Photometry-Compendium | Laboratory Journal – Business Web for Users in Science and Industry

Nov. 27, 2017
Applications
Chlorine - Disinfectant in the Water Industry
Water is susceptible to impurities and contamination with pathogenic germs, and Chlorine is still the most important disinfectant for basin water and, in some countries and in certain events, for drinking water too. Which legal regulations ...
Sep. 27, 2017
Applications
Photometric color measurement
In the past "colorimetry" was based on human color vision, which is strongly influenced by individual perception as well as by exterior influences, such as ambient light and the brightness. Only with the use of photometers and ...
Jul. 11, 2017
Applications
Feasible Measured Values
Since the start of the photometry compendium, we have collected the most frequent requests about the subject "How do you achieve good measured results?" and compiled them into a list of favorites. Here, important subjects include ...
Jun. 22, 2017
Products
IDS goes wireless
Wireless transmitter modules for full freedom of movement when measuring pH,conductivity, dissolved oxygen and turbidity with IDS sensors! Measure comfortably in confined spaces, e.g. under laboratory hoods and laminar flow benches.
Nov. 30, 2015
Applications
Optical Reagent-Free Measurement of COD, Nitrate, Nitrite with photoLab 7600
A presentation of the optical reagent-free measurement procedure. This article is supplemental material for Photometry-Compendium Episode 6. More supplemental material you can find here.
Nov. 20, 2015
Applications
Spectral UV-VIS and UV Online Sensors
Technology and application of WTW spectral online sensors. This article is supplemental material for Photometry-Compendium Episode 6. More supplemental material you can find here.
Nov. 20, 2015
Applications
Data to the Lab and Back
For the data exchange between the WTW online measuring systems and photolab 6000/7000 photometers a USB stick is all you need. Do you have any questions regarding photometry? Please contact WTW!
Nov. 20, 2015
Applications
SAC is Not Equal to SAC
The spectral absorption coefficient is generally referred to as SAC (unit: 1/m). It is used to determine the sum of the dissolved organic water content substances by means of laboratory or process photometers. This article is suppl ...
Nov. 20, 2015
Applications
Online Measurement Brought into the Lab
OptRF - optical reagent-free measurement of COD, Nitrate and Nitrite. This article is supplemental material for Photometry-Compendium Episode 6. More supplemental material you can find here.
Nov. 20, 2015
Science
Reagent-Free Measuring Methods
The functional principle of spectral photometry is based on the absorption of electromagnetic radiation by substances. Besides the methods that use a chemical reaction to create a concentration dependant colour change, which can then ...

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