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22 matches found for diffusive_sampling

SPME-Fast Fit Fiber Assemblies (FFA) and Accessories

SPME-Fast Fit Fiber Assemblies (FFA) Holder and Storage Devices • SPME-Diffusive Sampling Fiber Holder (DFH) for TWA Air Monitoring • SPME-FFA Field Sampler (FFA-FS) for sampling and storing under tough conditions • SPME Storage Containers (Conventional Fibers and FFA) Multi Fiber EXchanger System (...

How Does the Diffusive Sampler Work and Why is it so Special?

radiello Table of Contents The diffusive sampler is a closed box, usually cylindrical. Of its two opposite sides, one is “transparent” to gaseous molecules which cross it, and are adsorbed onto the second side. The former side is named diffusive surface, the latter is the adsorbing surface (marked w...

SPME-Diffusive Fiber Holder (DFH)

SPME-Diffusive Fiber Holder (DFH), Cat.No. 57584-U for TWA Air Sampling with SPME A SPME-Diffusive Fiber Holder (DFH) installed with a FFA is capable of determining the time-weighted average (TWA) concentration of volatile organic compounds (VOCs) in air. Unlike conventional sampling with SPME, in w...

Air Monitoring Overview and Applications

Related Products • Carbon Adsorbent Sampler Kits • Gas Sampling Bags and Bottles • Air Monitoring Cassettes & Membrane Filters • Thermal Desorption Tubes • MAS®-100 Air Sampling Instruments • RCS® Microbial Air Sampling Systems & HYCON® Agar Strips • APC ErgoTouch Hand-Held Particle Counter • ATP & ...

Passive (Diffusive) Sampling Overview

Overview Radiello Passive Sampling Products DSD-DNPH Passive Sampling Device Diffusion Caps for PerkinElmer® Thermal Desorption Tubes SPME-Diffusive Sampling Fiber Holder (DFH) Overview Passive or diffusive sampling relies on the unassisted molecular diffusion of gaseous agents (analytes) through a ...

A Fluorescence Derivatization Reagent for the Liquid Chromatographic Determination of Airborne Isocyanates

Hartmut Henneken, Uwe Karst and Martin Vogel m.vogel@utwente.nl ......... Faculty of Science and Technology and MESA+ Institute for Nanotechnology, University of Twente, Enschede, The Netherlands. Currently, mono- and diisocyanates are widely applied for the industrial production of pharmaceuticals,...

Frequently Asked Questions – Analytical Chemistry Products

The following links provide information or answers relating to frequently asked questions (FAQs) about our consumables and services for analytical chemistry. If you need additional information, or would like to make a custom product request, please contact us! You can reach a technical expert by e-m...

Passive Air Sampling Tubes for US EPA Method 325

Related Articles • Reporter US Volume 33.4 (4 Mb PDF) • Simple Collection and 5-minute UHPLC Assay for 11 Isocyanates • Analysis of Isocyanates Using the ASSET™ EZ4-NCO Dry Sampler • Determination of Formaldehyde and Acetaldehyde in Air Using DNPH Cartridges and Automated On-Line Desorption Followed...

radiello Passive/Diffusive Samplers for Air Monitoring

radiello® passive/diffusive samplers for environmental monitoring, ambient and outdoor air monitoring, industrial hygiene, industrial air quality (IAQ), personal sampling and breathing zone assessment. The radial design offers higher capacity and faster uptake/sampling rates than traditional passive...

Frequently Asked Questions - radiello® Products

On this page: • General • Diffusive Bodies • RAD170 for Hydrogen Sulfide • RAD145 for BTEX/VOCs • RAD130 for BTEX/VOCs See Also: • What is passive diffusive sampling? • What is radiello®? • How to use radiello® • Applications What is the purpose of the recommended extra storage tubes? The extra stor...

Air Monitoring & Air Sampling Products

We offer Supelco® air monitoring and air sampling products for Solvent Desorption, Thermal Desorption, and Whole Air Sampling. Our offering includes: Passive Sampling devices; Sorbent Tubes; Thermal Desorption tubes for PerkinElmer, Markes, DANI, OI Analytical, Shimadzu, CDS/Dynatherm, Gerstel, and ...

