column manufacturer Articles
-
The Clog Blog
Clogging and over pressuring are definitely problematic for Liquid Chromatography columns. Back in 2005 John Dolan’s sage advice to chromatographers to make an LC column last forever was simple, “Never open the box!” As John pointed out, this is not practical and I have to agree. But as an LC column manufacturer I have seen remarks from customers regarding clogging as though it ...
-
News on Air 2013, Volume 2: Products for Separation
Supelco® has developed the most extensive line of special purpose columns designed for industry specific applications; including environmental and industrial hygiene. These columns are manufactured to deliver high resolution, great analyte response, low bleed and long column life; allowing analysts to achieve the analytical performance they require. In this issue, you will find easy-to-read ...
-
New Inventory Update Rule Reporting Heads Our Way
The U.S. Environmental Protection Agency (EPA) proposed important revisions to the Toxic Substances Control Act (TSCA) Inventory Update Rule (IUR). This column explains why chemical manufacturers and other stakeholders must be aware of the proposal and prepare now for its ...
By Acta Group
-
Influence of the reflux ratio in a distillation column in the unsaturated polyester resins process
The Mexican chemical industry is facing new standards of ecological protection regulated by SEMARNAP (Department of Social Development) and norms imposed by SE (Department of Energy) that require the industry to adjust their processes to use the minimum amount of energy. In particular, the industries that create polyester resins from glycols generate streams of polluted liquids, which are causing ...
-
Lower Detection Limits with Ground-Breaking Column Technology
Rxi technology unifies outstanding inertness, low bleed, and high reproducibility into a single high performance column line. Take variation out of the equation and get the most consistent results for trace-level analysis with Rxi columns. phases available Rxi-1ms Rxi-1HT Rxi-5ms Rxi-5Sil MS Rxi-5HT Rxi-XLB Rxi-624Sil MS Rxi-35Sil MS Rxi-17 Rxi-17Sil MS Rxi guard/retention gap ...
-
Spare Parts for 65QV-SP, 100RV-SP, 150SV-SP Vertical Slurry Pumps
Tobee® Wear Parts of Vertical Slurry Pumps are made of High-Chrome alloy material which replace original SP Vertical Pump Parts on site. Mainly SP Metal Lined Vertical Sump Pump Parts: • Impeller - Double suction impellers (top and bottom entry) induce low axial bearing loads and have heavy deep vanes for maximum wear resistance and for handling large solids. Wear resistant alloys, ...
-
30-minute amino acid analysis of hydrolyzed samples
Pickering Laboratories specializes in the manufacturing of cation-exchange columns and eluants for amino acid analysis. No other tech¬nique has been shown to match the reproducibility and selectivity of ion-exchange analysis with post-column Ninhydrin detection. Nor is there a chromatography technique that provides as much information; the 570/440 nm signal ratio for each amino acid is a ...
-
Some notes about Fats and Oils, cis/trans-Fatty acids and our latest re-launched RT 2560
I recently posted a Blog regarding some notes about Fats and Oils, FAMES and our Famewax column, which can be found here. In Food Industry the challenge may be a bit heavier, if the amount of Trans Fatty Acids is requested. There is scientific consensus that trans fats intake has a negative effect on human health: more specifically, consumption of trans fats has a negative impact on blood ...
-
Rxi-624Sil MS Exceptionally Inert, Low Bleed Columns for Volatiles Analysis
- Optimized selectivity for volatiles and polar compounds ensures good separations. - Highly inert columns improve accuracy and allow lower detection limits, even for active compounds. - Most thermally stable 624 column available; low bleed, fully MS compatible. While mid polarity 624 columns are widely used for analyzing polar analytes and volatile organic compounds (VOCs), not all columns ...
-
Webinar Recap: “Developing, Testing, and Troubleshooting Chromatography Method Transfer”
Hi, I’m Tom Wheat, Principal Scientist at Waters, and I recently hosted a webinar entitled, “Developing, Testing and Troubleshooting Chromatography Method Transfer.” Over the course of the webinar, we discussed the transfer of chromatographic methods that occurs at many stages in the development and production of a product. In its simplest form, the method is moved from one ...
-
Designing Pollution Prevention into the Process
Consider the following recent examples of pollution prevention in chemical process plants: An Adiponitrile plant in Orange, Texas installed an inexpensive solenoid valve on the line supplying process water to flush the seals of process pumps used in intermittent service. The solenoid, which is connected to the pump control system, shuts off flush water when the pumps are not running. As a ...
-
Amino acid analysis matrix independent analysis of free amino acids
Pickering Laboratories specializes in manufacturing of cationexchange columns and eluants for amino acid analysis. No other techniques have been shown to match the reproducibility and sensitivity of this post-column methodology. Advantages of this method, such as absence of matrix interferences, are especially important in analysis of native samples. Pickering provides several options for the ...
-
Chromatography Tips
No.1 Gas Chromatography Tips Our Founders and engineers of the company had accumulated more than 60 years experience in the research and development of HPLC instrumentation; HPLC column technology; mass spectrometer installation, training and services; chemical and biochemical separation, detection and quantification, Proteomics and cancer biomarker research and instrumentation, etc. Our goal ...
-
New inventory update rule reporting heads our way
Proposed rule will significantly impact reporting functions. The U.S. Environmental Protection Agency (EPA) proposed important revisions to the Toxic Substances Control Act (TSCA) Inventory Update Rule (IUR). This column explains why chemical manufacturers and other stakeholders must be aware of the proposal and prepare now for its implications. Background The IUR requires manufacturers ...
-
Texas Instruments - A Novel Separation Technique for the Analysis of Trace Levels of Atmospheric Contaminants in Inert Semiconductor Process Gases
A NOVEL SEPARATION TECHNIQUE FOR THE ANALYSIS OF TRACELEVELS OF ATMOSPHERIC CONTAMINANTS IN INERTSEMICONDUCTOR PROCESS GASES J. Scott McWilliams, Alan Johnson, Charlene Long, Jeremiah D. Hogan*Texas Instruments, Inc.Dallas, TX 75265 Low ppb detection limits for contamination in cylinder gases have been achieved with gas chromatography using a modified gas injection system and megabore capillary ...
Need help finding the right suppliers? Try XPRT Sourcing. Let the XPRTs do the work for you