6 PFAS Testing Caps and Vials
MicroSolv Technology Corporation™ has launched an exceptional collection of autosampler vials and caps designed for PFAS testing.
For accuracy in LCMS/MS or GCMS analysis of these compounds, the sample vials and caps used should not contain any PFAS which includes PTFE.
MicroSolv™ Polypropylene Caps and Vials are manufactured from the purest silicone rubber and pure, virgin, medical grade polypropylene, instead of traditional PTFE making them excellent for this type of analyses and will instil confi dence in laboratories who are testing for PFAS.
The vials are available in 2mL, 300ul and 700ul formats and the ultra-pure, septa cap choices are single use and closed top.
More information online:
ilmt.co/PL/nZ5Y 57421pr@reply-direct.com
GC-MS Air Analyser for Very Low Concentration Determination of VOCs in Indoor and Ambient Air to Method TO-17
A new instrument for the automated, in situ, determination of airborne volatile organic compounds (VOCs) using the OPTIC-4 Multimode Inlet for gas chromatography has been introduced by GL Sciences BV and ChromaVision. The technology features a sorbent tube placed as an injection port liner which can be repeatedly used to collect samples of air, with the trapped analytes being subsequently desorbed onto a capillary gas chromatography (GC) column without the use of intermediate cryogenic refocusing. As the system has no need for any liquid nitrogen or CO2
, there is no need for adsorption/desorption tubes. It is possible to set a continuous run so that for on-line analysis the system can run 24-7.
Using a multi positioning valve, the system can select between standards or taking sample directly from the outside via, e.g., a probe on the roof of a mobile lab. Sampling is done during a fi xed time with a constant fl ow controlled with a mass fl ow controller. Once the sampling period is fi nished, the carrier gas fl ow via the injector port is re-established. Following this, the injection port is heated to desorb the analytes from the injection port liner for transfer to the GC capillary column. In parallel with heating the injection port liner, the GC–MS analysis is started.
A home-made mixture of 63 compounds (comparable to the TO-17 mixture) is used for evaluation of the Air Analyser. Via a smart valving system, sample is loaded from bottom-to-top on the OPTIC Air Liner, being located inside the injection port at a temperature of 25°C The injection port is cooled with compressed air. Sampling is done during three minutes at 75 ml/min (total sample volume = 225 ml). After sampling, the carrier gas is re-routed through the injection port from top-to-bottom. Following this, the injection port is heated to 270°C, desorbing the trapped compounds to the capillary column using spitless transfer. The resulting chromatogram starts with n-Propane and ends with Naphthalene. Since the sample trap is in the injection port, no additional cryogenic focusing is required at the head of the capillary column.
More information online:
ilmt.co/PL/qa9m 55880pr@reply-direct.com
Integrating Microplate Evaporators with Liquid Handling Robots Porvair Sciences’ Ultravap®
‘bottleneck’ of solvent evaporation from 12- to 384-well microplates and glass vials up to 15 cm tall. The latest generation of Ultravap®
Mistral family of microplate evaporators are used in labs worldwide to remove the traditional laboratory Mistral evaporators are designed with new fl at front profi le and platform shuttle enabling easy
interfacing with liquid-handling robots for increased automation effi ciency. Reproducible sample throughput is achieved by proprietary advances in gas injection technology to directly and consistently deliver heated gas in each well and tube. It is however the full RS232 control of every parameter achieved through powerful operating software, combined with its open-access design, that enables the Ultravap®
The Ultravap®
Mistral to be easily integrated with liquid handling robots to gain the full benefi t of automating microplate dry-down. Mistral XT-150 is Porvair’s most advanced evaporator yet, giving signifi cant throughput advantages to laboratories routinely
tasked with sample preparation. Faster than centrifugal evaporation for single plates and tube racks, signifi cant increases in sample throughput are achieved through advanced evaporator head technology and an innovative manifold design, which directly injects heated nitrogen (temperatures up to 80ºC) into each individual well of the microplate simultaneously.
The Ultravap® primary Ultravap®
Mistral core software has been specially coded to allow simultaneous control of multiple operating units from a single, Mistral evaporator. Using the latest CAN interface technology, Ultravap®
Mistral units can be connected together in
series. A method selected on a primary unit will be automatically distributed over the CAN Bus to all downstream units to run the programme simultaneously. Contact Porvair Sciences for further information on fully automating your microplate dry down protocols. More information online:
ilmt.co/PL/RW0M
57162pr@reply-direct.com
Ultra-Fast GC can Help Make Testing Labs More Profi table and Sustainable
Analytical Testing Laboratories are seeing ever growing numbers of sample. A highly competitive marketplace means end users are demanding faster turn- around times and lower analysis costs. This means companies need to look at the latest techniques and technology available to ensure they can offer the best service at a competitive price, whilst still achieving good profi tability and operating a sustainable business.
One technique that can greatly increase sample throughput is Ultra-Fast GC. The Term has been banded around recently with some manufacturers even claiming a conventional GC with 2 channels is Ultra-Fast, So what really is an Ultra-Fast GC? A True Ultra-Fast GC directly heats the analytical column rather than using a conventional air blown oven. This offers several distinct advantages a conventional air blown GC cannot. The column can be heated at much faster ramp rates, this can help sharpen peaks and decrease analysis time. As only the column is being heated rather than an entire oven the cool down time is greatly decreased, this means that the injection-to-injection cycle time can be a fraction of that of a conventional GC. Directly heating the column rather than an entire oven also mean signifi cantly less energy is consumed per sample, helping companies further reduce their Carbon Footprint and meet their sustainability goals.
Ellutia has been a pioneer in Ultra-Fast GC technology for over 20 Years. The latest 500 Series GC is an innovative new design that can switch between operating as a conventional air-blown GC with regular fused silica column to an Ultra-Fast GC that directly resistively heats a metal column. The 500 Series GC features a compact footprint that means several GC’s can fi t under a single autosampler further increasing the sample throughput of a system.
More information online:
ilmt.co/PL/9DZy 56514pr@reply-direct.com
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LAB ASIA - APRIL 2022
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