Effective water quality monitoring is the key to environmental protection of watercourses and for reliable process control and wastewater treatment. Discharge consents under EPR regulations dictate that water quality monitoring is undertaken to ensure that consented parameters are below the consented concentrations. Traditionally this has been done using water quality sampling methods but increasingly automatic water quality measurement sensors linked to real-time telemetry is seen as the most reliable and...
In accordance with WHO’s Guidelines for Drinking Water Quality there is no health-based guideline value of zinc in water concentration. Concentration of zinc in tap water can increase as a result of its dissolution from pipes. Also, elevated levels of zinc may be an indicator of increased concentrations of other toxic metals; thereby zinc in water analysis is an essential analytical task.
Lumex Instruments provides sensitive and selective fluorimetric method for the measurement of mass concentration of zinc in...
The Sorbisense method allows for continuous monitoring of water quality. Measurements can be conducted as screenings of water catchments, warnings in catchments or directly into the supply system.
This method makes it possible to identify and map known problems, but also to trace the source of emergent problems.
When analyzing water and food, trust plays a very important role. Only careful analysis using tests that are performed correctly and are delivering sound results will help to maintain and improve our quality of life. With ready-to-use tests and test systems from Merck Millipore, you can trust your results. Our broad product range covers everything from water analysis to the control of production process up to the measurement of special food parameters.
The Sorbisense method is especially suitable for measurements in dynamic environments. For example, in rivers, streams and lakes.
The method is innovative and allows you to implement continuous and cost effective measurements in both urban and in rural areas. For example, measuring the leaching of nutrients from the cultivation of wetlands and measuring water quality in rainwater and sewage.
Testing phosphonates in hard water can be difficult due to interference from high levels of calcium. Here we present a phosphonate test method for hard water samples. The method is based on a chemical masking of the calcium.
The WAT hard water phosphonate test uses C30 Spectrophotometer to measure the chromogen PMB and digital thermoreactor to digest the phosphonate compound.
The thermoreactor capacity of 16 simultaneous vials provides for running critical data quality assurance samples.
For drinking water applications, atg UV Technology`s independently 3rd party validated UV systems are sized to deliver both 40 mJ/cm2 RED UV Dose, or a 3 log (99.9%) to 5 log (99.999%) reductions of Cryptosporidium. As a leading testing and validation protocol, the United States Environmental Protection Agency (US EPA) Ultraviolet Disinfection Guidance Manual (UVDGM) 2006 provides an advanced testing and validation method for guaranteeing UV disinfection performance for a large range of operating conditions, such...
Measurement of APHA color either on-line or in a
laboratory setting using a photometer. Background: APHA is sometimes referred to as the Platinum Cobalt (Pt/Co) or Hazen scale. Also referred to as a “yellowness index”, the APHA color scale is a common method of comparison of the intensity of yellow-tinted samples to assess the quality of liquids that are clear to yellowish in color. Originally developed to determine the purity of municipal water supplies, it is now used as a metric for purity in the water,...