Related Experiment Video
Updated: Jan 25, 2026

Chemiluminescence-based Assays for Detection of Nitric Oxide and its Derivatives from Autoxidation and Nitrosated Compounds
Published on: February 16, 2022
A compact low-noise photodiode detection system for chemiluminescence nitric oxide analyzer
Hang Li1, Wenqing Liu1, Ruifeng Kan1
1Key Laboratory of Environmental Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China.
Abstract:
A compact, low noise, and high gain photon detector with the size of 50 mm × 50 mm × 48 mm has been developed for a nitric oxide (NO) chemiluminescence analyzer based on a temperature-stabilized photodiode (PD). A deviation of 0.01 °C was realized based on the design of a highly precise temperature control system to avoid signal fluctuation and baseline drift caused by environmental temperature fluctuation. At an optimized temperature of 23 °C, the noise level of 0.088 mV of the PD detector with a gain of 1011 V/A was obtained. The limit of quantitative detection for NO achieved was 25 ppb (S/N = 10), and the coefficient of determination R2 was 0.999 in the range of 0.1-20 ppm.
More Related Videos
Related Concept Videos
Nitric Oxide Signaling Pathway
Compact Bone
Compact bone, also called cortical bone, is the denser, stronger of the two types of bone tissue. It is found under the periosteum and in the diaphyses of long bones, where it provides support and protection. The microscopic structural unit of compact bone is called an osteon, or haversian system. Each osteon is composed of concentric rings of calcified...
Compacting Factor test
The procedure begins by placing concrete into the upper hopper without any compaction. Once filled, the bottom door of this hopper is opened,...
Oxidation Numbers
Pyruvate Oxidation
First, the enzyme pyruvate dehydrogenase removes the carboxyl group from pyruvate and releases it as carbon dioxide. The stripped molecule is then oxidized and releases electrons, which are then picked up by NAD+...
Oxidation-Reduction Reactions

