A Wavefront Division Polarimeter for the Measurements of Solute Concentrations in Solutions

Calixto, Sergio; Martinez-Ponce, Geminiano; Garnica, Guillermo; Figueroa-Gerstenmaier, Susana

doi:10.3390/s17122844

Cited by 8 publications

(6 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It was observed that the performance of the BB-MZI is comparable to the SW-MZI without a requirement of a costly laser system as an input light source. The effect of concentration on the visibilities of fringes pattern by solutions of (a) fructose and (b) glucose [14].…”

Section: Mach-zehnder Interferometermentioning

confidence: 99%

See 2 more Smart Citations

A Review of Optical Interferometry Techniques for Quantitative Determination of Optically Active Materials in a Solution

Ullah¹,

Khan²,

Faisal³

2022

Optical Interferometry - A Multidisciplinary Technique in Science and Engineering

View full text Add to dashboard Cite

Human diet is primarily comprised of optically active ingredients like glucose, sucrose, fructose, amino acids, lactic acid, cholesterol etc. Quality control is one of the most important processes in food industries to test, measure and verify the product for quality control standards. Optical techniques are mostly adopted in these industries for standardization of purity and concentration of optically active ingredients in their products. Quantitative measurements of optically active materials (OAMs) in a solution by interferometry have attracted the intention in present days due to their wide working range, high sensitivity and lower limit of detection. OAMs cause rotation of the angle of polarization when a plane-polarized light passes through them. The angle of rotation is distinct for different materials at different concentrations. For interferometric quantitative determination, the OAMs are generically placed in an arm of the interferometer and their effect on the interference fringe patterns are monitored as a function of their concentrations. Furthermore, the refractive indices of OAMs varies with their concentrations which directly affect the resultant interference pattern. Owing to the vast range of interferometric arrangements and processing techniques, this review assesses the different approaches adopted in detection of concentration of OAMs in a solution by interferometry.

show abstract

Section: Mach-zehnder Interferometermentioning

confidence: 99%

“…Where, I 1 and I 2 are the irradiances of reference and sample beams respectively and ψ is the polarization angle of the sample beam of the interferometer [14].…”

mentioning

confidence: 99%

See 1 more Smart Citation

A Review of Optical Interferometry Techniques for Quantitative Determination of Optically Active Materials in a Solution

Ullah¹,

Khan²,

Faisal³

2022

Optical Interferometry - A Multidisciplinary Technique in Science and Engineering

View full text Add to dashboard Cite

show abstract

“…Although the methods are simple, the resolution is relatively limited. In addition, the change in the refractive index of solutions can also be estimated by analyzing the interference image pattern in a Mach-Zehnder interferometer [20]. Generally, low-cost glass or transparent plastic containers with round or square shapes are used to place the liquid as a disposable unit, and then different optical measurement principles are used to detect the variation in concentrations.…”

Section: Introductionmentioning

confidence: 99%

Low-Cost Polyethylene Terephthalate Fluidic Sensor for Ultrahigh Accuracy Measurement of Liquid Concentration Variation

Twu

Lin

2021

Sensors

View full text Add to dashboard Cite

A low-cost polyethylene terephthalate fluidic sensor (PET-FS) is demonstrated for the concentration variation measurement on fluidic solutions. The PET-FS consisted of a triangular fluidic container attached with a birefringent PET thin layer. The PET-FS was injected with the test liquid solution that was placed in a common path polarization interferometer by utilizing a heterodyne scheme. The measured phase variation of probe light was used to obtain the information regarding the concentration change in the fluidic liquids. The sensor was experimentally tested using different concentrations of sodium chloride solution showing a sensitivity of 3.52 ×104 deg./refractive index unit (RIU) and a detection resolution of 6.25 × 10−6 RIU. The estimated sensitivity and detection resolutions were 5.62 × 104 (deg./RIU) and 6.94 × 10−6 RIU, respectively, for the hydrochloric acid. The relationship between the measured phase and the concentration is linear with an R-squared value reaching above 0.995.

show abstract

“…Pharmacopoeias of different countries use the polarimetric method for identification and quantitative analysis of chiral active pharmaceutical ingredients (API) and excipients [1][2][3]. Polarimetry does not lose its relevance and is technically improved in pharmaceutical research [4,5], despite the long history of its existence [6] and the introduction of new optical methods [7,8]. Pharmacopoeia measurements of the optical activity of API are carried out in waters with different pH values depending on the nature of the substance.…”

Section: Introductionmentioning

confidence: 99%

Polarimetric Research of Pharmaceutical Substances in Aqueous Solutions With Different Water Isotopologues Ratio

et al. 2018

View full text Add to dashboard Cite

Objective: Methodology development for quality control of optically active pharmaceutical substances based on water isotopologues.Methods: Solutions of L-ascorbic acid, glucose, galactose and valine stereoisomers were prepared using deuterium depleted water (DDW-«light» water, D/H=4 ppm), natural deionized high-ohmic water (BD, D/H=140 ppm), heavy water (99.9% D2O). The optical rotation was observed using an automatic polarimeter Atago POL-1/2. The size distribution of giant heterogeneous clusters (GHC) of water was recorded by low angle laser light scattering (LALLS) method.Results: The infringement of Biot’s Law was found for solutions of ascorbic acid, expressed in the absence of a constant value of the specific optical rotation at a concentration of below 0.1%, depends on the D/H ratio. The inequality was established in absolute values of optical rotation for L-and D-isomers of valine in solutions with different ratios of hydrogen isotopologues. The mutarotation of glucose confirmed the first-order kinetics, and the activation energies were statistically distinguishable for BD and DDW. The mutarotation of the natural galactose D-isomer proceeded with a lower energy consumption compared to the L-isomer. In heavy water, the mutarotation of monosaccharides had different kinetic mechanisms. Polarimetric results correlated with the number and size of GHC, which confirmed the possibility of chiral solvent structures induction by optically active pharmaceutical substances.Conclusion: In the optically active pharmaceutical substances quality control there should be considered the contribution of induced chiral GHC of water to the optical rotation value that depends on the isotopic D/H ratio, the substance nature and the form of its existence at a given pH.

show abstract

A Wavefront Division Polarimeter for the Measurements of Solute Concentrations in Solutions

Cited by 8 publications

References 7 publications

A Review of Optical Interferometry Techniques for Quantitative Determination of Optically Active Materials in a Solution

A Review of Optical Interferometry Techniques for Quantitative Determination of Optically Active Materials in a Solution

Low-Cost Polyethylene Terephthalate Fluidic Sensor for Ultrahigh Accuracy Measurement of Liquid Concentration Variation

Polarimetric Research of Pharmaceutical Substances in Aqueous Solutions With Different Water Isotopologues Ratio

Contact Info

Product

Resources

About