8 Environmental Laboratory New standard provides test method for carcinogens in water
A new ASTM International standard provides a test method for fi nding low concentrations of nitrosamines, a suspected type of carcinogen, in water. The standard (D8456) was developed by ASTM’s water committee (D19).
Nitrosamines exist in low concentrations in water, foods, vegetables, and dairy products. According to ASTM International member William Lipps, this standard presents a relatively easy measurement technique for nitrosamines. “Since nitrosamines are water-soluble, water testing labs can use the standard to check for them in water matrices,” says Lipps. “Manufacturers and labs testing consumer goods and foods can also use the method to test for trace nitrosamines.”
The new standard is also a move forward in sustainability for this form of water testing. “This method decreases required sample volumes, compared to other nitrosamine methods, thus lowering the carbon footprint, and requires a signifi cantly smaller volume of solvent,” notes Lipps. “It also does not use hazardous solvents such as methylene chloride, and it requires limited consumables.”
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58310pr@reply-direct.com Environmental analysis solutions from TE Instruments
A clean and safe environment is essential for a healthy and proper quality of life. TE Instruments contributes to this by providing market-leading combustion analyzers for a wide range of industrial companies, water management facilities, (environmental) testing labs, and research institutes.
Our portfolio of environmental testing solutions contains sample preparation methods and analytical combustion analyzers.
Combining the Combustion Xprep-IC solution with an Ion Chromatograph, TE Instruments ventured even further with a hyphenated combination for measuring PFAS bulk components in many different matrices.
XPREP-CIC
TE Instruments developed a fully automated, extremely compact sample preparation system covering oxidative pyro hydrolytic combustion, fraction
collection, and sample injection towards the IC. The Xprep C-IC can introduce samples both via optimized direct injection (liquids module) and conventional boat-inlet (boat module) into a horizontal furnace. This automated sample-prep solution reduces the complexity of sample transfer and signifi cantly improves user convenience.
XPERT TOC/TNb Want to evaluate and measure the effi ciency of your wastewater treatment plant or setup? This used to be a tedious and expensive job due to the analytical origin of measuring chemical oxygen demand (COD). The measurement of Total Organic Carbon (TOC) shows in general a good correlative behavior compared to old-fashioned COD measurements and is perfect to use as an alternative. TOC measurements are fast and reliable and most important: It doesn’t consume polluting chemicals to prepare the samples. With our Xpert TOC analyzer even Total bound Nitrogen TNb
analysis in parallel is possible. The combined values for TNb XPLORER AOX/TOX
Most of the organic halogens found in nature are toxic, carcinogenic, persistent, and bio-accumulative. Over time, these might pose a threat to the environment and to mankind. As a consequence, regulatory authorities around the globe have issued mandates defi ning the maximum permissible limits of these compounds in soil and water. Analyzing their specifi c composition in order to identify whether they stay within the permissible limits is both diffi cult and time-consuming.
The Xplorer AOX/TOX is designed to analyze a wide range of liquid and solid matrices rapidly and precisely. It is ideal for laboratories performing Organic Halogen analysis.
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High quality reference standards for PFAS analysis
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Per- and Polyfl uorinated Substances (PFAS) analysis is becoming more important than ever as these persistent environmental contaminants are being identifi ed in surface water, ground water as well as in animal and human populations across the globe.
XPERT TOC/TNb
Total Organic Carbon and Totalbound Nitrogen Analyzer
ASTM D7573 EN 1484 EPA 415.1 EPA 9060
ISO 8245 SM 5310 B ISO 20236
To address this world-wide pollutant, different regulatory agencies around the world continue to release test methods for the analysis of these compounds. Currently, there are promulgated methods from the USEPA, ASTM, and ISO for the analysis of these compounds in different matrices. The one thing all of these methods have in common is the requirement for low detection limits which makes the use of a high quality reference standards essential for accurate calibration and routine daily checks.
XPLORER AOX/TOX
Adsorbable Organically Bound Halogens / Total Organic Halides Analyzer
DIN 38409 DIN 38414 EN 1485
EPA 9020 ISO 9562
XPREP C-IC Automated Sample Preparation for Combustion IC
ASTM D7359 ASTM D7994
Drinking water -
TE Instruments USA 3430 S Sam Houston Pkwy E #400 Houston, TX 77047 United States of America +1 (281) 786-7224
Municipal water
Surface water -
- Groundwater Seawater
- - Brines
Effluent water -
Sludges - -
UOP 991 UOP 1001
Industrial water Soils
TE Instruments Voltaweg 22
2627 BC, Delft the Netherlands +31 15 879 5559
There are hundreds of PFAS compounds currently listed as being found environmentally, and many more will likely be discovered. AccuStandard offers a wide range of PFAS Certifi ed Reference Materials (CRMs) as single as well as multiple component mixes. For instance, our M-8327 - Perfl uorinated Native Compound Standard product contains 24 of the most commonly analysed PFAS at 2 µg/mL in a methanol/water matrix. This product can be used for many different methods and allows for easy and effi cient calibration. Other products include CRMs for test methods ASTM D8421, USEPA 1633 and ISO 21675:2019.
AccuStandard offers many other single component CRMs available to help the analytical chemists in meeting the requirements for these methods.
AccuStandard has 35 years of experience formulating chemical reference standards to aid the analytical community. They are accredited to ISO 17034:2016, and 17025:2017 as well as certifi ed to ISO 9001:2015.
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Discover the future safety solution for HPLC waste
Discover the liquid safety solution of the future, and turn your waste container into a closed safety system. The modular Safety Waste Cap ‘LISA’ blocks chemical vapours with its 3-layered exhaust air fi lter. It connects safely to your HPLC waste lines, and provides safe disposal of chemicals like solvents, acids and alkalis. It comes with multiple connectors for many tubing sizes, and is available for different containers and thread types.
The Safety Waste Cap is made of chemically resistant materials (PTFE and PE-HD) for use with all common chemicals used in analytical labs. The modular system is extendable with accessory ‘Satellites’ for additional connections and applications.
In order to block hazardous vapours and avoid overpressure inside the container, the Safety Waste Cap LISA works perfectly with the original 3-layered SCAT exhaust air fi lters. The fi lters contain 3 types of activated carbon, optimised for catching vapours of solvents, acids and alkalis.
The screw cap is freely rotatable and prevents your HPLC tubing from twisting when changing the container. Due to the variety of included connectors for different tubing sizes, LISA fi ts every HPLC/UHPLC system. To keep the system safely closed, it comes with blind plugs for every connection port.
For use in explosion-protected zones, electrically conductive versions are available. They provide a grounding connection for antistatic protection, and are designed for use with electroconductive containers.
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ilmt.co/PL/x99n and
ilmt.co/PL/Ly2P
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