Soft Drink Analysis
Soft Drink Analysis - Related Videos
07:28
Web-based Clinician Guide to Record Compatible Video of Standardized Drinking Task Kinematics for Computer Vision Analysis
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2025
Kinematic metrics of the drinking task have been recommended for use in upper limb stroke rehabilitation, but conventional approaches to kinematic studies are considered impractical. The current protocol describes a web-based guide to capture videos of the drinking task, which are compatible with computer vision to extract recommended kinematic metrics.
07:31
Murine Drinking Models in the Development of Pharmacotherapies for Alcoholism: Drinking in the Dark and Two-bottle Choice
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Cited by 21 •
2019
Alcohol Use Disorder (AUD) is a major national health problem and the development of more effective treatments is required to offset the needs of this patient population. To this end, the following protocol utilizes two simple rodent drinking models to assess the preclinical efficacy of lead anti-alcohol compounds.
09:10
Multimodal Analysis of Microplastics in Drinking Water using a Silicon Nanomembrane Analysis Pipeline
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2025
Here, we present a protocol showcasing an optically transparent and flat substrate for the streamlined capture and analysis of contaminating particles in drinking water. Presented here is the Silicon Nanomembrane Analysis Pipeline (SNAP): a flexible pipeline for the capture, quantification, and identification of particles in liquid media.
07:53
Soft Lithography
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2023
Many BioMEM devices, such as microfluidic channels, are fabricated using the soft lithography technique. Here, a microscale pattern is replicated by curing an elastomeric polymer over the 3D structure. These polymeric structures are then used to create a wide range of devices, ranging from microfluidic channels for biosensing applications to microscale bioreactors for the visualization of micro-colonies. This video introduces photolithography and demonstrates the technique in the laboratory.
08:45
Kinematic Analysis Using 3D Motion Capture of Drinking Task in People With and Without Upper-extremity Impairments
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Cited by 65 •
2018
This protocol describes an objective method to evaluate the movement performance and sensorimotor function of the upper extremity applied to individuals with stroke and healthy controls. A standardized test procedure, kinematic analysis and outcome variables for three-dimensional motion capture of drinking task are provided.
FAQs
Dissolved carbon dioxide can influence the beverage’s acid-base equilibrium and therefore affect the measured pH. Removing the gas produces a more stable sample for comparison and helps the titration reflect the beverage’s acidic components rather than changing carbonation during measurement. This preparation is especially important when relating acidity measurements to formulation or quality-control results.
pH measurement indicates the sample’s acidity under the conditions of measurement, whereas acid-base titration characterizes acidity through reaction with a measured amount of an opposing reagent. Using both approaches can distinguish a direct acidity reading from a concentration-oriented analytical result. Together, they help evaluate how acids and dissolved gases contribute to the beverage’s chemical behavior.
Each technique responds to a different property of the sample. Refractometry measures changes in refractive index, spectrophotometry measures light absorption, and chromatography separates compounds according to their chemical retention. These distinct signals support analysis of components such as sugars, colorants, caffeine, preservatives, and other dissolved substances, provided the selected method matches the component being examined.
A basic workflow begins by preparing the sample, including degassing when pH or acidity measurements could be affected by carbonation. The analyst can then measure pH, perform acid-base titration, and select refractometry, spectrophotometry, or chromatography for targeted components. Comparing the resulting measurements links observable chemical data with composition, formulation, and quality-control questions.
Targeted analysis is useful when a researcher needs information about a particular dissolved component rather than only overall acidity or carbonation. Refractometry can provide refractive-index data, spectrophotometry can examine light absorption, and chromatography can separate compounds through chemical retention. These measurements support characterization of formulation and can help investigate labeling or product consistency.
Soft drinks provide accessible samples for connecting analytical measurements with chemical equilibria. Students and researchers can examine how acids, dissolved gases, and organic compounds interact while comparing pH, titration, refractive-index, absorption, or chromatographic results. The same activities introduce concentration, analytical calibration, and interpretation of experimental data using a familiar beverage matrix.