Water analysis with Carl ROTH
For everyone who wants to see more.
Water analysis requires high precision, reliability and availability.
Carl ROTH offers you a wide range of products for analysing potable water, process water, industrial water and wastewater. From laboratory chemicals, reference standards and reagents, through to test systems, consumables and accessories, you’ll find everything you need for your day-to-day work here.
Whether you use physical, chemical or biological methods, we help you by providing an extensive product portfolio, professional expert support and fast delivery. This means you can concentrate on what really matters: reliable, reproducible results for monitoring and protecting our most important resource – water.
This is what we represent with our experience and our vision Supporting science. Improving lives.
Physical methods
Reliably monitor water quality:
with solutions for analysing physical chemical parameters such as conductivity, turbidity, pH value, temperature and particle content, we create the basis for continuous process control and support the reliable monitoring of water in all relevant areas.
Determining physical chemical parameters is the foundation of all water analysis. Measured variables such as conductivity, turbidity, colour, temperature, suspended matter and dissolved solids are especially relevant to suppliers of potable water, wastewater treatment plants, industrial water treatment plants, power plants, laboratories, the pharmaceuticals industry and the food industry. These parameters provide reliable information about water quality, process stability, corrosion, deposits and contamination, and make it possible to analyse water samples quickly. They are often used as a starting point for further chemical or microbiological examinations.
Carl ROTH offers an impressive variety of analysis products for reliably monitoring these parameters. These include measuring devices, electrodes, sensors, calibration and reference standards, as well as suitable reagents and consumables.
By regularly monitoring physical chemical variables, it is possible to detect changes in water quality at an early stage and document them. The Carl ROTH shop contains all the products you need to determine these parameters, selected by experts and from a single source.
Chemical methods
Precisely determine water quality:
from chemical basic parameters and sum parameters through to organic and inorganic parameters, we offer practical solutions and test instruments for water analysis and help you meet legal requirements and optimise treatment processes.
Chemical basic parameters are some of the most important variables to examine in water analysis. Parameters such as pH value, water hardness, acid capacity, redox potential and oxygen content provide important information about water properties, corrosion potential and the efficiency of treatment processes, making them crucial for the fundamental analysis of water samples.
Reliably determining these parameters plays a key role in the analysis of potable water, municipal and industrial wastewater treatment, boiler water monitoring and environmental and process analysis. Regular checks are essential in agriculture, aquaculture, swimming pools, landfills and food production too. Changes may a sign of pollutants or faults in treatment plants and often form the basis of further analysis.
Carl ROTH offers a wide range of measuring devices, buffer solutions, standards, reagents and test systems for determining chemical basic parameters.
Sum parameters make it possible to quickly and conclusively analyse the overall contamination of water samples. Unlike the analysis of individual substances, they cover groups of substances or the total content, and provide important information about organic contamination, nutrient discharge and the water quality in general. They are therefore an essential component of wastewater analysis and for industrial and indirect dischargers.
The most important sum parameters include chemical oxygen demand (COD), biochemical oxygen demand (BOD), total organic carbon (TOC), total inorganic carbon (TIC), adsorbable organically bound halogens (AOX), total nitrogen (TN) and total phosphorous (TP). The established values are used for purposes including analysing biological and chemical pollutants as well as monitoring treatment and purification processes.
Carl ROTH offers an extensive selection of reagents, standards, cell tests, test kits and other laboratory accessories for determining sum parameters. These products assist with reliable and reproducible analysis and ensure that water monitoring complies with standards.
The analysis of inorganic parameters is used to determine dissolved minerals, trace elements and heavy metals in water and provides detailed information about the composition of water. These substances impact water quality, technical processes and hygiene requirements in the supply of potable water, industrial water treatment and environmental analysis.
The relevant parameters include minerals, nutrients, metals and heavy metals, as well as disinfectants and their degradation products. The typical variables that are investigated include, for example, zinc, calcium, magnesium, sodium, phosphate, nitrate and ammonia compounds, chloride and sulphate, as well as metals like iron, copper, lead, manganese, cadmium, mercury and other parameters. The analysis is often performed by means of ICP-MS, ICP-OES, AAS or ion chromatography.
Alongside our sound expert support, we offer an extensive portfolio of reference standards, cell tests, calibration solutions, laboratory chemicals and consumables for determining inorganic substances contained in water.
Organic trace materials are becoming increasingly important for modern water analysis. The analysis covers organic compounds and pollutants which may enter the water cycle through discharge from industry, agriculture, households or medical applications. Since many of these substances have an effect on health, the environment or technical processes, even in very low concentrations, the statutory limit values are also very low. The analysis therefore must be able to reliably and precisely verify even the smallest quantities of trace substances.
Relevant organic parameters include pesticides, phenols, hydrocarbons, surfactants, phthalates, pharmaceutical residues, hormones and per- and polyfluoroalkyl substances (PFAS). Determining these parameters results in high requirements for sample preparation, separation techniques and detection. Chromatographic processes, such as GC, HPLC or LC-MS/MS, are used in particular, as well as suitable sample preparation methods, for example solid phase extraction (SPE), to reliably prove even low concentrations.
For analysing organic substances in water, Carl ROTH’s range includes premium solvents, certified reference standards, SPE materials, chromatography columns and other accessories for sample preparation and instrumental analysis. These products help to achieve precise and reproducible results in routine analysis as well as in the complex analysis of trace substances.
Test instruments make it possible to determine numerous water parameters quickly and simply on site or in the laboratory. They are ideal in particular for routine checks, initial investigations and applications where measurement results have to be made available quickly.
Photometric and visual test systems, diagnostic dipsticks, cell tests and compact analysis sets, among other equipment, are used for various chemical and physical chemical parameters. Ease of use and short analysis times help to ensure efficient processes in potable water monitoring, industry, environmental analysis and technical applications.
Carl ROTH offers an extensive portfolio of test instruments and compatible accessories for reliable water analysis. These products make it possible to determine numerous parameters in a quick, reproducible and user-friendly process during routine and on-site analysis.
Biological methods
For comprehensive water monitoring:
we offer solutions for microbiological water analysis and help you to detect microbiological pollutants early on and reliably meet hygiene requirements, especially in sensitive areas such as potable water treatment, the food industry or municipal water management.
Microbiological water analysis is used to detect and monitor microorganisms and hygiene-relevant pollutants. Indicator organisms such as coliform bacteria (e.g. Escherichia coli), enterobacteriaceae, legionella and total viable count are examined, among other factors. This analysis is essential to detect hygiene risks early on and ensure that water is safe.
Microbial parameters play a central role especially in the supply of potable water, healthcare, laboratories, the food industry and the pharmaceuticals industry, as well as in cooling tower water plants and building water plants. Regular checks help to meet legal requirements and minimise health risks.
Culture media, membrane filtration systems, incubators, quick tests, microbiological analysis systems and consumables are used for sampling and cultivation. State-of-the-art rapid methods enable efficient and reliable monitoring, even when dealing with a high number of samples.
