modes of column degradation and some of the misconceptions that people have about what column degradation is. Lastly, we will discuss ways that you can protect and maintain your columns performance and lifetime while minimizing instrument down time.
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21
Set
14:00
Automated Data Integrity – Problems and Solutions
This webinar shows how automatic data integrity for the data flow in a quality control lab can be achieved in a lean and efficient way. Improve data quality and sample throughput, use lab technicians time better.
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26
Set
11:00
The Agilent Intuvo GC – A New Way to Perform Gas Chromatographic Analyses for the Energy, Refining and Petrochemical Lab
The Agilent Intuvo GC – A New Way to Perform Gas Chromatographic Analyses for the Energy, Refining and Petrochemical La.
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27
Set
10:00
Single Particle Mode or Hyphenated ICP-MS? A Discussion of Nanoparticle Analysis in Complex Matrices

The presence of nanomaterials (with size range from approximately 1 nm to 100 nm) in food, consumer products, etc. is not new. For the last decade, inorganic nanoparticles have been used as food additives for enhancing color or flavor, for preservation and to facilitate manufacturing processes. Despite their wide use, nanomaterials have posed safety concerns regarding their possible uncontrolled release from the product and the effect this might have on humans and the environment. In view of these potential risks, regulatory and scientific assessment requires an understanding of their physicochemical characteristics within a commercial product. However, there is still a lack of standardized protocols for risk assessment and of validated methods for the characterization of relevant nanomaterials in complex samples. 

In this vein, this presentation will demonstrate the potential use of ICP-MS as a key tool for the characterization of manufactured nanomaterials.  ICP-MS has become the technique of choice for detection and characterization of nanoparticles in solution.  Compared with other techniques, ICP-MS is unique in its ability to provide information on nanoparticle size, size distribution, elemental composition, and number concentration in a single, rapid analysis.  ICP-MS can be used in two different modes for nanoparticle analysis, either in single particle mode for characterization of individual particles, or coupled to a separation technique such as field flow fractionation or capillary electrophoresis for bulk sample characterization.  Both techniques have benefits and limitations, but are complementary when used together.

This presentation will introduce the theory behind nanoparticle analysis both by single particle analysis and by field-flow fractionation-ICP-MS contrasting the benefits and limitations of both.  The following applications of AF4-ICP-MS will be used as examples.

 1) Use of the multi-elemental capability of ICPMS, hyphenated to AF4, to measure simultaneously TiO2 and SiO2 nanoparticles added to food. Such capability has also found potential use for the simultaneous monitoring of Al and Ti in sunscreen spiking experiments designed to study the effect of sample preparation and FFF separation conditions on the particle size distribution in the presence of the complex matrix.

2) Use of the ‘high isotopic selectivity with sufficient sensitivity’ features of the ICP-MS/MS technology for the accurate quantification of nanomaterials (e.g. Si02) in complex matrices through its hyphenation with asymmetric flow FFF (AF4) and isotope dilution calibration. Such developments are invaluable for the development of reference methods and matrix certified reference materials for nanomaterials characterization.

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28
Set
14:00
All about Thermal Analysis

Thermal Analysis comprises of a group of techniques that measure the physical or chemical properties of a sample as a function of temperature or time while it is heated, cooled or held at a constant temperature.

Material properties such as heat capacity, expansion coefficient or stiffness can easily be determined as well as melting, glass transition temperatures or thermal stability.

Thermal Analysis solves problems and provides insight across many industrial segments, as well as helping to support quality control and research and development.

In this Webinar, we will show how thermal analysis is used at different industries to analyze variety types of material.

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