Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Methods for Studying Drug Absorption: In situ01:09

Methods for Studying Drug Absorption: In situ

In situ experiments, such as the Doluisio method and Single-Pass Perfusion technique, provide critical insights into drug uptake by simulating in vivo conditions for drug absorption.
The Doluisio method involves perfusing a prepared segment of a rat's small intestine with a solution of radiolabeled drug and a non-absorbable marker. This helps to differentiate between absorbed and non-absorbed drug concentrations. The intestinal segment is connected at both ends using tubing and syringes,...
Methods for Studying Drug Absorption: In vitro01:16

Methods for Studying Drug Absorption: In vitro

In vitro experiments are crucial for understanding the transport and absorption of drugs through biological materials. These studies employ varied methods such as the diffusion cell method, the everted sac technique, and the everted ring technique.
The diffusion cell method uses a two-compartment cell, including a donor compartment with the drug solution, which simulates the environment where the drug is applied, and a receptor compartment with a buffer solution, which simulates the environment...
Imaging Studies III: Gastrointestinal Motility Studies and Virtual Colonoscopy01:26

Imaging Studies III: Gastrointestinal Motility Studies and Virtual Colonoscopy

This lesson explores three gastrointestinal imaging techniques: radionuclide testing, colonic transit studies, and virtual colonoscopy.
Radionuclide Testing
Radionuclide testing is a sophisticated medical technique for assessing gastrointestinal motility. It focuses on gastric emptying and colonic transit time. Radioactive markers track the movement of food through the digestive system, providing insights into gastrointestinal disorders.
In gastric emptying studies, a meal's liquid and solid...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Protein glutaminase-mediated deamidation improves the hydration properties of spray-dried micellar casein powders by coupling hierarchical porosity with surface charge and hydrophobicity modulation.

Food chemistry·2026
Same author

Controlled Trypsin Hydrolysis of Bovine Casein for Preferential α<sub>S1</sub>-Casein Reduction: Fraction-Specific Kinetics, α<sub>S1</sub>-Casein-Related Antigenicity and Candidate Bioactive Peptides.

Journal of agricultural and food chemistry·2026
Same author

[Spatiotemporal Patterns and Driving Mechanisms of Reclaimed Water Utilization in China].

Huan jing ke xue= Huanjing kexue·2026
Same author

Perineural invasion in digestive tract tumors: Immune system interactions and therapeutic strategies.

World journal of clinical oncology·2026
Same author

Advances in the preparation, characterization and biological activities of food-borne selenium-enriched peptides.

Food & function·2026
Same author

Can the submandibular gland be preserved during neck dissection in patients with oral squamous cell carcinoma？A systematic review and meta-analysis.

Oral oncology·2026
Same journal

The Laser Rangefinder System in Quadrature Modem and Ambiguity Resolution.

Guang pu xue yu guang pu fen xi = Guang pu·2018
Same journal

Improving the Accuracy of Camera-Based Heart Rate Measurement.

Guang pu xue yu guang pu fen xi = Guang pu·2018
Same journal

Determination of Pb, Cr, Cd, and As in Aluminum-Plastic Packaging Materials via Inductively Coupled Plasma-Mass Spectrometry with Microwave Digestion.

Guang pu xue yu guang pu fen xi = Guang pu·2018
Same journal

Study on Molecular Recognition of Cucurbit[6]uril with Oxytetracycline Molecules by Spectroscopic Methods.

Guang pu xue yu guang pu fen xi = Guang pu·2018
Same journal

Preparation and Properties of Novel Polymer Blue Fluorescent Materials.

Guang pu xue yu guang pu fen xi = Guang pu·2018
Same journal

Effect of the Nitrogen Incorporation on the Microstructure and Photoelectric Properties of N Type Nanocrystalline Silicon Thin Films.

Guang pu xue yu guang pu fen xi = Guang pu·2018
See all related articles

Related Experiment Video

Updated: Jun 23, 2026

A Strain Gauge Monitor (SGM) for Continuous Valve Gape Measurements in Bivalve Molluscs in Response to Laboratory Induced Diel-cycling Hypoxia and pH
07:59

A Strain Gauge Monitor (SGM) for Continuous Valve Gape Measurements in Bivalve Molluscs in Response to Laboratory Induced Diel-cycling Hypoxia and pH

Published on: August 1, 2018

[Ring effect and correction studies while retrieving trace gas concentration with passive DOAS].

Ying-Hua Zhang1, Pin-Hua Xie, Fu-Qi Si

  • 1Key Laboratory of Environmental Optical & Technology, Anhui Institute of Optics & Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China. yinghuazhang2001@163.com

Guang Pu Xue Yu Guang Pu Fen Xi = Guang Pu
|May 19, 2009
PubMed
Summary
This summary is machine-generated.

Passive DOAS (Differential Optical Absorption Spectroscopy) measures trace gases using scattered sunlight. This study modifies the method to correct for the Ring effect, improving measurement precision for gases like NO2.

More Related Videos

Retinal Vascular Reactivity as Assessed by Optical Coherence Tomography Angiography
07:23

Retinal Vascular Reactivity as Assessed by Optical Coherence Tomography Angiography

Published on: March 26, 2020

Assessment of Respiratory Function in Conscious Mice by Double-chamber Plethysmography
08:58

Assessment of Respiratory Function in Conscious Mice by Double-chamber Plethysmography

Published on: July 10, 2018

Related Experiment Videos

Last Updated: Jun 23, 2026

A Strain Gauge Monitor (SGM) for Continuous Valve Gape Measurements in Bivalve Molluscs in Response to Laboratory Induced Diel-cycling Hypoxia and pH
07:59

A Strain Gauge Monitor (SGM) for Continuous Valve Gape Measurements in Bivalve Molluscs in Response to Laboratory Induced Diel-cycling Hypoxia and pH

Published on: August 1, 2018

Retinal Vascular Reactivity as Assessed by Optical Coherence Tomography Angiography
07:23

Retinal Vascular Reactivity as Assessed by Optical Coherence Tomography Angiography

Published on: March 26, 2020

Assessment of Respiratory Function in Conscious Mice by Double-chamber Plethysmography
08:58

Assessment of Respiratory Function in Conscious Mice by Double-chamber Plethysmography

Published on: July 10, 2018

Area of Science:

  • Atmospheric chemistry and spectroscopy
  • Remote sensing techniques
  • Environmental monitoring

Context:

  • Passive DOAS is a widely used technique for measuring atmospheric trace gases.
  • The accuracy of passive DOAS is significantly impacted by the Ring effect, caused by solar Fraunhofer lines.
  • This effect is particularly problematic for precise measurements of low-concentration gases.

Purpose:

  • To investigate the influence of the Ring effect on trace gas retrieval using passive DOAS.
  • To analyze the relationship between the Ring effect and the solar zenith angle.
  • To develop and validate a modification to the passive DOAS method to mitigate the Ring effect.

Summary:

  • The study addresses the challenge of the Ring effect in passive DOAS measurements.
  • A novel modification is proposed, involving the selection of different Ring spectra based on the solar zenith angle.
  • The modified method was successfully applied to retrieve slant column densities (SCD) of NO2 over three stable days, demonstrating its feasibility.

Impact:

  • Improved accuracy and precision in trace gas concentration measurements using passive DOAS.
  • Enhanced reliability of atmospheric monitoring data, especially for pollutants at lower concentrations.
  • Potential for broader application of passive DOAS in environmental studies and air quality assessments.