Direct-determination is a fast and free of contamination method for analysis of substances in
water samples. However, direct-determination of SO 4 2− with high concentration in …

One of the main barriers stopping plasma activated water (PAW) in many practical
applications is its high energy cost. On the other hand, a careful review of published …

A spectrophotometer with an LED as the light source for uric acid detection is proposed in
this work. The mechanism of uric acid detection is based on energy absorbed by sodium …

The variation of spectra and the characteristics of electronic excitation are critical for
establishing a model for quantifying sulfate at high concentrations. The absorption …

Long optical path length and strong ozone absorption wavelength are generally applied for
high sensitivity ozone concentration measurement in ultraviolet absorption spectroscopy …

Underwater images are affected by light scattering and absorption in the water. It usually
faces challenges such as color distortion, loss of details, and low contrast. To address the …

The measurement of uric acid based on the optical absorption at visible light spectrum is
investigated and tested. Sensing in the visible region was conducted for determination of …

The manuscript is a review of basic essentials to ozone gas sensing with optical methods.
Optical methods are employed to monitor optical absorption, emission, reflectance and …

In ultraviolet absorption spectroscopy, sensitivity of ozone concentration measurement is low
when transmittance is too high or too low. This is because transmittance of light influences …

This chapter explores the impact of ozone concentration on its absorption cross section in
the visible spectrum. We used a computer program called Spectralcalc. com and a database …