conductivity detection News
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Determination of fluoride species in etching baths used in the manufacturing process of solar cells
Metrohm presents a method for the straightforward ion chromatographic determination of HF, HNO3, short-chain organic acids and H2SiF6 in acidic texturing baths used in the manufacturing process of solar cells. Standard ions such as fluoride, nitrate, acetate and sulfate are determined via suppressed conductivity detection while dissolved silicate is spectrophotometrically detected in the same run ...
By Metrohm AG
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ASTM E2386 - 04(2011) Standard Guide for the Conduct of PDD Screening Examinations
This guide establishes the essential and recommended elements in the procedures for conducting a psychophysiological detection of deception (PDD) screening examination. Covered here are the appropriate location and test conditions, the proper pretest, intest and posttest practices, and the correct evaluation procedures. This abstract is a brief summary of the referenced standard. ...
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New Waters «Empower» Software Integrates Metrohm ion Chromatography Systems
Waters extends the application spectrum of their «Empower» chromatography software: Effective immediately, «Empower» can also be used to control Metrohm ion chromatography systems. Users of the Waters software will benefit particularly from the Metrohm conductivity detection that is used mainly to determine anions, cations and polar substances in low concentrations. ...
By Metrohm AG
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What`s Suppression in ion Chromatography all About? Theoretical Aspects and Practical Benefits Explained
Suppression plays a key role in ion-exchange chromatography and conductivity detection. It is widely used, e.g., for the analysis of anions and organic acids. Metrohm is pleased to present a new brochure (8.000.5118) putting the theoretical aspects and practical benefits of suppression in ion chromatography in a nutshell. Suppression as a practical solution for ion chromatography decreases ...
By Metrohm AG
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Metrohm IC System `empowered` by Waters `Empower 3` software
The range of Metrohm ion chromatography systems running the Waters "Empower" software has become bigger. Next to Metrohm IC systems with conductivity detection now also Metrohm systems for combined anion and cation analysis as well as systems with amperometric detection can be controlled by Waters software. The new Metrohm IC Driver 2.0 enables users of Waters Empower 3 software to ...
By Metrohm AG
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New ASTM method simplifies determination of Kjeldahl nitrogen
The ASTM recently published method D8001 describing the determination of total nitrogen, total Kjeldahl nitrogen, and total phosphorous. The new method applies persulfate digestion with subsequent determination of Kjeldahl nitrogen by ion chromatography; no prior distillation of the matrix is required. Total Kjeldahl and total nitrogen are commonly determined by titration after distillation of ...
By Metrohm AG
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Analysis of produced water contaminants by ion chromatography
Drilling for oil or gas holds many challenges. Keeping pipes free of scale deposits is one of them. This involves the monitoring of ionic components in produced water, a task that is best handled by ion chromatography (IC).Avoid clogging of your pipe systemProduced water is water trapped in underground reservoir rocks and is brought to surface along with the crude oil and gas. Besides dispersed ...
By Metrohm AG
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Innovative Flow Measurement for full Pipes
Introducing the NFP in June 2007, NIVUS are proud to provide another further development in the field of high-accuracy permanent flow measurement technology. The new NFP (NIVUS Full Pipe) has been developed particularly for flow measurement in full pipes with diameters between 100 and 800 mm. Right as the NIVUS OCM Pro, the NFP is a so-called profiler based on the cross correlation ...
By NIVUS GmbH
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EN plating bath monitoring with ion chromatography
EN plating (electroless nickel plating) allows even plating, regardless of the geometry and surface area. Plating occurs through the autocatalytic reaction between nickel and hypophosphite. Over time, orthophosphite builds up in the tank. This can affect the appearance of the EN deposit and the corrosion protection it delivers. While the bath can tolerate some orthophosphite build-up, other ...
By Metrohm AG
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Ion chromatography for carbohydrate analysis and more
Metrohm is pleased to support the food and beverage industry with 4 applications utilizing ion chromatography with pulsed amperometric detection (PAD) for the fully automated determination of multiple GOSs (β-galactooligosaccharides) and carbohydrates in novel foods and instant coffee, respectively, key anions and cations in beer, and organic acids in wine. Foodstuffs are a ...
