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What method is used to determine dissolved oxygen in water?
The testing method standards in our country include: "Determination of dissolved oxygen in water - Iodometric method" (GB7489-1987), "Determination of dissolved oxygen in water - Electrochemical probe method" (HJ506-2009), and American ASTM standard (D888-05). The first two are national and industry standard methods in China, and the latter is a standard method recognized by the US Environmental Protection Agency.
Impact of Marine Biofouling on Water Quality Sensors and Solutions - Analysis of Dissolved Oxygen Fluorescence Sensor by Qingdao Luminsens Marine Technology Company
In the global field of marine ecological monitoring and water environment management, biofouling-induced sensor failure has become a recognized technical bottleneck. Qingdao LUMINSENS Marine Technology Co., Ltd. has successfully developed a dissolved oxygen (DO) fluorescence sensor with revolutionary antibacterial performance through industry-university-research integration, surpassing international counterparts in core technical indicators and providing full-cycle reliable monitoring solutions for marine ranching, wastewater treatment, ecological research, and other scenarios.
LUMINSENS Makes a Splendid Debut at 2025 Fuzhou International Fisheries Expo, Water Quality Monitoring Technologies Attract Industry Attention
From June 13 to 15, 2025, Qingdao LUMINSENS Marine Technology Co., Ltd. showcased its full range of water quality monitoring solutions at the 2025 Fuzhou International Fisheries Expo held at Fuzhou Strait International Convention and Exhibition Center. As a scientific and technological achievement transformation enterprise in the field of marine instrumentation, LUMINSENS took the theme of "Empowering Smart Aquaculture with Fluorescent Sensing Technology", presenting core products such as dissolved Oxygen Sensors, pH sensors, COD sensors, and system solutions like buoy water quality monitoring stations and portable multi-parameter analyzers, attracting extensive attention from industry clients, research institutions, and media.
What are the water quality testing items for tap water?
The Hygienic Standards for Drinking Water (GB 5749-2006) cover 106 water quality indicators, including 20 sensory and general physicochemical indicators, 21 inorganic toxicity indicators, 53 organic toxicity indicators, 4 disinfectant indicators, 6 microbial indicators, and 2 radioactive indicators.
What is the pH value in water? How to monitor?
In daily life, water from different locations and types has different pH values, namely acidity and alkalinity. So, what are the characteristics and functions of water with different pH values?
What are the water quality monitoring indicators for drinking water source areas?
Drinking water is an important foundation for the sustainable development of modern cities, and providing safe, reliable, and healthy drinking water for the people is the foundation for promoting socio-economic development. Online monitoring of drinking water sources is particularly important. How can we ensure the safety of water quality in water sources? How to achieve 24-hour real-time and uninterrupted online monitoring of water quality in drinking water sources?
What does dissolved oxygen mean
The molecular oxygen in air dissolved in water is called dissolved oxygen. The content of dissolved oxygen in water is closely related to the partial pressure of oxygen in air and the temperature of water. Under natural conditions, the oxygen content in the air does not change much, so the water temperature is the main factor, the lower the water temperature, the higher the dissolved oxygen content in the water. The molecular form of oxygen dissolved in water is called dissolved oxygen, and is often referred to as DO, expressed in milligrams of oxygen per liter of water. The amount of dissolved oxygen in water is an index to measure the self-purification capacity of water body.
Advanced Dissolved Oxygen (DO) Monitoring Solutions for Enhanced Water Quality Management
In the realm of water quality management, Dissolved Oxygen (DO) serves as a critical indicator of aquatic health and ecosystem sustainability.
Qingdao Luminsens Marine Technology Co., Ltd. Shines at the 27th Shandong International Water Expo
Jinan, China – April 1-3, 2025 – The 27th Shandong International Water Expo & Shandong Urban Water Affairs Exhibition (JINNOC WATER EXPO) concluded successfully at the Shandong International Convention and Exhibition Center.
Congratulations to Qingdao LuminSens Marine Technology Co., Ltd. for Awarding the "High-Tech Enterprise" Certificate!
Congratulations to Qingdao LuminSens Marine Technology Co., Ltd. for successfully passing the high-tech enterprise certification, which awarded the "High-Tech Enterprise" certificate jointly issued by Qingdao Municipal Bureau of Science and Technology, Qingdao Municipal Finance Bureau, and Qingdao Taxation Bureau of the State Administration of Taxation.