Bright Dyes Rhodamine WT Dye
Features
- Preferred, high strength formulations for medium to large scale visual and fluoremetric studies
- NSF Standard 60 Certification for use in or around potable water sources
- Also used to calibrate many YSI 6-Series and EXO optical sensors
- Expedited repair and warranty service
- Lifetime technical support
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Overview
Bright Dyes act as a coloring label on each drop of water. As that water or liquid travels, it can be identified at each point on its travel until it reaches extreme dilution. It may be detected visually, by ultraviolet light and by appropriate fluorometric equipment. The dyes selectively absorb light in the visible range of the spectrum. They are fluorescent because, upon absorbing light, they instantly emit light at a longer wavelength than the light absorbed. This emitted (fluorescent) light goes out in all directions. Most common fluorescent tracers are compounds that absorb green light and emit red fluorescent light.
Absorption Resistant
FWT red dye is resistant to absorption on most suspended matter in fresh and salt water. Compared to Bright Dyes FLT Yellow/Green products, FWT Red is significantly more resistant to degradation by sunlight and, when used in fluorometry, stands out much more clearly against background fluorescence.
In The News
Collecting Data at the Top of the World: How Scientists Retrieve Glacial Ice Cores
A helicopter touches down in the small town of Sicuani, Peru, at an elevation of 11,644 feet. Earlier that day, a boxcar brought fuel, drills, food, and other equipment for a glacial expedition. The year is 1979, and glaciologist Lonnie Thompson is preparing to lead a team to the Quelccaya ice cap in hopes of becoming the first scientists to drill an ice core sample from this glacier. 
 
 The only problem? The glacier is located at 19,000 feet in one of the most remote areas of the world. The helicopter takes off from the town, but the thin atmosphere at that elevation does not allow it to safely touch down on the ice– due to the aircraft’s weight, and it becomes unstable when the air is less dense.
Read MoreSpring 2024 Environmental Monitor Available Now
In the Spring 2024 edition of the Environmental Monitor, we showcase researchers from across the world and the importance of monitoring natural disasters and the various symptoms of climate emergencies. Tracking the impacts of wildfires in Canada to air pollution in New York , this latest edition showcases how the influence of climate change and natural disasters transfers across state and country lines. Researchers spent the year gathering data, predicting disasters, and monitoring as a means of managing and understanding natural disasters. 
 
Our writers sought out environmental professionals dedicated to protecting human health , minimizing the impacts of natural disasters and creating monitoring systems.
Read MoreCombining Academia and Lake Associations: Monitoring Lake Lillinonah
Lake Lillinonah may be Connecticut's second-largest lake, but it holds a great deal of meaning for locals and researchers in the surrounding towns. The lake is so significant to the surrounding community that it is one of many lakes in the United States with a dedicated lake association advocating for the resource. 
 
Jen Klug, Professor of Biology in the College of Arts and Sciences at Fairfield University , started her career at Fairfield as a natural progression in her background as a classical aquatic ecologist and found herself working closely with Lake Lillinonah's Friends of the Lake (FOTL) when they reached out to collaborate on an algae presentation for a public forum back in 2006.
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