Colorimetry Applications

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  • Category: Monitoring & Testing ×

  • Subcategory: Colorimetry ×

Freeze Drying

by Hiden Analytical     based in Warrington, UNITED KINGDOM

Lyophilization, commonly referred to as freeze drying, is the process of removing water from a product by sublimation and desorption. The freeze drying process is optimised by the introduction of solvents and gas species to improve product quality and to enhance the drying process. Hiden's gas analysers provide detailed information about the gas/vapour composition during both the primary and secondary drying phases. Detection of the on-set of the secondary drying phase is readily detected. Analysis during the secondary drying phase enables a reduction in process cycle time and provides end point detection. Accurate determination of a user defined process 'end point' enables high consistency in product yield from batch to batch.

Gas detection analyzers for coil coating industry

by Control Instruments Corporation     based in Fairfield, NEW JERSEY (USA)

Coil Coating is a high-temperature solvent vapor monitoring application in which rolls of aluminum or steel are coated with a color finish, oven cured to desired specs and sold to makers of cans, rain gutters, home appliances, building & automotive products and other fabrications. Coil coating requires the use of our PrevEx Flammability Analyzers to monitor the flammability of the solvent vapor driven off during the drying process. PrevEx analyzers accurately measure solvent mixtures and can withstand the temperatures required to prevent sample clogging in coil coating plants.

Restoration

by Omnitec Design, Inc.     based in Mukilteo, WASHINGTON (USA)

Restoring structures after floods and fires is a constantly evolving industry. In addition to keeping up with industry best practices for health and safety of both the contractors and the building residents post restoration, it is also important to be working with modern and reliable restoration equipment. Utilizing Omnitec and OmniAire products will allow you to take advantage of the latest best practice methods with equipment you know will work reliably and safely. Airborne contaminates and dust is a significant consideration for almost any restoration project. Did you know that studies have shown a substantial increase in air particulate matter during the drying process? Not only does dust and contaminates affect your worker’s safety, but also the safety of the post-restoration occupants. Just increasing the air circulation doesn’t remedy the situation and, without adequate filtration, may actually create more problems.

Monitoring engineering systems for wastewater treatment industry

by Pollution & Process Monitoring Ltd     based in Sevenoaks, UNITED KINGDOM

Sometimes an `off the shelf` water quality monitoring product is just not available and it is necessary to engineer a complete bespoke monitoring solution. System integration demands a diverse range of abilities. PPM is experienced in designing the correct suite of instrumentation combining manufactured, distributed and factored products.

Oxygen Permeation Analyzers for Packaging Industry

by Systech Instruments Ltd     based in Thame, UNITED KINGDOM

Systech Illinois` oxygen permeation analyzers offer reliable and versatile testing for all bottles, packages and films. These instruments provide extremely fast purge down time; accurate readings at the lowest levels and the highest quality sensors in the market. The changeover from wet to dry sample runs is the fastest on offer. Precise control gives a wide sample temperature range of 5° to 50°C and a measured and controlled relative humidity range of 20 to 90% RH.

Pool Water Testing / Spa Water Testing

by Myron L Company     based in Carlsbad, CALIFORNIA (USA)

Anyone and everyone who is responsible for operating and maintaining a swimming pool or spa has to test, monitor, and control complex, interdependent chemical factors that affect the quality of water bathers are immersed in. Additionally, aquatic facilities operators must be familiar with all laws, regulations, and guidelines governing what these parameters should be.

Analysis of Isocyanates Using the ASSET™ EZ4-NCO Dry Sampler

by Sigma-Aldrich Co., LLC     based in Bellefonte, PENNSYLVANIA (USA)

Isocyanates are used as a raw material to produce a number of products . Personal exposure can occur while the products made with isocyanates are being applied, or when the materials are removed by grinding or thermal degradation. Workers who are exposed to these compounds are at risk for respiratory disorders and asthma. The highly reactive nature of the isocyanate compounds and the low occupational exposure limits put high demands on both sampling and analytical techniques for monitoring of isocyanates in air. We investigated the performance of the LC-MS and LC-MS-MS methods in the analysis of isocyanates using the new ASSET™ EZ4-NCO Dry Sampler. We found that the analytical method can successfully reach the quantitation limit for most isocyanates of 5 ng/mL in the final sample when LC-MS-MS analysis was used and the quantitation limit of 10 ng/mL when LC-MS analysis was used. All 11 compounds were well-resolved chromatographically using a 15 cm Ascentis Express C18 column.

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