By Metrohm AG
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EPA Settlement with the U.S.D.A. Helps Protect Soil and Groundwater from Contamination
An underground storage tank (UST) at the Lake Moomaw Marina Store in Warm Springs, Va., will now be regularly monitored and inspected under a settlement with the U.S. Environmental Protection Agency to resolve alleged violations of UST regulations. The Lake Moomaw Marina Store is owned by the U.S. Department of Agriculture (USDA). The required monthly and yearly inspections of leak detection ...
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EPA Settlement with U.S. Postal Service Helps Protect Soil and Groundwater from Underground Storage Tank Leaks in Virginia
Through a settlement with the U.S. Environmental Protection Agency, the U.S. Postal Service (USPS) has certified that five of its facilities in Virginia are currently in compliance with federal and state underground storage tank (UST) regulations. As part of this certification, USPS has corrected violations associated with its failure to conduct release detection testing; line leak detector ...
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EPA Settlement with Ryder Truck Rental Protects Soil and Groundwater from Contamination
Ryder Truck Rental Inc. has agreed to pay a $22,500 penalty to settle alleged violations of underground storage tank (UST) regulations at the company’s facility located at 6605 Governor Printz Boulevard in Wilmington, Del., the U.S. Environmental Protection Agency announced today. EPA cited the company for not complying with safeguards designed to prevent, detect, and control leaks of ...
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EPA Settlement with Petersburg, Va., Business Helps Protect Soil and Groundwater from Contamination
An underground storage tank (UST) at the Petersburg Deli, Inc., in Petersburg, Va., will now be regularly monitored and inspected under a settlement with the U.S. Environmental Protection Agency to resolve alleged violations of UST regulations. The required monthly and yearly inspections of leak detection equipment on a 6,000-gallon UST that stores kerosene will help prevent soil and groundwater ...
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940 Professional IC Vario – Metrohm launches new high-performance ion chromatography system
Metrohm launches the 940 Professional IC Vario, the new high-performance ion chromatography system for research applications and routine use. The 940 Professional IC Vario is Metrohm’s most versatile IC system yet. Entirely modular by design, the 940 Professional IC Vario enables unlimited configuration possibilities and meets even the most challenging analytical requirements. The ...
By Metrohm AG
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ASTM E1151 - 93(2011) Standard Practice for Ion Chromatography Terms and Relationships
This practice deals primarily with identifying the terms and relationships of those techniques that use ion exchange chromatography to separate mixtures and a conductivity detector to detect the separated components. However, most of the terms should also apply to ion chromatographic techniques that employ other separation and detection mechanisms. The apparatus to be used in ...
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New «Work Horse» for routine analysis – Metrohm introduces 930 Compact IC Flex Ionchromatograph
Metrohm launches the 930 Compact IC Flex, a compact ion chromatograph developed for the requirements of contract laboratories and QC laboratories in all kinds of industries as well as laboratories in the public sector. Superior flexibility, perfect ease of use, and outstanding reliability are key features of Metrohm’s new ion chromatograph for routine analysis. The 930 Compact IC Flex is ...
By Metrohm AG
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Antalyas ASAT find more than 100 Leaks With Zonescan Alpha
Introduction ASAT is the General Water Directorate for the Antalya region in Turkey. The water company was established as a public authority for all water and wastewater services connected to the Metropolitan Municipality of Antalya. ASAT serves approximately 2.4 million people living within an area of 20,909 km2. The water comes from dozens of deep wells and transported to the customers from ...
By Gutermann AG
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Goodman oil agrees to pay over $171,000 for storage tank violations at gas stations across Idaho (ID)
Goodman Oil Company and Goodman Oil Company of Lewiston will pay a $171,091 fine for a series of fuel storage tank violations at former gas stations across Idaho under a settlement with the U.S. Environmental Protection Agency and the U.S. Department of Justice. The settlement, approved by the federal court in Boise, Idaho on October 1, covers a range of violations beginning as early as 1991 ...
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Cheap paper nano-sensor detects water toxins
Scientists have used nanotechnology to turn paper into a sensor that can detect toxins in drinking water. The China–US team dipped normal filter paper into a solution containing carbon nanotubes — which can conduct electricity — and antibodies to microcystin-LR, a common and dangerous toxin. They dried the paper and repeated the process until enough nanotubes were present to render it ...
By SciDev.Net
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