Petrochemical Industry - Supelco Air Monitoring Applications

The petroleum refining industry has advanced from producing cheap kerosene as its main role during inception to its diversity today where the demands of modern transportation have led to production of gasoline, diesel and jet fuels. Industrial innovations have created the demand for petrochemical pr...

Validation of the Radiello® Diffusive Sampler for the Measurement of Formic and Acetic Acids in Museum Environments

P. Sacco, F. Quaglio Fondazione Salvatore Maugeri-IRCCS, Centro di Ricerche Ambientali, Padua/Italy psacco@fsm.it The assessment of potential damages to indoor cultural heritage, due to some airborne pollutants, is a major and growing concern for curators and conservators. For years, objects of art ...

Analytical Chemistry Key Competencies and Technologies

Review our core competencies, innovative technologies, areas of specialization, and product lines for the Analytical marketplace. To start the discussion about your specific request, business proposal, or idea for collaboration, please contact us. E-mail: analytical@sial.com • Overview of Key Compet...

Vapor Intrusion

Vapor Intrusion is defined as vapor phase migration of volatile organic (VOC’s) and/or inorganic compounds into indoor air spaces of occupied buildings from underlying contaminated ground water and/or soil. The resulting air quality problem from these vapors can pose a health risk to the occupants. ...

Carbopack™ X TD Tube for Fenceline Monitoring (EPA Method 325B)

EPA Method 325B Compliance Overview The US EPA first employed Supelco's adsorbent technology beginning in 1981 with the development of the first thermal desorption tubes as an alternative to sampling volatile organic compounds with bulky canisters and less sensitive solvent desorption methods. When ...

radiello® – Fast and Efficient Diffusive Sampling for Thermal Desorption

Klaus Buckendahl klaus.buckendahl@sial.com For most diffusive/passive air sampling systems, the collected samples are desorbed via chemical desorption. A typical example of a desorption solvent is carbon disulfi de (CS2) for the desorption of volatile organic compounds (VOC) / BTEX from activated ch...

Air Monitoring Applications

Used in industrial settings to protect workers and prevent environmental and product contamination, air monitoring is used to determine air quality in the working environment. Air monitoring examples include vapor intrusion in residential/commercial settings, contamination from petrochemical industr...

radiello® Diffusive Air Sampling Application - VOCs Thermally Desorbed

radiello Table of Contents Yellow diffusive body Product No. RAD1202 Supporting plate Product No. RAD121 Vertical adapter Product No. RAD122 (optional) Adsorbing cartridge Product No. RAD145 Or try: VOCs Thermally Desorbed Starter Kit Product No. RAD145S • 1 Support plate • 1 Yellow diffusive body •...

Radiello Diffusive Sampler for Monitoring 1,3-Butadiene and Isoprene in Workplace Air

The following was generated by an outside source using Sigma-Aldrich products. Technical content provided by: Paolo Sacco Fondazione Salvatore Maugeri, Padova/Italy, psacco@fsm.it The manufacturing of elastomers makes wide use of 1,3-butadiene (CAS No. 106-99-0) and isoprene (2-methyl- 1,3-butadiene...

radiello® Diffusive Air Sampling Application - 1,3-Butadiene

Related Products • radiello Diffusive Sampling products Related Information • Frequently Asked Questions • Data Sheet for RAD141 (PDF) • Data Sheet for RAD141S Starter Kit (PDF) • Field Validation of radiello Butadiene Sampler vs. OSHA 56 – Summary (PDF) • Supelco Reporter 37 Europe - radiello Butad...

radiello® Passive Air Sampler Overview and Applications

Related Products • radiello Diffusive Sampling products Related Information • Frequently Asked Questions • Request radiello Brochure and CD • Sampling data collection template (Microsoft® Excel) • What is radiello® diffusive sampling? • How does the diffusive sampler work? Why is it so special? • Co...