Last decade's advances and modern aspects of near infrared spectroscopy are critically
examined and reviewed. Innovative instrumentation, highlighted by portable and imaging …

The performance of a portable near infrared spectrophotometer to determine biodiesel
content in diesel/biodiesel blends, as well as to quantify adulteration by vegetable oil, was …

Improper mixtures of: motor oil with crude oil; and derivatives mixed with other derivatives of
lesser commercial value were identified in Brazil by companies in the energy sector. This …

This work presents a comparative study of chemometric methods used to quantify
adulteration of extra virgin olive oil (EVOO) with soybean edible oil using fluorescence and …

Naphtha feedstock used for the steam-cracking process is typically blended from several
hydrocarbon source streams of composition varying in a broad range. This study aims at …

Viscosity and viscosity index are the key product properties in lubricating oil production
process. Rapid and even online analysis of viscosity and viscosity index through near …

Asphaltene-stabilized water-in-oil (W/O) emulsions can cause severe problems during oil
production and transportation. These emulsions are broken by adding a demulsifying agent …

Naphtha is an important distillation product of crude oil, and is used as a raw material for first-
generation products such as ethylene, propylene, gasoline, xylene (BTX), and others …

This paper describes a new method to obtain NIR spectra of liquid and gas samples by
diffuse reflectance, which is especially suitable for handheld spectrophotometers, since most …

For the efficient real-time monitoring of reaction chemistry in a complex mixture using online
spectroscopy, it is essential to develop a mathematical tool that can automatically resolve …